Anchor structure and construction method of shear and pressure type anchor pile

Abstract

The invention discloses a shearing-relief and pressure-relief type cable-anchored pile anchor structure and further discloses a construction method of the shearing-relief and pressure-relief type cable-anchored pile anchor structure. The shearing-relief and pressure-relief type cable-anchored pile anchor structure comprises a pressure-relief type anti-slide pile structure, a pile-top shearing-relief type anchor structure and a slope body shearing-relief type anchor structure. The pressure-relief type anti-slide pile structure comprises an anti-slide pile; the anti-slide pile extends downwards into a stable rock body located below a slope body potential slip surface; a pressure-relief layer which can be compressed and deformed is arranged on the side face, making contact with a slope body, of the anti-slide pile; and the bottom surface of the pressure-relief layer is flush with the slope body potential slip surface or is located below the slope body potential slip surface. The pile-top shearing-relief type anchor structure and the slope body shearing-relief type anchor structure both comprise free section drilling holes; the inner side bottom faces of the free section drilling holes are provided with anchor section drilling holes; the free section drilling holes inwards extend to the inner side of the slope body potential slip surface; anchor ribs are arranged in the free section drilling holes and the anchor section drilling holes; the anchor section drilling holes are filled with mortar wrapping the anchor ribs; and the free section drilling holes are filled with low compression modulus grouting materials wrapping the anchor ribs.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering slope reinforcement, and in particular relates to a yielding shear yielding type anchor pile anchor structure and a construction method thereof. Background technique [0002] A bedding rock slope is a rock slope in which the inclination of the rock layer is consistent or basically consistent with the orientation of the slope surface. It is a common and easily unstable rock slope type. When performing slope cutting and excavation on bedding rock slopes, because the rock layer is usually a weak surface, if the inclination angle of the rock layer and the slope angle of the slope meet certain conditions, the slope rock mass is easy to collapse under the action of gravity. Integral or local instability and failure along the rock formation may cause losses or disasters. [0003] In order to avoid the instability and failure of bedding rock slope, it is very necessary to take reasonable...

AI Technical Summary

Problems solved by technology

In terms of this construction technology, since part of the slope cutting and excavation construction has been carried out before the implementation of the anchor pile anchor structure, it cannot be regarded as a real pre-reinforcement technology. In addition, the slope cutting and excavation construction is divided into two parts. It is obviously uneconomical to implement at this stage, and it is not convenient for construction organization

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