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Construction method of sunken closed inner frame formwork for water collection well and elevator pit

A technology for water collection wells and elevator pits, which is applied in the direction of formwork/formwork/work frame, water conservancy projects, underwater structures, etc. It can solve the problems of formwork floating, insufficient rigidity, mold expansion, etc., and achieves easy hoisting and reasonable structure Effect

Inactive Publication Date: 2015-12-30
南通华通建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the actual construction, the formwork of the basement water collection well and the elevator pit frequently appears to float, and even the formwork is expanded due to insufficient rigidity, and it is difficult to repair and restore once a construction problem occurs during the construction process, causing unnecessary labor and labor for subsequent work. Waste of materials and mechanical repairs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A sunken closed inner frame formwork construction method for water collection wells and elevator pits, including formwork and wooden square size processing, hollow column production, formwork bottom opening, column installation, sub-keel installation, top cover formwork closure, and suspension rings Install and strengthen the formwork; when laying the facing concrete panel on the middle rib keel between the deformation joints of the formwork, one side will let out the groove, and the other side will be an outlet to avoid the leakage of the formwork joints; when the column is set, the inside of the formwork is 500- 600mm hollow column is set, and the hollow column adopts multiple evenly distributed hollow main keels to tightly connect the vertical and horizontal wooden squares into a whole, and the top is closed again with a formwork to prevent the concrete from entering the formwork; The 30mm wide stainless steel sheet presses the double-layer steel wire mesh, and then f...

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PUM

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Abstract

The invention discloses a method for constructing a water collection well, elevator pit sunk type sealed inner frame formwork. The method includes the steps of processing of the sizes of the formwork and battens, manufacturing of hollow upright columns, punching of the bottom of the formwork, installation of the upright columns, installation of a secondary keel, sealing of a top cover formwork, installation of hanging rings, reinforcing of the formwork and the like. The method is reasonable in structure, a main hollow keel arranged in the formwork also serves as an upright column formwork of exhaust holes, and enough rigidity is guaranteed. A novel positioning butt joint reinforcing device is arranged at the bottom so as to guarantee that a bottom formwork is smooth, concrete can not enter the formwork easily, and the bottom of the formwork is easy to detach. The hanging rings are arranged on the two sides of a water collection well and facilitate hoisting.

Description

technical field [0001] The invention relates to a construction method of a sunken closed inner frame formwork for a water collection well and an elevator pit. Background technique [0002] In the construction of the city, there will be water collection wells and elevator pits in the engineering design basement. There are water sumps in the bottom pit of the step ladder and the bottom pit of the escalator, and there are water sumps in the valve well chamber installed outdoors and the cable well. [0003] In the actual construction, the formwork of the basement water collection well and elevator pit frequently appears to float, and even the formwork is expanded due to its insufficient rigidity, and it is difficult to repair and restore once a construction problem occurs during the construction process, causing unnecessary labor and labor to follow-up work. Waste of materials and mechanical repairs. Contents of the invention [0004] The purpose of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G11/02E02D29/05
Inventor 胡建胡明华吴建军孙峰陈建邱训华崔小洪陈玉娟沈祥杨建忠
Owner 南通华通建设集团有限公司