A construction method for a post-mounted retaining wall drain hole

Abstract

The invention relates to a construction method of a post-mounted retaining wall drain hole, which consists of two parts: a wall drainage pipe and a reverse filter layer. It can be achieved by pre-burying the casing during the construction stage of the retaining wall structure, first filling the soil and then back excavating to install the drain pipe and the reverse filter bag, laying the large face bricks of the retaining wall first, and then laying the face bricks at the drain holes, etc. The formwork of the retaining wall is easy to reinforce, the backfilling efficiency is high, and the drain pipe is not easy to be damaged. At the same time, it can ensure the accurate positioning of the drain pipe and ensure the beautiful paving of the bricks.

Description

technical field [0001] The invention relates to a construction method of a rear-mounted retaining wall drain hole. Background technique [0002] At present, the traditional retaining wall drainage pipe is buried during the construction of the retaining wall structure, and a length is reserved on both sides of the retaining wall. On the backfill side of the earthwork, use a reverse filter bag to wrap the protruding drain pipe. This construction method has the following disadvantages: (1) Since the drain pipe protrudes out of the retaining wall, it is necessary to open holes in the formwork on both sides, and the drain pipe protrudes out of the formwork to ensure that the wall formwork is straight, which makes it inconvenient to reinforce the formwork. The efficiency is low, and it is easy to cause damage to the drain pipe during the reinforcement and removal of the formwork; (2) The embedding of the drain pipe in the main stage cannot ensure accurate positioning, which affec...

AI Technical Summary

Problems solved by technology

This construction method has the following disadvantages: (1) Since the drain pipe protrudes out of the retaining wall, it is necessary to open holes in the formwork on both sides, and the drain pipe extends out of the formwork to ensure that the wall formwork is straight. The efficiency is low, and it is easy to cause damage to the drain pipe during the reinforcement and removal of the formwork; (2) The embedding of the drain pipe in the main stage cannot ensure accurate positioning, which affects the layout effect of the wall decoration bricks in the decoration stage; (3) Since the drain pipe protrudes out of the wall , in the earthwork backfill stage, it is necessary to manually backfill and tamp one by one, which affects the backfill efficiency on the one hand, and easily causes damage to the drain pipe on the other hand

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