Construction method of built-in double-layer steel bucket drainage system after pouring basement floor

Abstract

The invention relates to a construction method of a built-in double-layer steel drum drainage system for basement floor post-casting, which mainly includes the production of double-layer steel drums, the construction of water-guiding blind ditch, the installation of double-layer steel drums, the installation of pumping and grouting equipment, and the collection of water Pumping, advanced waterstop and floor construction, double-layer steel drum grouting, and pouring after pouring. The seepage water enters the double-layer steel drum from the surrounding walls of the double-layer steel drum through the water-guiding blind ditch. There is a secondary filter layer and a grouting flower tube between the inner and outer walls of the double-layer steel drum. In-pipe grouting forms an impermeable post-grouting waterproof layer between the inner and outer walls of the double-layer steel drum. After pumping out the groundwater in the double-layer steel drum, the pumping pipe is used as a grouting pipe to flow into the double-layer steel drum. Grouting, filling the inside of the double-layer steel drum, and then pouring the post-casting belt. The drainage and drainage system involved in the invention has the advantages of simple manufacture, convenient and efficient construction, good drainage and drainage effect, can greatly reduce drainage and drainage costs, and has better economic and social benefits.

Description

technical field [0001] The invention relates to a construction method of a basement floor post-pouring belt with a built-in double-layer steel drum drainage system, which belongs to the technical field of foundation pit drainage engineering, and is suitable for the construction of basement post-casting belt drainage, especially for the range of outlet points for water gushing from fractures with pressure The drainage construction of closed basement with small size and centralized water outlet. Background technique [0002] At present, during the drainage construction of the closed basement, the dewatering well is often set up in the early foundation pit construction stage for pumping and drainage. When closing, the dewatering well is cut off in the middle of the bottom plate, and the sealing plate is welded after pouring concrete and other materials in the well, and finally pouring the concrete of this part of the bottom plate. This method has unfavorable factors such as nar...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems such as the narrow reserved space in the bottom plate of the drainage and drainage of the traditional foundation pit, the depth of some bottom plates is too deep, the dewatering well is easily damaged during the actual construction process, the sealing operation of the dewatering well is complicated, and the effect is not good. A construction method for basement bottom slab post-pouring with a built-in double-layer steel drum drainage system, which can well solve the problem of basement drainage

Images