Shear anchor structure and its construction method

A technology of anchoring structure and anchoring section, which is applied in the direction of basic structure engineering, excavation, construction, etc., can solve the problems of small shear deformation, low shear resistance of anchoring structure, too conservative anchoring structure, etc., and achieve the effect of not being easily damaged
CN107401162BActive Publication Date: 2020-02-07四川钦耀炜岳建设工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
四川钦耀炜岳建设工程有限公司
Publication Date
2020-02-07

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Abstract

The invention discloses a shear-stress-reduction anchoring structure. The shear-stress-reduction anchoring structure comprises a free section drill hole. The inner bottom surface of the free section drill hole is provided with an anchoring section drill hole. The free section drill hole extends inwards to the inner side of a potential slip plane of a slope. An anchor bar is arranged in the free section drill hole and the anchoring section drill hole. The outer end of the anchor bar extends out of the free section drill hole. The anchoring section drill hole is filled with mortar wrapped outside the anchor bar. The free section drill hole is filled with a low-compression-modulus grouting material wrapped outside the anchor bar. An anchorage device which is arranged on the anchor bar in a sleeving mode and used for tensioning and fixing the anchor bar is arranged at an orifice on the outer side of the free section drill hole. The invention further discloses a construction method of the shear-stress-reduction anchoring structure. According to the shear-stress-reduction anchoring structure and the construction method thereof, the technical purpose of stabilizing the slope is achieved by means of the shearing strength between layers of rock stratums.
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Description

technical field

[0001] The invention belongs to the technical field of geotechnical engineering slope reinforcement, in particular to a shear-type anchorage structure and a construction method thereof. Background technique

[0002] A bedding rock slope refers to a rock slope in which the inclination of the rock layer is consistent or basically consistent with the orientation of the slope surface, and 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 support and reinforcement m...

Claims

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