- Comunicati pubblicati - sinorockzqq - Comunicati pubblicati - sinorockzqq Sat, 30 May 2020 17:35:10 +0200 Zend_Feed_Writer 1.12.20 ( Stabilising underground structures with Sinorock ground anchor system Sat, 30 Sep 2017 03:26:42 +0200 sinorockzqq sinorockzqq self drilling anchor bolts since 2011, Sinorock’s experience represents an immense wealth of engineering and practical know-how. Today, increased emphasis on safety, durability, on the environment and sustainability means that engineers are faced with the challenge of complying with more stringent requirements while meeting the growing demands of urban congestion and other site conditions. Sinorock engineers are trained and experienced in dealing with these issues and can assist clients in achieving their project requirements and goals. Sinorock's Ground anchor systems are in use around the world, securing famous structures, large dams and retaining walls, holding down underpasses and underground structures,stabilising wind turbine towers and preventing landslides.]]> Stabilising underground structures with Sinorock ground anchor system Sat, 30 Sep 2017 03:26:20 +0200 sinorockzqq sinorockzqq self drilling anchor bolts since 2011, Sinorock’s experience represents an immense wealth of engineering and practical know-how. Today, increased emphasis on safety, durability, on the environment and sustainability means that engineers are faced with the challenge of complying with more stringent requirements while meeting the growing demands of urban congestion and other site conditions. Sinorock engineers are trained and experienced in dealing with these issues and can assist clients in achieving their project requirements and goals. Sinorock's Ground anchor systems are in use around the world, securing famous structures, large dams and retaining walls, holding down underpasses and underground structures,stabilising wind turbine towers and preventing landslides.]]> Stabilising underground structures with Sinorock ground anchor system Sat, 30 Sep 2017 03:25:57 +0200 sinorockzqq sinorockzqq self drilling anchor bolts since 2011, Sinorock’s experience represents an immense wealth of engineering and practical know-how. Today, increased emphasis on safety, durability, on the environment and sustainability means that engineers are faced with the challenge of complying with more stringent requirements while meeting the growing demands of urban congestion and other site conditions. Sinorock engineers are trained and experienced in dealing with these issues and can assist clients in achieving their project requirements and goals. Sinorock's Ground anchor systems are in use around the world, securing famous structures, large dams and retaining walls, holding down underpasses and underground structures,stabilising wind turbine towers and preventing landslides.]]> Rock bolt support technology has been applied to many projects Wed, 27 Sep 2017 11:28:09 +0200 sinorockzqq sinorockzqq Currently,rock bolt support technology has been applied to many projects, but the project has a certain complexity and uncertainty, every concrete construction of geotechnical engineering, has its own particularity.

Rock bolt system has been widely used, it can create great effect on anchoring and restraining weathering by ejecting concrete.This kind of method can improve the whole carrying capacity of surrounding rocks and prevent collapse.In the field of rock bolt system manufacturing area,Sinorock should be put on the first place.

The rock bolt system are an efficient, economical, and simple solution to enhance reinforcement for mining,tunneling,hydroelectic and civil construction.

Sinorock rock bolts are manufactured for underground or ground applications in mines, tunnels, slopes, or wherever reliable ground support is needed.Sinorock rock bolts (friction bolts) are manufactured to a highest standard of quality. Rigid standards of quality are achieved by exhaustive quality control, testing and inspection procedures. Detailed drawings specify materials, dimensions, and tolerances.

Self drilling rock anchor bolt system of Sinorock has been applied in tunnel rehabilitation and enlargement, soil stabilization, rockfall mitigation, shaft construction, shotcrete, culvert installation, soil nail and anchor bolt installation. We have built a solid reputation as an emergency responder to natural and manmade disasters for most any type of construction emergency.

We are one of the most reliable names in the industry, offering self drilling anchor bolt to the clients at industry leading rates. Our huge supply network facilitates timely dispatch and delivery of ordered products. These products are manufactured using quality approved raw material and advanced industrial technologies.

Sinorock self drilling rock anchor as the positive support Wed, 16 Aug 2017 10:58:12 +0200 sinorockzqq sinorockzqq Self drilling anchor can put drilling, anchoring and grouting together, it had great help for increasing efficiency. Self drilling rock anchor is a positive support with simple structure. It can keep surrounding rocks’ integrity and stability in great extent, it can control deformation, displacement and cracks effectively, and it can develop the supporting effect of surrounding rocks. It has the features of transport-convenience, high-efficiency, low-cost, good-supporting effect and low-noise, etc. Since 1872 the first application of self drilling rock anchor applied in slope reinforcement in North Wales and 1912 the first ground anchoring technology applied in coal mine underground roadway in Germany, it has over 100 years’ history for ground anchoring technology at moment. Self drilling rock anchor , as an economic and superior technical method, has been applied in different engineering fields. It can not only applied in main coal-producing countries, but also in the field of metallurgy, water conservancy and hydro-power, railway, highway, tunnel and civil construction, etc. With the coming of 21st century, underground engineering projects have became more and more. It can be predicted that ground anchoring technology will be researched and popularized further. Sinorock will seize opportunity, research and develop new technology, produce more practical self drilling anchors and then protect construction engineering projects. Self drilling rock bolt is a very good choice for tunneling engineering. Combining drilling, grouting and anchoring together, it’s reliable, efficient and convenient. Sinorock can produce R25, R26, R32, R38, R51, R63, T30, T40, T52, T73, T76, 103, T111, T127 and T130 sizes and customized products to meet all the demands of self drilling rock bolts.]]> Several preparing works to be done of SDA bolt engineering Mon, 24 Jul 2017 11:24:42 +0200 sinorockzqq sinorockzqq The fundamental principle of geotechnical anchoring is to transfer tension of structures or keep self stability of excavation face in stratum, relying on shearing strength of hollow anchor bolts surrounding stratum.

Before construction of self drilling anchor bolt, there are several preparing works to be done:

1. Master conditions of basic and underground pipelines in construction area.

2. Judge adverse effects from self drilling anchor construction to surrounding structures and pipelines. Relevant precaution measures should be planned, in advance. 

3. Test self drilling anchor’s production craft, methods of tension and lock, equipment.

4. Identify grouting craft and grouting equipment.

5. Check raw materials’ variety, quality, model and inspection report. 

Main construction equipment during process are drilling machine and grouting equipment. Before equipment entering construction site, they should be checked completely. 

There are two kinds of professional people at construction site: technical operator and contributor. To guarantee their safety, all the design and operation works should be abided by the rules, especially at underground and closed space. 

Sinorock can provide the high grade self drilling anchor bolts for engineerings Thu, 13 Jul 2017 09:29:17 +0200 sinorockzqq sinorockzqq We are your premier source for commercial grade self drilling anchor bolts.For more than 10 years,Sinorock has set the standard for quality, value-added services, and superior customer service. 

We invite you to take a virtual tour of our facilities, see our quality control lab, browse our extensive selection of anchor bolts and hardware, meet some of our highly trained personnel, and learn from Sinorock customers why we are their supplier of choice.

Sinorock stands out from other anchor bolt manufacturers rapidly these years. We are a professional anchor bolt manufacturer, which has the ISO 9000 quality certification and CE certification. It’s mainly used in the mineral exploration, tunneling and slope stabilization project.

Self drilling anchor bolt can carry out drilling, grouting and anchoring integrally and will well improve surrounding rocks in various types of slope treatments so as to gain expected support results and solve hole forming difficulty problems in anchoring.

We have many advanced machines for self drilling anchors. Some of them are designed & developed by our ourselves. Now, we have applied for the patent about our machines. Reliable Products: We have got the ISO & CE certificates now. And in order to provide reliable products, we have built a set of mature, integral quality control system in the whole process.

Sinorock SDA bolt is the useful reinforced and support method Wed, 05 Jul 2017 11:46:10 +0200 sinorockzqq sinorockzqq SDA bolt is a new reinforced and support method for geotechnical engineering. It combines drilling, grouting and anchoring together, bonds surrounding rocks together with high efficiency and convenience, which aims to sustain engineering’s stability.

Before drilling, slope surface should be renovated according to design. Weak rock should be cleaned on surface, then professed machine positions location.

The location of drill hole directly influences installation quality and mechanical effect of SDA bolt. So, it’s important for professional technicists to mark prominent sign (red paint), not visual inspection.

Drilling platform should be settled to ensure security of drill machine and operators, which should has enough stiffness and stability.

Putting drill machine at anchoring hole and correcting inclination of principal axis to ensure angularity of SDA bolt. Then moving drill machine to make center of principal axis alignment to anchoring hole. Finally drill machine should be fixed to prevent movement during drilling process.

Sinorock self drilling anchor bolt can be applied for various of applications

Application 1:

In the adjacent streets of private houses, the buildings of the basement make full use of hollow micropiles, which form an integral part of the underlying structure with the foundation and ground layer. 

The Application of Self Drilling Anchor Bolt in Building Foundation

Application 2:

The foundation of the building, since the foundation of the ancient architecture has no reinforced concrete support structure, the time of settlement, in order to restrain the deformation, adopt the installation of micro-pile to control the development of deformation.

The Application of Self Drilling Anchor Bolt in Building Foundation

Application 3 

The pile group of structure supporting for supporting current foundation

The Application of Self Drilling Anchor Bolt in Building Foundation

Application 4 

The micropiles for new buildings used

Use rotary percussion drill to install micro-piles in one step. When installed, the cement paste is fixed to the ring area and no casing is required. The installation mode has no vibration and low noise. Smaller RIGS can be used for Micro-piles Installation and requiring less drilling, which means less damage and lower costs.

Sinorock self drilling rock anchor is a important element for support Wed, 28 Jun 2017 04:16:14 +0200 sinorockzqq sinorockzqq Rock bolt is the most widely used support element in support systems in underground mines and civil tunnels. Rockb olting design is indeed mainly based on experience and it appears that rock bolting design is simply a business of selection of rockbolt types and the determination of bolt length and spacing, but, one essentially uses, either explicitly or implicitly, a methodology in a specific rock bolting design.

Rock burst is an instability issue in overstressed hard and strong rock. The goal of rock support in such conditions is to absorb the kinetic energy of the ejected rock. Energy-absorbing rock bolts should be used in burst prone rock masses. The higher the load-bearing capacity of the energy absorbing rock bolt is, the less the ejected rock displaces.

Various sizes of self drilling rock bolts from Sinorock can provided for you,Sinorock self drilling rock anchors are often used for excavation support, or as a part of permanent retaining walls, or to resist up-lift forces on foundations. Sinorock uses rock anchors to stabilize slopes and walls, provide tiebacks for bridges, stabilize dams, and secure caisson bottoms.

Sinorock Self drilling rock anchor system’s inclination should be 15°~25° horizontal downward, no large than 45°. With increase of inclination, horizontal component of self drilling anchor system decreases. Too large inclination will reduce anchoring effect and increase vertical component on supporting structure, which will also cause settlement of retaining structure and surrounding foundation. To use self drilling anchor system’s pulling resistance effectively, self drilling anchor system should parallel with direction of side pressure effect.

Sinorock SDA bolt has safe, reliable and convenient characteristics Wed, 21 Jun 2017 11:46:02 +0200 sinorockzqq sinorockzqq SDA bolt is a kind of hollow bar with continuous thread, one end connects to drill machine and another one connects to one-off drill bit. When drilling, slurry can be injected through hole of bolt, which realizes integrated construction of drilling, grouting and anchoring. After grouting, it can ensure cement mortar and cement paste wrapping overall length of SDA bolt, contacting with surrounding soil body and then forming a combination. When grouting, slurry is from bottom of hole, stop-grouting plug is installed to realize pressure grouting, which can fill gaps in sandy gravel stratum, enlarge diffusion radius and anchoring range. So, SDA bolt has good anchoring effect in loose stratum.

A lot of experience have shown that SDA bolt in loose stratum has safe, reliable and convenient characteristics and can be widely used in urban engineering construction.

Sinorock self-drilling anchor embodies drilling, grouting and anchoring as a whole. Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It’s irreplaceable in narrow construction environment.

Sinorock Self drilling hollow anchor with drill bit can drill hole with common drilling machine. When reaching to designed location, self drilling anchor and drill bit are left in rock body, grouting can be proceeded directly. Unlike pipe shed, self drilling hollow anchor has injected holes on the top of drill bit, slurry is from bottom to eyelet, then diffuses all around to reinforce surrounding rock. Without pulling out hollow anchor bar and drill bit, it has strong adaptation on surrounding rock, even drilling and grouting at loose and broken surrounding rock.


Self drilling hollow anchor in loose surrounding rock tunnel can be used as pipe shed to support in advance, which can solve construction problems of hole-forming and installation.

Sinorock rock anchor systems for various of civil infrastructures Thu, 15 Jun 2017 11:10:38 +0200 sinorockzqq sinorockzqq Sinorock has been established in Luoyang since 2011 as a vendor that supply rock anchor bolt Products throughout the world for all Industries.

Our aim is to provide a wide range of steel materials and reliable services to our Customers.Over the years, Sinorock has experienced consistent growth through customers satisfaction with our professionalism and honesty in the provision of our services as well as the products which we provide to our customers.

Sinorock specializes in the design and supply of custom-designed rock anchor systems for the bridge construction industry, ranging from steel building and bridge climbing forms to major temporary works projects.

Serving the building and civil infrastructure sectors in the construction industry, we provide a complete solution - from conception and design, to fabrication, supply, delivery and equipment assembly.


Together with one of our co-operating companies,Sinorock can also provide fabrication, assembly, project management. We have the opportunity to redesign and/or adjust existing design to fit a cost saving fabrication in almost every corner of the world.

Sinorock hollow grouting anchor is the good geotechnical anchorage solution Sat, 27 May 2017 05:01:42 +0200 sinorockzqq sinorockzqq Hollow grouting anchor for medium-geological conditions, permanent support and advance support. Bolt through the hollow rod on the pressure grouting, consolidation can be achieved broken rock, cut off groundwater and rod preservative purposes, the rapid formation of supporting force, controlling the stability of surrounding rock. Hollow grouting anchor from the alloy rod, grouting stopper, plate, nut and anchor head components.

Self drilling hollow rock bolt is a good geotechnical anchorage solution.The hollow rock bolt is widely applied to pre-support project, radial support project, slope stabilization, foundation support project, roadway support project, soil nail wall, back pull anchor rod retaining wall and other rock supporting work.

Hollow anchor bolt manufacturers can be found all over the nation. There are easy ways for you to find out what manufacturers are in your area and which ones are not but still can service your area. There a many different choices you can make. Having a manufacturer that is in the area gives you the added bonus of being able to stop by the facility whenever you need to. Although you may only be able to get the kinds of anchor bolts your truly want from an out of state manufacturer. 

As the same trade company, Sinorock continuously researches and develops new technologies, and we tries to be the most professional self drilling hollow anchor bolt manufacturer.

Sinorock is a professional hollow anchor bolt manufacturer and supplier based in China,we provide a wide variety of anchor bolts,we make our products with a high quality alloy,thus they are strong and reliable.This is why they widely used in slope anchor,tunnel excavation,mine exploration,and other similar projects.Self drilling anchor bolts are our hot sale products.

Sinorock supplies quality self drilling hollow anchor bolt syetems which are made by her manafacture base in China,who is a certified factory according to ISO9001:2008 to our global clents with a competive price. Products are also with CE certification.

Use of Self drilling anchor bolt According to the various project situation Sat, 08 Apr 2017 11:35:30 +0200 sinorockzqq sinorockzqq According to the various project situation, the self drilling anchor bolt was chosen as the basic supporting equipment considering the convenient construction and low cost.

Self drilling anchor bolt support as a way of supporting, and there is a fundamental difference in traditional way of support.Traditional way of supporting is often caused by passive collapsed rock mass under loading, but anchor bolt supporting can actively strengthening rock and soil body, effectively control the deformation, prevents the occurrence of collapse.The main function of  self drilling anchor bolt supporting is suspensory action, cut across function, and the roles of composite beams and extrusion strengthening effect.

The self drilling anchor bolt of foundation support applied for other buildings or streets around the foundation pit, deep foundation pit or the poor soil stability conditions.Self drilling anchor  through the friction of  its soil and soil pressure on the bolt, and if necessary, also anchor pipe can be added when necessary for stronger support to deal with a large area of soft soil layer. For foundation support, anchor supporting has flexible, economic and easy to operate, safe and fast these features.And in the process of the installation of the self drilling anchor bolt, which won't generate a lot of noise and strict with construction site, even if it also can complete the set up in the narrow space.

Sinorock is the leading expert in self drilling bolt manufacturing Wed, 05 Apr 2017 10:39:31 +0200 sinorockzqq sinorockzqq Self drilling bolt as a important tool for measuring the anchoring force with small size, light weight, portable, simple operation, and security features.Steel anchor bolt is widely used in coal, defense, tunnel and transport and other tunnelling;Hollow injection anchor bolt is suitable for medium geological conditions, permanent support and advance support.

Being an expert in anchor bolt,Sinorock offer geotechnical solutions of grouting,micropiles and other deep foundations.Sinorock is a super anchor bolt manufacturer which provides best service.And It is supply effective solution for your construction.

We are proud to announce that we recently have been certified to the most recent ISO 9001:2008 Quality Management standard. We are physically and financially capable of handling even the largest of projects. From start to finish,Sinorock and our industry specialists can handle your projects needs.We do business the way it’s suppose to be done.

Sinorock offers the tightest tolerances in the industry. We are able to do so through stringent control of our process parameters and because of proprietary processes that we have developed. With over 4 years of experience in operating rock bolt, we have a complete understanding of the primary parameters that are responsible for variations in product quality and we are able to control these parameters very carefully. Similarly, we have developed special surface treatment and cold sizing processes that allow us to ensure extremely good dimensional control as well as surface cleanliness. In case of rock bolts, tighter tolerances translate directly into cost savings.

secure anchoring system in almost all applications Wed, 29 Mar 2017 08:27:41 +0200 sinorockzqq sinorockzqq Self drilling anchor system is an effective mean of anchoring. It can be used to advanced support and radial support of railways, slope reinforcement, roadbed reinforcement and regulation project of tunnel disaster.Because of the excellent thickness seamless steel tube, the convenient and rapid thread forming process on surface and the perfect fittings, self-drilling anchor system can make the unify of drilling grouting and anchoring come true.

Sinorock self drilling anchor bars are available in various diameters, steel grades and various levels of complexity. The most sophisticated anchor bolt in the Sinorock product range is the anchor bolt with expansion shell at the tip and spherical seating on dished stainless steel plates at the active end. Our high-strength, multi-functional,High-Performance anchor bolt of 

Sinorock provide fast, easy, and secure anchoring in almost all applications and substrates—from light- to heavy-duty.

Sinorock is major anchor bolt manufacturer in China,Our anchor bolts are manufactured with advanced production equipment and technologies, and raw materials are thoroughly inspected to ensure high quality. Then these products have reliable quality and reasonable price.

 Quality products and services are our stock-in-trade. These are what our customers insist on and what we constantly demand of ourselves.Our sophisticated machineries and talented workforce assist us in manufacturing anchor bolt products exactly according to the requirements of the customers And in order to ensure quality at each and every stage of our operations - be it production, administration or services, we got the prestigious ISO 9001:2008 certification.

 Keeping efficient and friendly customer service as the top concern,Sinorock provides ultimate flexibility in fulfiling each & every customer requirements irrespective of the size of the order.Most of our clients are doing bussiness with us since years,which indicates higher levels of customer satisfaction.We always welcome any queries or suggestions from our clients to improve the services and hence to serve them better.

Sinorock injection hollow bar as the practical and reliable placing solution Mon, 27 Mar 2017 10:06:11 +0200 sinorockzqq sinorockzqq The aim of ground support is to provide safe working conditions during the temporary construction activities and to give a sufficient long-term stability of the underground excavations in the permanent case. Ground support for safe working conditions, which is the responsibility of the Contractor, are to be addressed by initial support. For the long-term stability, additional support will be designed and nominated by the Engineer which the Contractor shall install. 

Generally,as an practical and reliable placing solution,hollow anchor bolt has been extensively applied in the mining,tunneling,foundation support,hydroelectric project and roadway support project and so on,with so many years of exploration and development,the techniques of the installation of hollow anchor bolt has became skillful and been trusted by our customers around the world.

Injection hollow bar is a cost effective way to build a safe, lasting structure. Structural problems are pricey. Creating a structure intended to last a long time is much less expensive in the long run and involves less work. 

Grouting is a so critical element to provide strong strength and bonding stress for surrouding rocks,with the whole wrapped of grout,the hollow anchor bolt can make a perfect effect on the operation of various civil constructions.

The facilitate of hollow anchor bolt is so easy that it’s the key elements for our agents to choose our anchoring products.We allows customization of hollow anchor bolt,so the length of rod body can be cut and connected as our customer’s specific requirements.

Sinorock is the leading hollow injection bolt supplier operating throughout the worldwide. we follow the market demand,providing market competitiveness of self drilling anchor bar products for construction all over the worldwide.As an important form of reinforcement in geotechnical engineering, Sinorock hollow injection bolt System supporting is safe, effective, and economical, etc.

Sinorock's s injection hollow bar system always committed to supply low cost, high efficiency, energy saving and environment-friendly products for global customers. We are confident for new challenges of future development and we are keeping improve our quality and service as well as management for better serving our customers and payback to the society.

The front slope geological condition with Sinorock rock bolt Sat, 11 Mar 2017 03:59:37 +0100 sinorockzqq sinorockzqq R32N self drilling rock bolt, steel mesh and shotcrete to protect the slope, which has a great supporting effect eventually. Self drilling rock bolt has lots of advantages over ordinary rock bolt,. Self drilling rock bolt can form hole in the gravel, sand and gravelly soil without using casing. Injecting cement slurry to the hole for anchoring the hole wall and preventing the hole collapse, which will simplify the construction process, save the construction cost, shorten the construction period, and has good economic benefit and social benefit.]]> Sinorock hollow bar anchor is suitable for all the strata Thu, 09 Mar 2017 09:57:01 +0100 sinorockzqq sinorockzqq hollow bar anchor is suitable for all the strata that retaining wall and soil nail wall and also the prestressed cable bolt can apply to . For the anchoring technology which has drilling operation requirements, drilling is usually the most critical process and directly affect the bearing capacity of the hollow bar. Drilling in the loose stratum or the stratum with groundwater, there is severe hole collapse phenomenon so that it’s necessary to add the casing to match. The use of casing can improve drilling progress, but have adverse effect on the bond between the mortar and the hole wall and meanwhile increase the difficulty and cost of construction. The advantages of hollow bar system hollow bar system anchoring in slope: 1. Inverse construction method can provide immediate supporting and resisting power after excavation, which is benefit for controlling deformation of excavation slope. 2. Shearing strength of slope potential glide plane and weal structural surface can be enhanced. 3. Stress state of rock-soil body can be improved. 4. Actual pulling resistance and quality of anchor bolt can be inspected accurately.]]> Self Drilling Anchor Bar has a very crucial influence on the geological anchoring industry Mon, 06 Feb 2017 10:07:43 +0100 sinorockzqq sinorockzqq Characteristics of Soft Soil Foundation
1. Because of many and big interstices in soft soil, and plenty water content in it, soft soil can be compressed easily. So soft soil has feature of strong compressibility. And quite bigger uneven settlements appear easily in soft soil foundation.
2. Under external pressure and disturbance, soft soil structures will be damaged, so it has weak resisting strength. Soft soil foundation will often occur landslide, settlement, collapse, etc. All these situations are mostly caused by pressure and vibration, which also proves soft soil’s weak resisting strength.
3. Owing to the peculiarity of soft soil sedimentary environment, soil textures’ evenness is not strong. If soft soil foundation has improper treatment, uneven settlement phenomenon will be happened.
4. According to experimental analysis, there is plenty water content in soft soil, at the same time, water permeability is poor. Same water content in different kinds of soil, soft soil water penetration speed is slower than others. So, it needs cost more time to settle soft soil when constructing buildings above soft soil foundation, which will also influence its foundation performance directly.
Self drilling anchor system combines functions of drilling, grouting and anchoring together, is suitable for loose and soft soil condition. Slurry fills interstices in soil texture from bottom to top, squeezes water and then it can reach the function of reinforcing soil body and supporting engineering.
With the development of high-speed railway around the world, the safety of slope stability and tunnel construction has gotten more and more attention. Integrating drilling, grouting and anchoring as a whole, Self Drilling Anchor Bar has three functions as steel bar, drill rod and grouting pipe during the operation, which will greatly improve the work efficiency and save the material cost.
Self Drilling Anchor Bar has a very crucial influence on the geological anchoring industry. It is an advanced anchoring system extensively used in the high speed rail projects for the slope reinforcement and tunnel excavation. In complex conditions, Self Drilling Anchor Bar will overcome the difficulties of collapse, making holes and unfilled grouting, but also ensure the stability of highway and people’s safety. Because of its unique construction technology and lots of advantages, Self Drilling Anchor Bar has been extensively introduced and applied.
Some basic knowledge of Sinorock hollow drilling rock bolt Wed, 18 Jan 2017 10:42:37 +0100 sinorockzqq sinorockzqq Rock anchor system is today’s solution for a fast and efficient anchoring system into virtually any type of soil. It has been successfully utilized for plenty of hydropower projects at home and abroad. By more and more practices, rock anchor system is proven to be 

an ideal, effective and environmental solution for hydropower station, railway, highway, subway and mining projects.Quick and reliable technology is essential for construction. Grouting rock anchor can solve 

defects that unfilled grouting of traditional mortar anchor bolt during the construction and can’t grouting with pressure. The operation is simple, cost is low, construction is convenient and efficiency is clear. Grouting rock anchor can save engineering materials and improve utilization rate. It’s a very ideal choice for metro rail and tunneling projects.

The technical features of hollow drilling rock bolt are: the main part of it is a hollow bolt, which can act as a drill pipe and the pipe for grouting. Before grouting may take advantage of the empty properties, blowing dust after rock drilling construction; The hollow bolt can act as grouting channel, when grouting, cement grout ejected from the drill through the hollow bolt, which can make the bolt closely bonded with the surrounding soil, achieving the purpose of the reinforcement of rock mass.


Before drilling, the shank of the connecting rod connected to the hollow bolt body and rock drill, after punching to design depth with the rock drill, installation plate and nut, then grouting. The size of the bit can control the size of the hole, generally the size of the hole is about 2 to 3 times the diameter of the hollow bolt. Since its rod can be freely cut, it is not only suitable for railway, tunnel and slope reinforcement engineering, more suitable for the foundation sink, hole collapse, landslides and other geological disasters of governance.