Positioning grouting anchor rod suitable for engineering seepage failure prevention and control and construction method thereof

Abstract

The invention discloses a positioning grouting anchor rod suitable for engineering seepage failure prevention and control and a construction method thereof. The positioning grouting anchor rod comprises an anchor rod body, a grouting guide pipe and a grouting pipe. When seepage failure occurs in engineering, a water pump can be connected with a drainage pipe connector to achieve water drainage, and meanwhile a limiter is adopted for conducting positioning grouting on a seepage failure area to improve the grouting reinforcement accuracy. A drainage channel and a grouting channel are independentof each other and do not interfere with each other, the drainage function and the grouting function are combined on the basis that the original supporting function of the anchor rod is reserved, andtherefore the purpose of efficiently preventing and treating engineering seepage failure is achieved, and meanwhile the construction cost and the construction period can be saved.

Description

technical field [0001] The invention relates to the technical field of bolt grouting support engineering, in particular to a positioning grouting bolt suitable for engineering seepage damage prevention and control and a construction method thereof. Background technique [0002] With the continuous development of the economy and the country's strong support for infrastructure projects, my country's underground geotechnical engineering has achieved unprecedented development. In engineering construction, groundwater seepage is a ubiquitous phenomenon, but complex seepage often causes deformation and damage to buildings and foundations, causing seepage damage, which has also become an important cause of most engineering accidents including deformation of foundation pits and collapse of surrounding buildings. . [0003] At present, in slopes or other underground projects, in order to improve the stability of the surrounding rock and soil, the common engineering treatment method ...

AI Technical Summary

Problems solved by technology

In actual engineering, there are often risks of anchor bolt reinforcement failure caused by seepage damage caused by complex seepage, which is mainly reflected in two aspects: first, the existence of groundwater will affect the calculation of the support structure, resulting in inaccurate design of the anchor bolt support structure; , Groundwater seepage damage will reduce the grip force between the anchor and the surrounding soil, and ultimately affect the overall stability of the entire anchor reinforcement system, that is, traditional anchors cannot be directly used in complex groundwater seepage environments.

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