Perforated pipe for consolidating foundation

A foundation reinforcement and porous pipe technology, which is applied in soil protection, infrastructure engineering, construction, etc., can solve the problems that affect the promotion and application of MJS construction technology and the high cost of imported porous pipes
CN103174148AActive Publication Date: 2013-06-26SHANGHAI FOUND ENG GRP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI FOUND ENG GRP
Publication Date
2013-06-26

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Abstract

The invention relates to a perforated pipe for consolidating foundation. A long oil pipe assembly is disposed in the center of a main pipe of the perforated pipe, two ends of the main pipe of the perforated pipe are fixedly connected with a long adapter assembly and a short adapter assembly in a sealing mode, and the other end of the long adapter assembly is fixedly connected with a short oil pipe assembly in a sealing mode. The perforated pipe is provided with fifteen holes, wherein four holes are threaded holes for being connected with the assemblies, three holes are used for venting, two holes act on a mud disposal shutter switch and oil flows through the two holes, two holes are drilling holes and water flows through the holes; a sensor wire is inserted in one hole, pulp flows through one hole, and muddy water flows through one hole. The perforated pipe does not break or crack under 10KN*M torsion, can work normally in rather severe environment, sealing property of the perforated pipe meets design demands, namely, hydraulic energy does not lose when a plurality of perforated pipes are connected together. Further, the perforated pipe satisfies practical applicability of metro jet system (MJS) construction method no matter on solid mechanics or fluid mechanics.
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Description

technical field

[0001] The invention relates to a foundation reinforcement device for underground building construction, in particular to a porous pipe used for foundation reinforcement in the MJS construction process. Background technique

[0002] With the rapid development of municipal construction and high-rise buildings in Shanghai, underground structures such as subway stations, tunnels, and basements of high-rise buildings have increased rapidly. Due to the weak soil quality and water permeability of Shanghai, the foundation reinforcement method has been used in underground projects to ensure that the underground The safe and rapid construction of the project has become an indispensable measure. However, the previous method will produce a large soil squeezing effect during the construction process, which will cause ground uplift and surface cracking during the construction process, which will affect the normal use of surrounding buildings, structures, and municipal pip...

Claims

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