Compound prestressed anchor cable capable of improving anti-shear performance of anchorage structure

A technology of prestressed anchor cables and anchor structures, which is applied in foundation structure engineering, sheet pile walls, excavation, etc., can solve problems such as anchorage structure failure and anchor cable deformation, and achieve improved shear performance, safety factor and stable state , Overcome the effect of anchor cable failure
CN106917407AInactive Publication Date: 2017-07-04UNIV OF SCI & TECH BEIJING +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2017-07-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a compound prestressed anchor cable capable of improving anti-shear performance of an anchorage structure, and belongs to the technical field of rock mass reinforcing. The anchor cable comprises a guiding cap, steel strands, a tensioner ring, a tightening ring, a sleeve and a grouting pipe; the sleeve is arranged nearby a sliding face or a potential sliding face, thus, the anti-shear effect of the anchorage structure can be effectively improved, and the defect that deformation is severe and even a slope is instable and is damaged due to the fact that a traditional prestressed anchor cable is short of the anti-shear capacity is overcome. Compared with the traditional prestressed anchor cable, according to the compound prestressed anchor cable, the arrangement distance between anchor cables can be increased, and meanwhile, the number of the anchor cables is decreased, so that related materials, time and fund investment are saved. The compound prestressed anchor cable capable of improving the anti-shear performance of the anchorage structure has the prominent advantages that the process is simple, operability is high, resources are saved, and the position of the anti-shear structure is controllable.
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Description

technical field

[0001] The invention relates to the technical field of rock mass reinforcement, in particular to a composite prestressed anchor cable for improving the shear resistance performance of an anchor structure. Background technique

[0002] In recent years, with the rapid development of my country's national economy, the country's demand for mineral resources, hydropower resources, and transportation resources has continued to rise, and corresponding geotechnical engineering problems have emerged one after another. Among them, cracks, landslides and The treatment and reinforcement of a series of disasters such as landslides are relatively common. Common treatment measures include slope cutting and load reduction, weight reduction and back pressure, anti-slide piles, grouting and prestressed anchor cables, etc. Slope cutting and load reduction can permanently change the internal stress state of slope rock and soil with the least investment, but it is easily limited ...

Claims

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