Construction method for mountable recyclable foundation pit drainage and protection system

Abstract

The invention discloses a construction method for a mountable recyclable foundation pit drainage and protection system. The construction method comprises the following specific steps that a concrete pavement is laid on the slope surface of a foundation pit, and a concrete slope protection coping is laid at the top of the foundation pit; after the side, away from the foundation pit, of the slope protection coping is tamped through plain soil and flattened, a prefabricated water retaining device is arranged; a foundation trench is excavated in the side, away from the foundation pit, of a water retaining wall, and the size of the foundation trench is adapted to that of a prefabricated drainage device; the drainage device is arranged in the foundation trench; and after construction is completed, a drainage tank and the water retaining wall are sequentially dismantled, so that recycling and reutilization are achieved. According to the construction method for the mountable recyclable foundation pit drainage and protection system, the drainage tank is in a U shape or an inverted trapezoidal shape, manufacturing and draining are convenient, and the drainage amount is large, so that rapid draining of water is facilitated; and effective drainage of underground engineering can be achieved due to the fact that the construction method for the whole drainage and protection system is simple in structure, convenient to construct and high in repeatable recycling utilization rate of all the parts.

Description

technical field [0001] The invention relates to underground engineering drainage, in particular to a construction method for an assembled and recyclable foundation pit drainage and protection system. Background technique [0002] In underground engineering, during foundation pit construction, in order to ensure the normal progress of construction, effective drainage is required. Drainage ditches are often set on the bottom and top surfaces of the foundation pit to drain the water in the foundation pit in an organized manner. Usually, the drainage ditch needs to use rectangular brick drainage ditch, but the brick drainage ditch generally needs to go through the steps of foundation cushion, brick laying on both sides of the drainage ditch, and cement mortar on the brick surface. The construction steps are not only cumbersome, but the construction period is long. At the same time, after the underground project is completed, the bricks used in the drainage ditch are usually disa...

AI Technical Summary

Problems solved by technology

Usually, the drainage ditch needs to use rectangular brick drainage ditch, but the brick drainage ditch generally needs to go through the steps of foundation cushion, brick laying on both sides of the drainage ditch, and cement mortar on the brick surface. The construction steps are not only cumbersome, but the construction period is long. At the same time, after the underground project is completed, the bricks used in the drainage ditch are usually disassembled and treated as construction waste, resulting in a waste of materials and the reuse of the materials used in the drainage ditch cannot be realized. Furthermore, as the price of bricks continues to increase, the construction of drainage ditch Costs are also increasing year by year

[0003] It is precisely because of the important role of the drainage ditch, but the existing technology not only increases the construction cost, but also has a low recycling rate of materials, so there is a need for a new recyclable drainage device suitable for underground engineering

[0004] In addition, it is necessary to install a water retaining device around the foundation pit for safety protection. However, the current construction steps of the water retaining device are cumbersome, the construction period is long, and the materials cannot be reused, resulting in waste of work costs and materials.

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