Applicable to steel pipe support foundation pit quick change support method and movable joint
A technology of steel pipe joints and movable joints, applied in excavation, infrastructure engineering, construction, etc., can solve the problems of inconvenient installation, high requirements on the accuracy of the position of the intermediate joint, etc., and achieve the effect of speeding up the replacement speed and reasonable stress system.
Active Publication Date: 2021-04-09
ZHONGJIAN SUIDAO CONSTR CO LTD +4
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Problems solved by technology
The active head of this device can only be along the longitudinal direction of the steel pipe, and the accuracy of the position of the middle section is high, otherwise it will cause inconvenience to the installation
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[0056] The application will be further described below in conjunction with the accompanying drawings and embodiments. The advantages and features of the present application will become clearer in conjunction with the following description. It should be noted that the embodiments of the present application have better implementability, but are not used to limit the present application. The technical features or combinations of technical features described in this embodiment should not be regarded as isolated, and they can be compared with each other. Combination to achieve better technical effect. The scope of the preferred embodiments of the present application may also include other implementations, which should be understood by those skilled in the art to which the embodiments of the present application belong.
[0057] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques,...
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This application relates to the technical field of building construction, and provides a method and movable joint suitable for quick replacement of foundation pits supported by steel pipes. The movable joint is used to adjust the direction of the support body and assist the replacement of foundation pits. The installation and disassembly are relatively simple. It can save the construction period and reduce the difficulty of construction operation, and can be reused to reduce the construction cost. The quick support method is suitable for different foundation pits. The installation and disassembly procedures are relatively simple. The improved stress system is better than the traditional stress system. It is more reasonable, thereby saving the construction period and reducing the operational difficulty of construction, reducing the construction cost, and ensuring the safety of foundation pit replacement. The technical points of the bracing replacement method mainly include the following steps: (1) vertical structure construction, pre-embedding the second type of joint fixing components; (2) installation of the second type of joints; (3) changing the middle section to the basement (4) Carry out the support of the support pile and the outer wall.
Description
technical field [0001] The present application relates to the technical field of building construction, in particular to a method for quick support replacement of steel pipe supporting foundation pits and a movable joint. Background technique [0002] The foundation pit of the subway station has the characteristics of large depth, and the dimension in the length direction is much larger than the dimension in the width direction. The earth pressure mainly comes from the plane where the length direction is located. Therefore, among many foundation pit support types, support piles + steel pipe support are often used. The earth pressure on both sides is supported by steel pipes, which has obvious characteristics such as clear force, simple calculation, high rigidity and small deformation. After the excavation of the foundation pit is completed, when the main structure needs to be built from bottom to top, the steel pipe support will hinder the construction of the main structure,...
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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 袁晏仁陈睿杰高东波赵峰王维国黄滨苏世聪张国良赵璞
Owner ZHONGJIAN SUIDAO CONSTR CO LTD