Bearing rock sliding prevention and control device and method

Abstract

The invention provides a bearing rock sliding prevention and control device and method. As for two different types of slidable bearing rocks, two different rock fixing devices are adopted. For the first kind of slidable bearing rock, the rock fixing device comprises a first fixing anchor rod and a first auxiliary anchor rod which are driven into through bearing rock. The first fixing anchor rod and the first auxiliary anchor rod penetrate through the slidable sliding rock. The tail ends of the first fixing anchor rod and the first auxiliary anchor rod are in hooked connection and are deeply fixed to the interior of a stable mountain. The top ends, exposed out of the surface of the rock, of the first fixing anchor rod and the first auxiliary anchor rod are fixedly connected through steel strands. The steel strands are of a two-section structure. The middle portions of the steel strands are connected through a line tower bolt to form a ring-like closed structure to fix the slidable rockto the stable mountain or the ground. The closed ring-like structure buckled to an original ring can be added on the basis of an original closed ring-like structure to form a multi-ring cross-lockingstructure, so that the whole piece of large-area slidable raock and the stable mountain are fixed together, and part of the bearing rock of the mountain can be more effectively prevented from sliding.

Description

technical field [0001] The invention relates to the technical field of landslide prevention, in particular to a load-bearing rock sliding prevention device and method, which are widely applicable to mountain slopes with many rock structures and some rock layers are unstable. Background technique [0002] Building roads on slopes is a problem that must be faced in current road engineering. Since most of the mountains are multi-layer structures, sliding between rock layers is prone to occur, so most slopes need to take into account the prevention and control measures for the sliding of load-bearing rock mass. And the common practice at present is to drive many anchor rods perpendicular to the slope surface into the load-bearing rock mass to be fixed, to achieve the purpose of fixing the load-bearing rock mass. However, this fixing method often fails to achieve sufficient anchoring length, and it still cannot effectively fix the load-bearing rock mass. The load-bearing rock ma...

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Problems solved by technology

However, this fixing method often fails to achieve sufficient anchoring length, and it still cannot effectively fix the load-bearing rock mass, and the load-bearing rock mass may still slide, and may even bring the anchor rod out together when sliding

[0003] Another disadvantage of the traditional method is that it cannot deal with irregular and easy-sliding rock formations well. For the easy-sliding rock formations parallel to the ground, the traditional method can play a certain role in dealing with them. For the rock strata distributed on the slope, the effect of the traditional method is relatively small, and even some anchors cannot play a role

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