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Prestressed wale dismantling and replacing structure and method

A prestressed waist beam and prestressed technology, applied in basic structure engineering, excavation, construction, etc., can solve problems such as affecting construction safety, and achieve the effect of shortening construction period and low processing cost

Inactive Publication Date: 2009-12-23
BEIJING CONSTR ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a prestressed waist beam removal and replacement structure and method, which mainly solves the technical problem that the removal of the shaped steel waist beam will affect the construction safety in the pile anchor wall structure

Method used

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  • Prestressed wale dismantling and replacing structure and method
  • Prestressed wale dismantling and replacing structure and method
  • Prestressed wale dismantling and replacing structure and method

Examples

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Embodiment Construction

[0032] Examples see Figure 4-5 As shown, this prestressed waist beam is removed and replaced. The inner wall of the foundation pit has a row of slope protection piles 1 and a layer of sprayed concrete retaining wall 11 arranged at intervals. Prestressed anchor rods 2 have prestressed anchor rods 2 perpendicular to the inner wall of the foundation pit in the soil between the piles, and each prestressed anchor rod is anchored together with the section steel waist beam 3 to be removed and replaced at the waist of the inner wall of the foundation pit.

[0033] see Figure 1-2 , between the two slope protection piles 1, a concrete waist beam 9 is arranged side by side on the side of the shaped steel waist beam close to the soil body, and the concrete waist beam 9 is connected with the prestressed steel strand 6 in the prestressed anchor rod by pouring, and the prestressed The steel strand 6 has an embedded anchor 5 at the pouring connection site. Dotted line is the outer edge of...

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Abstract

The present invention relates to a prestressed breast-beam removal substitution structure and its method. It is characterized by that along the inside wall of foundation pit is set a row of revetment piles, in the earth body between piles is set a row of prestressed anchor rods, and every prestressed anchor rod and section steel breast beam to be removed and substituted are anchored together. Besides, said invention also provides concrete construction method and steps for removing and substituting said prestressed breast beam.

Description

(1) Technical field [0001] The invention relates to a construction engineering foundation pit supporting structure and a construction method thereof. (2) Background technology [0002] In foundation engineering, the traditional deep foundation pit support often adopts pile-anchor wall protection structure, and several prestressed anchor rods are made between the slope protection piles, and are anchored together with the slope protection piles through the steel waist beam. When the engineering building uses the pile body as the outer edge of the structure, it must be removed when it is constructed to the section steel waist beam. At this time, if the prestressed anchor is still functioning, rashly removing the steel waist beam will affect the construction safety. In order to prevent engineering accidents, the construction period is often delayed. (3) Contents of the invention [0003] The purpose of the present invention is to provide a prestressed waist beam removal and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20E02D17/04
Inventor 胡裕新汪亚冬刘爱玲于大海
Owner BEIJING CONSTR ENG GRP CO LTD