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Dismantling method for concrete waist beam

A concrete and waist beam technology, applied in excavation, construction, infrastructure engineering, etc., can solve the problems of delayed construction period, high risk, long construction period, etc., and achieve the effect of saving construction cost, improving construction safety, and ensuring construction safety.

Inactive Publication Date: 2012-09-19
GUANGDONG FOUND ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a temporary structure, the support must be dismantled when the construction reaches the waist beam. At this time, the construction period of blasting demolition is long and dangerous, which often delays the construction period

Method used

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  • Dismantling method for concrete waist beam
  • Dismantling method for concrete waist beam
  • Dismantling method for concrete waist beam

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] refer to Figure 1 ~ Figure 4 , the present invention is a method for dismantling a concrete lumbar beam, characterized in that it comprises the following steps:

[0021] 1) Set up a support frame below the waist beam 3 and / or install a suspension device above the waist beam 3;

[0022] 2) Disconnect the waist beam 3 into several sections along the length direction where the waist beam 3 is located;

[0023] 3) Chisel a groove 4 on the disconnected waist beam segment;

[0024] 4) Put the jack 5 in the groove 4, pressurize and push through the jack, so that the waist beam segment is separated from the foundation pit enclosure structure;

[0025] 5) Lift out the waist beam segment by a crane.

[0026] The removal method of this concrete waist beam is to cut the waist beam 3 into several sections, and then by chiseling grooves 4 in each section, put jacks 5 in the grooves 4 to open the sections of the waist beam to align the waist beam 3 The support frame and / or the su...

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Abstract

The invention discloses a dismantling method for a concrete waist beam. The dismantling method comprises the following steps of: cutting the waist beam into a number of subsections, then chiseling grooves in the subsections, and placing a lifting jack in the grooves to push the subsections of the waist beam open so that the waist beam is piecewise dismantled, wherein a support frame and / or a suspension device can prevent the waist beam from falling down on the ground after the waist beam breaks away from the grooves. The dismantling method has the advantages that the concrete waist beam can be safely and fast dismantled, and the construction safety can be better ensured while the construction cost is effectively saved; and the dismantling method is used for the field of building construction.

Description

technical field [0001] The invention relates to a building construction method, in particular to a method for removing a waist beam. Background technique [0002] In foundation pit engineering, traditional deep foundation pit support often adopts pile-anchor or anchor-wall retaining structure, and several prestressed anchor rods are made between slope protection piles or walls, and are anchored together through waist beams and slope protection piles. The waist beam can fix one end of the diagonal brace supporting the retaining wall on the waist beam, which can make the support of the diagonal brace to the retaining wall change from a point to a line, thereby improving the stability of the retaining wall. [0003] As a temporary structure, the support must be dismantled when construction reaches the waist beam. At this time, the construction period of blasting demolition is long and dangerous, which often delays the construction period. Contents of the invention [0004] I...

Claims

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Application Information

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IPC IPC(8): E02D17/02
Inventor 李龙送彭小林李才波刘庆兰陈啸严振豪
Owner GUANGDONG FOUND ENG GRP CO LTD
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