Subway station construction method combining small-diameter jacking pipe with double-layer six-hole pile
A construction method and technology for subway stations, which are used in earth-moving drilling, underground chambers, and shaft equipment, etc., can solve the problems of steel pipes affected by self-weight, high jacking force requirements, and impact on pipe jacking accuracy, etc. The effect of reducing the number of pipe jacking and improving construction safety
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] A construction method for a subway station combining small-diameter pipe jacking with double-layer six-hole piles, which specifically includes the following steps:
[0035] (1), after the construction of the enclosure structure 29 at both ends of the underground excavation section is completed, the soil outside the pipe jacking is excavated to 1 meter below the pipe jacking, and pipe jacking equipment is installed in the foundation pit of the working wel...
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