A three-dimensional interval construction method for underground comprehensive pipe gallery warehouse body
A technology of integrated pipe gallery and construction method, which is applied to artificial islands, water conservancy projects, underwater structures, etc., and can solve the problems of waterproof performance of pipe gallery, structural durability, structural bearing capacity, long construction period, and integrated cast-in-place underground Problems such as the immature construction technology of the pipe gallery have achieved the effect of reducing cracks, speeding up construction, and controlling cracks
Active Publication Date: 2018-12-07
中建五局第三建设有限公司
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Problems solved by technology
[0002] 1. Judging from other cast-in-place comprehensive pipe galleries in China, the main structure of the pipe gallery often produces cracks due to concrete drying shrinkage and temperature shrinkage in the early stage of forming. The cracks will affect the waterproof performance of the pipe gallery, structural durability, structural bearing capacity, etc.
[0003] 2. The construction technology of cast-in-place underground comprehensive pipe gallery is not mature in my country, and there is a common problem that the construction period is too long
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[0035] The present invention will be further described below in conjunction with accompanying drawing.
[0036] see figure 1 and image 3 , the three-dimensional interval construction method of the underground comprehensive pipe gallery warehouse body, including the design of separate warehouses, reserved pre-embedding of the joints of double warehouses, retention of deformation joints, concrete pouring and waterproof treatment of deformation joints, the details are as follows:
[0037] (1) Warehouse design:
[0038] The distance between sub-warehouses is generally 20-30m. Generally, a deformation joint is set at the junction of the two sections. The deformation joint of the pipe gallery structure should penetrate through the bottom plate, wall and roof to achieve the purpose of stress release and resist the uneven settlement of the foundation and the pipe gallery. Telescopic deformation ( figure 2 );
[0039] (2) Reserved and pre-embedded joints of double compartments: ...
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The invention discloses a three-dimensional interval construction method for an underground comprehensive pipe gallery bin. The three-dimensional interval construction method is characterized in that the integral settlement universal rule of a pipe gallery structure is analyzed through numerical simulation to obtain a deformation joint with a set distance of 20-30 mm; and the comprehensive pipe gallery bin is subjected to three-dimensional interval construction, and is integrally connected through a force transmission rod. Time interval for casting adjacent two sections of the pipe gallery is not smaller than 14 days. The three-dimensional interval construction method has the beneficial effects that: firstly, generation of concrete early-stage cracks can be reduced; secondly, a working surface can be additionally arranged for performing water flowing; thirdly, the construction period is greatly reduced; and fourthly, a template turnover utilization rate is high and cost is reduced. The three-dimensional interval construction method disclosed by the invention can be widely applied to construction of a concrete cast-in-place structure main body of an urban underground comprehensive pipe gallery.
Description
technical field [0001] The invention relates to a construction method for an underground comprehensive pipe gallery body, in particular to a three-dimensional interval construction method for an underground comprehensive pipe gallery body. Background technique [0002] 1. Judging from other cast-in-place comprehensive pipe galleries in China, the main structure of the pipe gallery often produces cracks due to concrete drying shrinkage and temperature shrinkage in the early stage of forming. The cracks will affect the waterproof performance of the pipe gallery, structural durability, structural bearing capacity etc. [0003] 2. The construction technology of cast-in-place underground comprehensive pipe gallery is not mature in my country, and the problem of long construction period is common. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a three-dimensional spaced construction method for an underground comprehe...
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IPC IPC(8): E02D29/045E02D29/16E02D31/02
CPCE02D29/10E02D29/16E02D31/02E02D31/025E02D2300/002
Inventor 廖飞李金成李尚黄俊文陈光明
Owner 中建五局第三建设有限公司