Shear wall structural member for underground diaphragm wall and construction method
A technology for underground diaphragm walls and structural components, which is applied in basic structure engineering, sheet pile walls, buildings, etc., can solve the problems of large amount of project waste, limited bearing capacity of vertical temporary support system, low work efficiency, etc. Cost, improve construction efficiency, avoid the effect of engineering waste
Pending Publication Date: 2020-10-30
BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST
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Problems solved by technology
[0003] The purpose of the present invention is to provide a shear wall structural member and construction method of an underground continuous wall, so as to solve technical problems such as the limited bearing capacity of the vertical temporary support system, large amount of project waste, and low work efficiency in the reverse method.
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[0020] The present invention integrates the main body shear wall and the foundation continuous wall. The part of the continuous wall below the base is designed as a load-bearing wall, and the part above the base considers the force requirements of the shear wall at the same time, and configures wall reinforcement, reserved door openings and equipment. Hole treatment conditions.
[0021] A shear wall structural member of an underground diaphragm wall, including a straight, L-shaped, T-shaped, and cross-shaped unit member forms, according to different locations, select corresponding unit members of different forms, and arrange them into a continuous wall The discontinuous profile of the continuous wall is called the continuous wall component poured in sections; for the continuous wall components poured in sections, post-cast components are set, and the continuous wall components reserve straight thread joints for the steel bars of the post-cast components.
[0022] The structura...
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The invention discloses a shear wall structural member for an underground diaphragm wall and a construction method. The shear wall structural member comprises linear, L-shaped, T-shaped and cross-shaped member bodies. According to different positions, the member bodies of different forms are selected and arranged to form a discontinuous outline of the diaphragm wall. Post-cast members are arrangedbetween continuous wall members poured in a framing mode, and at the moment, straight thread connectors connected with steel bars of the post-cast members are reserved for the continuous wall members. Firstly, an underground diaphragm wall vertical structural member is constructed, and main body structure laminate is formed at the top of the diaphragm wall through pouring. After the strength of the main body structure laminate reaches a certain strength, a main body structure is constructed synchronously up and down, and over-ground forward construction and underground layer-by-layer construction are synchronously performed and do not affect each other. When underground reverse construction is performed to a foundation bottom elevation, a bottom plate is closed, and a permanent underground structural system is formed. The technical problems that a vertical temporary supporting system of the reverse construction method is limited in bearing capacity, the engineering waste amount is large and the work efficiency is low can be solved.
Description
technical field [0001] The invention belongs to the structural improvement technology of construction engineering construction when the underground part adopts the upside-down method. Background technique [0002] During the construction of the upside-down method, temporary concrete columns, lattice columns or steel pipe columns are set as the temporary vertical support system during the construction stage. During the construction of the permanent structure system, the temporary system is removed or the permanent components are connected with some temporary columns to form a stressed shear wall. This approach has problems such as concentrated arrangement of temporary piles, limited vertical support bearing capacity, heavy workload for removing temporary columns, complicated connection between permanent components and temporary columns, and difficult quality control. In some cases, limited by the bearing capacity of the vertical support, the construction loading of the supers...
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Login to View More IPC IPC(8): E02D5/20
CPCE02D5/20
Inventor 闫朝涛魏文君胡巍巍沙金硕贺广民
Owner BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST