Construction method of rigid-flexible slope anti-seismic supporting structure

Abstract

The invention discloses a construction method of a rigid-flexible combined type slope anti-seismic supporting structure. The rigid-flexible combined type slope anti-seismic supporting structure comprises a rigid supporting structure and a flexible supporting structure. The rigid supporting structure comprises a rigid frame structure and a traditional anchor rod. The flexible supporting structure comprises a flexible frame structure and an anti-seismic anchor rod. The construction method comprises the following steps: 1, slope repairing; 2, lofting; 3, traditional anchor rod construction; 4, anti-seismic anchor rod construction; 5, rigid frame structure construction; 6, flexible frame structure construction; 7, tensioning and locking a traditional anchor rod; and 8, tensioning and locking the anti-seismic anchor rod. The problems that under the earthquake action, a traditional passive protection structure is poor in deformation control capacity, an active protection structure has no anti-seismic performance, anchoring failure is prone to occurring, and a frame retaining wall is disengaged and fractured are effectively solved, the anti-seismic structure is reasonable, the performance is excellent, double anti-seismic performance is achieved, anchor rod stress is adjusted in a balanced mode, slope displacement can be effectively controlled, and the safety of a slope is improved. The method has a wide application prospect and remarkable economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of slope reinforcement, and in particular relates to a construction method for an anti-seismic support structure of a rigid and flexible slope. Background technique [0002] my country's geographical location is relatively special. It is located between the circum-Pacific seismic zone and the Eurasian seismic zone. It is an area with relatively active earthquakes. As a result, earthquakes cause landslide disasters from time to time. [0003] The existing slope protection systems are mainly passive protection structures such as gravity retaining walls and anti-slide pile retaining walls, and active protection structures such as frame retaining walls and anchor rods, but both protection systems are difficult to effectively resist earthquakes. Under earthquake conditions, the passive protective structure cannot effectively control the vibration of the slope and the deformation of the rock and soil mass, and it...

AI Technical Summary

Problems solved by technology

[0003] The existing slope protection systems are mainly passive protection structures such as gravity retaining walls and anti-slide pile retaining walls, and active protection structures with frame retaining walls and anchor rods, but both protection systems are difficult to effectively resist earthquakes.

Under the earthquake state, the passive protection structure cannot effectively control the vibration of the slope and the deformation of the rock and soil mass, and it is very easy to cause the rock and soil mass to collapse and slide

Although the active protective structure has the ability to control deformation, it does not have the anti-seismic characteristics. Under the earthquake, the stress of the anchor rod increases sharply, which will cause the anchor head to fall off, the pressure platform to be crushed, the anchor rod to break, and the anchor to be pulled out. The structure of the rigid frame retaining wall will be void, brittle fracture, etc., which will cause the failure of the active protection system

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