Construction method for vertical prestressed anchor rope friction pile slope-sliding prevention and treatment

Abstract

A construction method for controlling the anti-slide pile and anti-landslide of a vertical prestressed anchor line, and the prior anti-slide pile is internally provided with the vertical prestressed anchor line, the construction of which is carried out according to the following steps: a vertical anti-slide pile hole is dug on the coast and the hole is dug into the deep of a stone head, and the pile hole is internally pre-buried with a steel tube or a PVC tube; a prestressed anchor eye is drilled downwards from the bottom of the pile hole; the anchor eye has the prestressed anchor line inside and carries out cement mortar perfusion; a steel reinforcement cage is put into the pile hole, and the concrete pouring of an anti-slide pile body is carried out; the prestressed anchor line is tensioned and the free perfusion above the sloping surface of the anti-slide pile is carried out; when the concrete initially coagulates, the prestressed anchor line is locked in an anti-tension way. The invention makes use of the advantages of the technology of prestressed anchorage and the structure of the anti-slide pile, thereby solving the problems of too long embedding and fixing section, overlarge cross section, poor antidumping performance and higher investment, etc. of the anti-slide pile of the prior large coast.

Description

technical field [0001] The invention relates to geological disaster prevention technology, especially an economical and effective reinforcement technology suitable for landslide prevention. Background technique [0002] Since the middle of the 19th century, European countries have started research on the prevention and control of landslide disasters. In view of the limitations of people's understanding of the nature of landslides and the law of change and development at that time, and the limitations of various construction machines, they can only avoid large and medium-sized landslides. For small landslides, measures such as slope cutting, load reduction, back pressure, drainage, and gravity-type anti-sliding retaining walls are used for remediation, and the remediation methods adopted are very limited. After the war, due to the rapid economic development of various countries, especially the United States, Europe, the former Soviet Union, and Japan, a large number of infras...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a kind of vertical prestressed anchor cable anti-slide pile landslide prevention and construction method, aiming to make full use of the advantages of prestressed anchorage technology and ordinary anti-slide piles, and achieve the most effective effect with the best combination. The purpose of landslide control, so as to solve the problems of large-scale landslide anti-slide pile embedding section is too long, cross-sectional size is too large, low anti-overturning ability, high investment, etc.

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