Construction method for lowering ground water in roadbed construction process

Abstract

The invention discloses a construction method for lowering ground water in a roadbed construction process. The method comprises the following steps: clearing a construction load, excavating to the topsurface of the roadbed, compacting and leveling the roadbed, arranging cross slopes on the left and right sides of the roadbed by taking a center line of the roadbed as a baseline, excavating groovesin the left and right sides of the roadbed, mounting a drain pipe at the bottoms of the grooves, digging a collecting ditch along a direction parallel to the axis of the drain pipe, respectively digging a water collection pit communicated with the collecting ditch on two ends of the collecting ditch, mounting a drainage device in the water collection pit, and backfilling groove sections between the water collection pits at the two ends of the collecting ditch to the top surface of the roadbed. In the building construction process of the road, due to mutual combinations of the collecting ditch, the water collection pits, a centrifugal pump and other structures, underground water is discharged out of the road, and the groundwater pumping problem in a water-rich zone is solved. The construction period is effectively shortened, the construction cost is reduced, the construction is simple and the popularization is easy.

Description

technical field [0001] The invention relates to the technical field of roadbed construction, in particular to a construction method for lowering groundwater levels during roadbed construction. Background technique [0002] During the construction of municipal roads, when the terrain height difference of new roads changes greatly, due to the influence of rainfall and other factors, the water accumulated in the soil will slowly flow through the soil into the lower soil layer due to the terrain difference. lead to high groundwater levels. The traditional method of dealing with subgrade water seepage is often to set side ditches on both sides of the subgrade, and the seepage water is discharged through the lateral slope, or the high-level terrain water seeps out naturally and the low-level subgrade soil is dried before subgrade compaction. However, when building municipal roads in water-rich areas where the groundwater level is already high, the lateral slope cannot be used to ...

AI Technical Summary

Problems solved by technology

However, when building municipal roads in water-rich areas with high groundwater levels, the use of lateral slopes cannot discharge groundwater in time, which will affect the quality of roadbed construction and later maintenance

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