Fabricated underground cylinder structure and construction method thereof
A construction method and prefabricated technology, applied to underwater structures, infrastructure engineering, artificial islands, etc., can solve problems such as high comprehensive cost, long construction period, and high construction difficulty, so as to reduce construction resistance and increase construction speed , the effect of reducing the impact on the surrounding environment
Active Publication Date: 2022-03-01
WUHAN SURVEYING GEOTECHN RES INST OF MCC
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Problems solved by technology
However, this construction method also has major disadvantages, such as deeper excavation depth, higher construction difficulty, longer construction period, higher comprehensive cost, etc. Therefore, it is necessary to develop a new type with strong bending resistance, The construction method with fast construction speed and low cost will produce better economic and social benefits
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[0044] The present invention will be further described below in conjunction with drawings and embodiments. attached Figures 1 to 10 All are drawings of embodiments, drawn in a simplified manner, and are only used for the purpose of clearly and concisely illustrating the embodiments of the present invention. The following technical solutions shown in the drawings are specific solutions of the embodiments of the present invention, and are not intended to limit the scope of the claimed invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0045] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right" etc. are based on those shown in the accompanying drawings. Orientation or posit...
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The invention provides a fabricated underground cylinder structure and a construction method thereof. The cylinder structure comprises a coping beam, an outer layer cylinder structure defined by cement soil mixing piles in a mutually engaged mode, a lining wall and a static pressure pile sinking supporting structure embedded in the outer layer cylinder structure. According to the static pressure pile sinking supporting structure, a trapezoidal precast pile is statically pressed in a cement soil mixing pile; the construction method comprises the specific construction steps of design of a trapezoidal precast pile, construction of an annular sleeve of a cement-soil mixing pile, arrangement of a trapezoidal precast pile positioning device, static pressure pile sinking of the trapezoidal precast pile, bar planting and grouting of a precast pile through round hole, construction of a precast pile top pressing top beam, earth excavation, construction of an underground cylinder inner cylinder structure and structure bottom sealing. Through pre-stirring of the cement-soil stirring piles on a soil body, penetration of the prefabricated piles is smoother, it is guaranteed that the prefabricated trapezoidal piles meet tight attachment, meanwhile, the good water stopping effect is achieved, the coping beams are arranged at the tops of the piles to buckle the cylinder main body structure, and the good anti-floating effect is achieved.
Description
technical field [0001] The invention relates to a construction method for constructing an underground cylindrical structure by means of assembly, which is mainly used for the construction of underground space structures such as cylindrical underground deep well parking garages, underground working wells, and underground storage. Background technique [0002] With the continuous acceleration of urban construction, the available ground space is becoming more and more tense, which makes the underground space with a low degree of development and a large reserve come into people's view. At present, the development of underground space has become an important trend of current urban development. Urban underground projects include underground parking garages, underground storage, working wells, etc. Most of the existing underground structures use cylindrical structures. In terms of construction, the existing foundation pit support measures are mainly implemented by cast-in-place con...
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IPC IPC(8): E02D29/045E02D5/46E02D31/12
CPCE02D29/045E02D29/04E02D5/46E02D31/12
Inventor 丁洪元刘绍卿陈斌于沉香谢亮李春磊杨光煜尤涵锐吴琪
Owner WUHAN SURVEYING GEOTECHN RES INST OF MCC