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Waterproof structure of rectangular ejector pipe and ejector pipe ejection construction method

A technology of rectangular pipe jacking and waterproof structure, which is applied in earthwork drilling, wellbore lining, tunnel lining, etc. It can solve problems such as inability to meet waterproof requirements, and achieve the effect of ensuring safety and meeting waterproof requirements

Inactive Publication Date: 2015-05-13
SHANGHAI MUNICIPAL CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a waterproof structure for rectangular pipe jacking and a construction method for pipe jacking, so as to solve the problem that the existing rectangular pipe jacking cannot meet the waterproof requirements in the sand and gravel soil layer

Method used

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  • Waterproof structure of rectangular ejector pipe and ejector pipe ejection construction method
  • Waterproof structure of rectangular ejector pipe and ejector pipe ejection construction method
  • Waterproof structure of rectangular ejector pipe and ejector pipe ejection construction method

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Embodiment Construction

[0022] The waterproof structure of rectangular pipe jacking proposed by the present invention and the construction method of pipe jacking will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0023] Please refer to figure 1 and figure 2 , which is a structural schematic diagram of a waterproof structure of a rectangular jacking pipe according to an embodiment of the present invention. Such as figure 1 and figure 2 As shown, the waterproof structure 100 of the rectangular pipe jacking includes several rectangular pipe jacking joints 10 connected in sequence, and the rectangular pipe jacking...

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Abstract

The invention relates to a waterproof structure of a rectangular ejector pipe and an ejector pipe ejection construction method. The waterproof structure of the rectangular ejector pipe comprises a plurality of rectangular ejector pipe sections which are connected in sequence. Each rectangular ejector pipe section is provided with a steel lantern ring and a first waterproof structure arranged on the root portion of the steel lantern ring. Each first waterproof structure comprises an annular reinforcing steel bar and a first hydraulic expansion strip. Each annular reinforcing steel bar is fixed to the root portion of the corresponding steel lantern ring. Each first hydraulic expansion strip is arranged in the corresponding annular reinforcing steel bar. The first annular reinforcing steel bars, the first hydraulic expansion strips and the steel lantern rings are arranged in the rectangular ejector pipe sections in a concrete pouring mode. According to the waterproof structure of the rectangular ejector pipe and the ejector pipe ejection construction method, the first waterproof structures are prefabricated in the rectangular ejector pipe sections and are fixed to the steel lantern rings, the waterproof and anti-permeation effects can be effectively achieved, the waterproof demand is met when the ejector pipe penetrates through a sand gravel layer, and ejector pipe ejection safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a waterproof structure for rectangular pipe jacking and a construction method for pipe jacking. Background technique [0002] With the expansion of city scale and the increase of population, the utilization of urban underground space has developed rapidly, and the large-section rectangular pipe jacking technology has also been widely used in the construction of urban underground space. Compared with the traditional open cut method, the rectangular pipe jacking technology has obvious advantages. Adopting rectangular pipe jacking technology for construction, there is no need to relocate underground pipelines, no damage to the ground road structure, and no influence on the normal operation of existing road traffic. All construction is carried out below the road surface, the construction process is noiseless, and the cost is relatively low. lower. In the undergroun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38E21D11/00
CPCE21D11/00E21D11/38
Inventor 秦雨春戴南顾国平严国仙张剑平
Owner SHANGHAI MUNICIPAL CONSTR
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