Fabricated underground diaphragm wall capable of being implemented at low clearance and construction method thereof

Abstract

The invention provides a fabricated underground diaphragm wall capable of being implemented at low clearance and a construction method thereof. The fabricated underground diaphragm wall comprises first I-shaped steel components and second I-shaped steel components, male connectors are arranged at the two ends of upper and lower flanges of the first I-shaped steel components, female connectors arearranged at the two ends of upper and lower flanges of the second I-shaped steel components, the first I-shaped steel components and the second I-shaped steel components are arranged adjacently, maleconnectors on one sides of the first I-shaped steel components are inserted into female connectors of the adjacent second I-shaped steel components in the vertical direction, and the first I-shaped steel components and the second I-shaped steel components are nested together. Compared with a cast-in-place underground diaphragm wall, the prefabricated underground diaphragm wall has the advantages of assembly, low mud discharge, high working efficiency, reliable quality and the like; and the steel components adopted for construction can be pulled out and recycled, and energy conservation and consumption reduction are achieved. Construction can be conducted at low clearance, which provides an efficient enclosure structure form for developing underground space under an existing building.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to an assembled underground continuous wall that can be implemented with low headroom and a construction method thereof, which is suitable for foundation pit enclosure structure systems in the fields of underground space development and underground engineering. Background technique [0002] In recent years, the development and utilization of urban underground space in my country has entered a stage of rapid growth. The development and utilization of urban underground space has become an important measure to build a resource-saving and environment-friendly society and realize ecological civilization, and the scale and difficulty of underground space development are increasing. The development of urban deep and large underground spaces involves a large number of deep and large foundation pit projects, and the coastal areas along the river represented by Shanghai, Tianjin, Nanji...

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Problems solved by technology

[0004] However, in the above-mentioned patents, the narrow-wing I-beam and the linear steel plate are arranged independently of each other, and the overall rigidity is weakened, and the calculation of the bending stiffness of the combined structure is not clear, which is not convenient for engineers to apply; the I-beam and the steel plate need to be inserted twice , the construction process increases, the work efficiency decreases, there is no measure for low headroom implementation, and the construction cannot guarantee that the two will fit together; the lock type at the end of the steel plate is not conducive to the nesting construction of super long steel

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