The front slope geological condition with Sinorock rock bolt

11/mar/2017 03:59:37 sinorockzqq Contatta l'autore

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The front slope geological condition of Huafu highway Wayao Bay Tunnel entrance is poor and the soft cover layer is thick. A disturbance will cause landslide when slope cutting. The rainy weather increased the landslide, which makes the slope stability more pore. Ordinary mortar anchor can not take root in the soft slope and is difficult to play a supporting role. Because the geological condition of the front slope is poor and the cover layer is thick and weathered seriously, if using the ordinary mortar for anchoring and shotcreting, it’ll be difficult to reach the expected effect. If using the long cable for anchoring the mountain, the cost is too high and the construction is very difficult. Therefore, after consideration, combing 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.
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