Existing retaining wall reinforcing structure and construction method thereof

Abstract

The invention relates to an existing retaining wall reinforcing structure. The existing retaining wall reinforcing structure comprises an old road, wherein the old road comprises an existing retaining wall, an existing filling body and a current mountain body; a base at the bottom of the existing retaining wall is positioned on the current mountain body; the existing retaining wall reinforcing structure comprises a steel floral tube and anchor rod combined structure and an existing filling body grouting system structure; the steel floral tube and anchor rod combined structure comprises a plurality of drill holes which are vertically drilled downwards to the position below the base of the retaining wall, steel floral tubes which are inserted into the drill holes and anchor rods which are buried in the steel floral tubes; a retaining wall breaking angle which is matched with the existing filling body grouting system structure is formed at the position, which is close to the current mountain body, of the bottom of the existing filling body; and the existing filling body grouting system structure comprises a common grouting body and a dense grouting body. The existing retaining wall reinforcing structure is simple in structure and skillful in design; the anti-slipping and anti-overturning ability of the existing retaining wall is improved effectively, and therefore, the purpose of passive reinforcement is achieved; and the filling body in a reinforcing range is separated by the dense grouting body, and the grouting amount of the filling body can be controlled effectively.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, in particular to an existing retaining wall reinforcement structure and a construction method thereof. Background technique [0002] At present, in the construction of housing, highways, railways, mines, water conservancy and other projects, the wall structures built to withstand the lateral pressure of the soil to prevent the subgrade filling or the collapse of the hillside soil are collectively referred to as retaining walls. Reasonable setting of retaining walls can effectively reduce the grading range of embankment slopes or cutting slopes, greatly reduce the number of earthwork works, and correspondingly reduce the difficulty of dealing with policies such as land acquisition and demolition. It plays a very important role in engineering applications. The classification of retaining walls is different according to different types, and the gravity retaining wall has a relativel...

AI Technical Summary

Problems solved by technology

On the one hand, the structure needs to excavate the foundation pit for the base of the retaining wall, plant bars and cast concrete, etc., which has high requirements for construction space, and its application is limited in some projects with limited sites; on the other hand, it is difficult to It is suitable for projects where the existing retaining wall has slippage along the base, and the application has certain limitations

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