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Bolt support

Jun 05, 2017

Bolt support is a kind of reinforcement and support method used in the construction of underground windows such as slope, deep foundation pit and other surface works and tunnel and stope.

The use of metal parts, pieces of wood, polymer or other materials made of pole, into the surface rock or chamber around the rock before drilling, the use of its head, the body of the special structure and tail pallet (also may not ), Or rely on the bonding effect of the surrounding rock and stabilized rock combined with the suspension effect, combined beam effect, reinforcement effect, in order to achieve the purpose of support.

With low cost, good support effect, easy operation, the use of flexible, take the construction of less than the advantages of net space.

Bolt support is to change the mechanical state of the surrounding rock itself through the anchor rod inside the surrounding rock, forming a whole and stable rock zone around the roadway, and using the bolt and the surrounding rock to achieve the purpose of maintaining the stability of the roadway. It is a positive defense of the support method, is a major change in mine support.

Bolt not only support the effect is good, and the use of materials province, the construction is simple, is conducive to mechanized operation, construction speed. But the anchor can not close the surrounding rock, to prevent the surrounding rock weathering; can not prevent the cracks between the cracks in the rock off.

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