Roadbed subsidence grouting treatment structure and construction method thereof

Abstract

The invention discloses a roadbed subsidence grouting treatment structure and a construction method thereof. The roadbed subsidence grouting treatment structure comprises a plurality of rows of grouting pipe groups which are arranged on both sides of a central division strip of a roadbed and inserted at the interior of the roadbed horizontally from the outer side of the roadbed, wherein each row of grouting pipe groups comprise a plurality of grouting pipes; a plurality of grouting pipes in the same row are exposed at one end of the outer side of the roadbed and are communicated with one side of a same connecting pipe; the other side of the connecting pipe is communicated with a grouting main pipe; and drainage sewers in the same direction as the grouting pipes are arranged between two adjacent rows of grouting pipe groups. The grouting effect of a plurality of grouting pipes can be ensured, and accumulated water in the roadbed is drained in time; and moreover, the construction technology is simple, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to a roadbed subsidence grouting treatment structure and a construction method. Background technique [0002] Subgrade is an important structural facility of a highway, and it is also one of the important contents of highway maintenance. Engineering practice shows that grouting reinforcement method is one of the effective methods to deal with subgrade settlement diseases. However, the traditional subsidence grouting treatment structure and construction method have the following defects: First, when multiple grouting pipes are driven into the roadbed, it is impossible to grout the multiple grouting pipes at the same time, so the grouting pressure of each grouting pipe , grouting duration, etc. cannot be guaranteed to be the same, which will cause problems such as different grouting effects of each grouting pipe, and uneven subsidence and uplift of the subgrade. Secondly, the traditional construction method does not set seepage di...

AI Technical Summary

Problems solved by technology

However, the traditional subsidence grouting treatment structure and construction method have the following defects: First, when multiple grouting pipes are driven into the roadbed, it is impossible to grout the multiple grouting pipes at the same time, so the grouting pressure of each grouting pipe , grouting duration, etc. cannot be guaranteed to be the same, which will cause different grouting effects of each grouting pipe, uneven subsidence and uplift of the subgrade, etc.

Secondly, the traditional construction method does not set seepage ditches after the grouting is completed, so that the water in the subgrade cannot be discharged in time after precipitation, and the infiltration of precipitation will soften the subgrade, affect the stability of the subgrade and cause subsidence of the subgrade

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