Sinorock SDA bolt is the useful reinforced and support method

05/lug/2017 11:46:10 sinorockzqq Contatta l'autore

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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.

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