Deep-foundation-pit pit-dividing construction rib wall support replacement structure and construction method thereof
A construction method and deep foundation pit technology, which is applied in the direction of infrastructure engineering, underwater structures, artificial islands, etc., can solve the problems of large impact on the surrounding environment, large foundation pit deformation, long construction period, etc., and achieve stable and reliable force transmission, Replacing the support with stable force and convenient construction
A construction method and deep foundation pit technology, which is applied in the direction of infrastructure engineering, underwater structures, artificial islands, etc., can solve the problems of large impact on the surrounding environment, large foundation pit deformation, long construction period, etc., and achieve stable and reliable force transmission, Replacing the support with stable force and convenient construction
CN109723085AActive Publication Date: 2019-05-07CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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[0031] Specific embodiments of the present invention will be described in detail below for further understanding of the present invention.
[0032] The 300mm thick reinforced concrete replacement shear wall 1 is set at the elevation from the basement floor to the basement roof. The horizontal interval and positioning distance of the replacement shear wall are determined according to the concrete support beams of the foundation pit in Area II (to face the foundation in Area II) Pit concrete support beam shall prevail), and the braced shear wall shall be constructed together with the basement structure, and shall be connected with the middle partition wall of the ground connection wall by planting bars. After the rib wall is used to replace the braces, after the construction of the middle floor of the basement in Area I (such as: the floor of B2 floor), the earthwork of the second floor adjacent to Area II can be excavated, and the earthwork in the adjacent area can be excavated ...
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The invention discloses a deep-foundation-pit pit-dividing construction rib wall support replacement structure and a construction method thereof. Reinforced concrete support replacement shear walls with the thickness of 300 mm are arranged at elevation parts from a basement floor to a basement roof, the horizontal spacing and positioning spacing of the support replacement shear walls are determined according to foundation pit concrete supporting beams of an area II, and the support replacement shear walls are constructed with a basement structure, and connected with diaphragm walls and mid-partition walls through embedded steel bars. After rib wall support replacement is adopted, floorslabs in a basement of an area I are constructed, afterwards, two-layer earthwork of the adjacent area IIcan be excavated, the earthwork of the adjacent area can be excavated in advance, and then two pits are subjected to construction operations simultaneously. The construction technology of the deep-foundation-pit pit-dividing construction rib wall support replacement structure is the same as that of a permanent structure shear wall, and rib wall force transfer is reliable. The deep-foundation-pit pit-dividing construction rib wall support replacement structure is suitable for foundation pit engineering of foundation-pit pit-dividing excavation and back-construction.
Description
technical field [0001] The invention relates to the field of construction, in particular to a rib wall replacement structure for deep foundation pit sub-pit construction and a construction method thereof. Background technique [0002] With the process of urbanization in our country, the scale of foundation pit projects is getting larger and larger, the excavation depth is getting deeper and deeper, and the surrounding environment is becoming more and more complex. The excavation depth of the foundation pit has generally reached 20-30 meters, and the excavation area has reached 20,000-60,000 m 2 , based on the strict requirements of foundation pit deformation control, subways, pipelines and other units require the foundation pit to be separated, and the excavation and basement structure construction should be carried out in different areas, which puts forward higher requirements for the design and construction of the foundation pit enclosure; the surrounding environment of th...
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Patent Timeline
07 May 2019
Publication
CN109723085A
- IPC
- E02D29/055
- Inventors
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