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Structure system and method for resisting seismic liquefaction uplifting of subway station

A subway station and anti-seismic technology, which is applied in infrastructure engineering, soil protection, protection devices, etc., can solve problems such as the difficulty of eliminating excess pore water pressure, long duration of liquefaction disasters, uncontrollable uplift of subway stations, etc., and achieve saving The amount of mortar, the effect of strengthening the pull-out resistance and improving the pull-out resistance

Pending Publication Date: 2018-09-07
JINAN RAILWAY TRANSPORT GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0006] (1) Subway stations built on liquefiable sites often adopt foundation replacement and foundation treatment methods, which cannot control the uplift of subway stations caused by liquefaction
[0007] (2) After an earthquake occurs in a saturated sand layer and liquefaction occurs, the excess pore water pressure is difficult to eliminate, and the liquefaction disaster lasts for a long time

Method used

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  • Structure system and method for resisting seismic liquefaction uplifting of subway station
  • Structure system and method for resisting seismic liquefaction uplifting of subway station
  • Structure system and method for resisting seismic liquefaction uplifting of subway station

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[0042] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0043] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0044] As introduced in the background technology, there are deficiencies in the prior art. In order to solve th...

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Abstract

The invention discloses a structure system and method for resisting seismic liquefaction uplifting of a subway station. According to the structure system and the method, the problem of liquefaction uplifting of the subway station in the prior art is solved, and the beneficial effects that the influence of foundation liquefaction on the subway station is relieved, and the anti-seismic property of the subway station is improved are achieved. According to the following scheme, the structure system for resisting seismic liquefaction uplifting of the subway station comprises a plurality of anti-pulling piles for supporting a bottom plate of the subway station, and drainage piles, after the anti-pulling piles penetrate through a liquefiable stratum, the bottoms of the anti-pulling piles are arranged at a non-liquefiable stratum or bed rock; and each drainage pile is arranged between the corresponding two adjacent anti-pulling piles, the tops of the anti-pulling piles support the bottom plateof the subway station, the bottoms of the anti-pulling piles are arranged at the connecting surface of the liquefiable stratum and the non-liquefiable stratum or the bed rock, and pore water in the liquefiable stratum is drained out of the ground through the drainage piles.

Description

technical field [0001] The invention relates to the field of subway and tunnel engineering, in particular to a structural system and method for anti-seismic liquefaction and flotation of a subway station. Background technique [0002] The subway has become an indispensable means of transportation in large and medium-sized cities, and the construction of the subway is also the most effective and direct measure to solve urban congestion. According to the "2016 Statistics and Analysis Report on Urban Rail Transit" released by the China Urban Rail Transit Association, by the end of 2016, a total of 30 cities in mainland China had opened urban rail transit operations, with a total of 133 lines and a total length of 4152.8 kilometers. Among them, the subway is 3168.7 kilometers, accounting for 73.7%. At the same time, a total of 58 cities' urban rail network has been approved, the scale of urban rail under construction and planning has been further expanded, investment has contin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/12E02D27/32E02D27/12E02D3/10
CPCE02D3/10E02D3/106E02D27/12E02D27/32E02D31/12
Inventor 张西文修春海李中会孙崇芳司炜
Owner JINAN RAILWAY TRANSPORT GRP CO LTD
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