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Permanent anchor rope used for side slope stabilization

A permanent and stable technology, applied in sheet pile walls, excavation, construction, etc., can solve problems such as loss of overall anti-corrosion function of cement slurry stones, hidden dangers of long-term safe operation of the project, and reduction of tension relaxation of cables, etc., so that it is not easy to crack , prevent the infiltration of groundwater, and maintain the effect of tension for a long time

Active Publication Date: 2005-08-10
李炳奇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of brittle crack damage will cause the cement paste stones to lose their overall anti-corrosion function and reduce the tension relaxation of the cables, which will bring major hidden dangers to the long-term safe operation of the project

Method used

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  • Permanent anchor rope used for side slope stabilization
  • Permanent anchor rope used for side slope stabilization
  • Permanent anchor rope used for side slope stabilization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] specific implementation plan

[0028] The cable 8 of this example adopts unbonded steel strands with a PE protective layer attached, and there are six unbonded steel strand cables 8 in total, and three sets of load-bearing components A1, A2, A3, and the lower ends of the six cables are Divide them into three groups on average, and fix them symmetrically on the pressure bearing plates 2 of the three groups of bearing components (see Figure 1). The cables 8 pass through the centering frame 6 in parallel to keep the cables parallel Anchor hole center. The upper ends of the six unbonded steel strand cables are tensioned and fixed to the outer anchor head III, so that the cement slurry stones in the inner anchor section I transmit the tension of the outer anchor head to the foundation in the form of compression. Since the cement paste stone has the characteristic that the compressive strength is far greater than the tensile strength, it will not produce cracking and progres...

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PUM

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Abstract

The permanent anchor rope for stabilizing slope is composed of external anchoring head, internal anchoring part and free part, and said internal anchoring part is formed from guy rope and more than one group of internal anchoring end bearing components which are distributed along the vertical direction, every group of bearing components has pressure-bearing plate and vertical pressure-beaning column whose lower end is fixedly connected with pressure-bearing plate, and the upper end of the guy rope is anchored to the external anchoring head, and its lwoer end is grouped and distributed in different bearing components, and respectively fixedly connected with pressure-bearing plate of correspondent group bearing component. Said invention can make the stretching force of anchor rope obtain permanent retention.

Description

technical field [0001] The invention belongs to a permanent anchor cable used for stabilizing slopes in geotechnical engineering. Background technique: [0002] Prestressed anchor cables are an important means for slope stability and reinforcement in geotechnical engineering, and can be divided into temporary anchor cables and permanent anchor cables according to their service life. Permanent anchor cables require a service life of 50-100 years or even longer, so the durability requirements for prestressed anchor cables are getting higher and higher. Referring to Fig. 1, the permanent anchor cable mainly consists of an inner anchor section (I), a free section (II) and an outer anchor head ( III), usually the unbonded stay cable (8) is composed of a steel strand and a protective cover, the steel strand at the core and the lower end are fixedly connected with the outer anchor section and the inner anchor section respectively, and the tension should be maintained for a long ti...

Claims

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Application Information

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IPC IPC(8): E02D5/74E02D17/20
Inventor 李炳奇矢富盟祥
Owner 李炳奇
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