Soil landslide raft-type lattice-bolt-anchor composite anti-skid structure and method

Abstract

The invention provides a soil landslide raft type lattice-anchor rod-anchor cable combined anti-skid structure and a soil landslide raft type lattice-anchor rod-anchor cable combined anti-skid method. The soil landslide raft type lattice-anchor rod-anchor cable combined anti-skid structure comprises a raft type lattice, anchor rods and anchor cables, wherein the raft type lattice comprises a raft foundation and lattice beams; the raft foundation is constructed on the surface of a control area and is of a beam plate type structure, a bottom plate of the raft foundation adopts a rectangular bidirectional plate, the thickness a of a raft is not smaller than 30cm, the plane dimension of the raft is b*h, and the unit of the plane dimension is m; the lattice beams which are arranged in a criss-cross way are constructed at the upper part of the raft foundation, and a reinforced concrete lattice is formed by the lattice beams; the expansive type anchor rods are uniformly arranged on the lattice beams, and the anchor cables are uniformly arranged at intersecting positions of the lattice beams. The soil landslide raft type lattice-anchor rod-anchor cable combined anti-skid structure provided by the invention has the beneficial effects that a quasi-rigid body is formed by combined action of the expansive type anchor rods, a soil mass and the pre-stressed anchor cables, thus the shearing strength of a slip mass and the mechanical parameters of the soil mass are increased, and the integrated stability of the slip mass is greatly increased; the soil landslide raft type lattice-anchor rod-anchor cable combined anti-skid structure can be widely applied to slope control engineering and has the characteristics of flexible technology, wide applicability, quick construction speed, low manufacturing cost and the like; the operability is strong, and the practical value is large.

Description

[0001] field of invention [0002] The invention relates to soil slope and landslide treatment technology, in particular to a soil landslide raft type lattice-anchor rod-anchor cable composite anti-skid structure and method. Background technique [0003] In recent years, along with the development of my country's economy and the implementation of the western development strategy, the national infrastructure undertakings - water conservancy, hydropower, mines, railways, highways, and urban construction have also developed rapidly, and the area of ​​mountainous areas in my country accounts for more than 70% of the total land area , so in engineering construction, excavation of rock and soil mass cannot be avoided, resulting in a large number of artificial slopes (such as figure 1 , figure 2 ), forming slope geological hazards, if the protection of these slopes is not handled properly, it will lead to slope instability, affect the normal operation of the project, and cause econo...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing problems in the soil landslide control methods in the prior art, such as inability to cure radically, large amount of engineering, difficulty in applying the prestress of the anchor cable to the design value, and difficulty in transferring the sliding force to the stable surrounding rock body through the anchor cable, the present invention proposes a Composite anti-sliding structure and method of raft-type lattice-anchor-anchor cable for soil landslides

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