Reinforced foundation pit supporting structure with double-row steel sheet piles and construction method thereof
A foundation pit support and construction method technology, which is applied in foundation structure engineering, sheet pile walls, excavation, etc., can solve problems such as excessive displacement of foundation pits, reduce groundwater levels, improve stability, and reduce soil pressure Effect
Pending Publication Date: 2018-06-15
GUANGZHOU METRO DESIGN & RES INST
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Problems solved by technology
[0004] In order to solve the deficiencies in the prior art, the object of the present invention is to provide a reinforced double-row steel sheet pile foundation pit support structure and its construction method, so that the support structure can be applied to various geological environments, and the support rigidity is large , Good stability, can greatly improve the situation of excessive displacement of foundation pit
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[0042] In order to better understand the above objects, features and advantages of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, a lot of specific details are set forth to facilitate a full understanding of the present invention, and the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly...
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The invention discloses a reinforced foundation pit supporting structure with double-row steel sheet piles and a construction method thereof. The reinforced foundation pit supporting structure comprises a plurality of arched mixing piles, arched opening ends of the arched mixing piles are all arranged in a mode of abutting against the steel sheet piles. The construction method comprises the stepsthat S1, arched stirring piles are constructed to form an arched mixing pile wall; S2, double-row steel sheet piles are constructed and the underground water level of the soil in the middle of the double-row steel sheet piles is lowered to the bottom of the piles; S3, shallow pits are dug between the double-row steel sheet piles, and multiple layers of rigid connectors are arranged in the shallowpits to connect with the double-row steel sheet piles; S4, the shallow pits are backfilled to the top elevations of the pile blocks, and the foundation pits are excavated; and S5, when the foundationpits are completed, the double-row steel sheet piles are removed. According to the reinforced foundation pit supporting structure with the double-row steel sheet piles and the construction method thereof, the support structure can be applied to various geological environments, the support stiffness is high and the stability is good, and the situation that the foundation pit displacement is too large can be improved greatly.
Description
technical field [0001] The invention belongs to the field of geotechnical engineering, and more specifically relates to a reinforced double-row steel sheet pile foundation pit support structure and a construction method thereof. Background technique [0002] With the development of urban high-rise building projects, foundation pit excavation and its support have become important issues, and with the increase of urban development intensity, the reliability of foundation pit support has become one of the key factors affecting the safety of the project. The foundation pit support is to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit. The support, reinforcement and protection measures are adopted for the side wall of the foundation pit and the surrounding environment; it is to protect the safety of the underground main structure construction and the surrounding environment of the foundation pit. , Temporary suppor...
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IPC IPC(8): E02D17/04E02D5/46E02D5/04
CPCE02D5/04E02D5/46E02D17/04
Inventor 王一兆刘成军隋耀华李志利张思远林治平张旭群张煜钊黄博
Owner GUANGZHOU METRO DESIGN & RES INST