Construction method of underground diaphragm wall of railway transit engineering

Abstract

The invention belongs to the technical field of underground engineering construction, and discloses a construction method of an underground diaphragm wall of railway transit engineering. The construction method of the underground diaphragm wall of the railway transit engineering specifically comprises the step: construction preparation, guide wall construction, mud system, channel section excavation, channel section examining, bottom clearing for mud replacing, wall brushing, reinforcement cage manufacturing, reinforcement cage hoisting, concrete pouring, joint treatment, embedded part arrangement and control protection measure, and wastewater and waste mud treatment. The method is safe, economical, applicable, reasonable, high in quality, efficient and advanced in technology; on the basisof sufficient field visit and traffic study, a construction scheme is reasonably compiled, thus is scientific and applicable, and considers factors such as economy of construction in particular, andthus the scheme is scientific, economical, applicable and safe; and based on normalized and standardized construction, the scientific and advanced construction method is selected preferentially, and the engineering quality and the construction period are guaranteed, and comprehensive, reliable and operable safety-ensuring measures are established.

Description

technical field [0001] The invention belongs to the technical field of underground engineering construction, and in particular relates to a construction method for an underground diaphragm wall in a rail transit engineering. Background technique [0002] At present, the closest existing technology: underground diaphragm wall excavation technology originated in Europe. It was developed based on the method of using mud and underwater concrete for drilling wells and oil wells. In 1950, Milan, Italy first adopted the construction of retaining mud underground diaphragm walls. In the 1950s and 1960s, this technology was developed in western developed countries. It was promoted in the former Soviet Union and became an effective technology in underground engineering and deep foundation construction. [0003] The underground diaphragm wall is a kind of trenching machine used on the ground for basic engineering. Along the peripheral axis of the deep excavation project, a long and nar...

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Problems solved by technology

[0005] In summary, the existing problems in the prior art are: in the prior art, although the diaphragm wall is widely used in construction engineering, more and more construction units only carry out the diaphragm wall construction according to the standard (national standard or industry standard). For the construction of the construction site, the environment of the construction site is relatively complicated and the project cannot be fully implemented according to the standard, which will increase the construction difficulty of the construction personnel and increase the construction cost

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