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Model experiment device for simulating long-term ground subsidence in dense building complex area

A technology of model experiments and building groups, which is applied in the direction of measuring devices, material inspection products, soil material testing, etc., can solve the problems of not considering the impact of dense building groups on long-term ground settlement, and achieve high fidelity, accurate experimental data, The effect of low experimental cost

Active Publication Date: 2020-07-14
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent is mainly based on the two-dimensional finite element model to study the dynamic load of subway operating trains and the long-term settlement of tunnels. It does not involve the use of model tests to study the long-term ground settlement affected by the operation of karst caves-underground rivers-tunnel groups, nor does it consider dense buildings. Effects of groups on long-term land subsidence

Method used

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  • Model experiment device for simulating long-term ground subsidence in dense building complex area
  • Model experiment device for simulating long-term ground subsidence in dense building complex area
  • Model experiment device for simulating long-term ground subsidence in dense building complex area

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Embodiment

[0059] Such as Figure 1 to Figure 10 As shown, the long-term ground subsidence model experimental device for simulating the dense building complex area affected by the operation of karst caves-underground river-tunnel group includes: multi-model combination system, karst stratum system, tunnel system, dense building complex on the ground, and urban underground river water circulation system , Cave water circulation system, data acquisition system, excitation system, conduction system.

[0060] The multi-model combination system includes a first box body 101 , a second box body 102 , a third box body 103 , and a fourth box body 104 .

[0061] The karst stratum system includes a first soil layer 201 , a second soil layer 202 , a third soil layer 203 , a fourth soil layer 204 , and a cave soil layer 205 .

[0062] The tunnel system includes a first road tunnel 301 , a second road tunnel 302 , a third road tunnel 303 , and a subway tunnel 304 .

[0063] Concentrated buildings o...

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Abstract

The invention relates to a model experiment apparatus for simulating ground long-term settlement of dense building group districts influenced by karst cave-underground river-tunnel group operation, and belongs to the technical fields of city underground engineering disaster prevention and disaster mitigation as well as ground settlement geological disaster. The model experiment apparatus comprisesa multi-model combination system, a karst stratum system, a tunnel system, a ground dense building group, a city underground river water circulation system, a karst cave water circulation system, a data acquisition system, a shock excitation, and a control system. The apparatus simulates influences of vehicle vibration load on ground long-term settlement during common operation of road tunnel group and subway tunnel in the dense building group district, simulates influences of tunnel group operating vehicle vibration load on soil long-term settlement under effects of city underground rivers,and simulates influences of tunnel group operating vehicle vibration load on soil long-term settlement under effects of karst caves. The apparatus has the characteristics of high environment simulation fidelity, accurate experiment data, and low experiment cost, and can be used for all-weather observation of slow deformation process of ground long-term settlement.

Description

technical field [0001] The invention belongs to the technical field of urban underground engineering disaster prevention and mitigation and land subsidence geological disasters, and in particular relates to a long-term ground subsidence model experimental device for simulating the impact of the operation of karst caves-underground rivers-tunnel groups in dense building complex areas. Background technique [0002] With the development of urban rail transit network construction, there are more and more superimposed urban subway tunnels and urban underground highway tunnels operating in my country's megacities. The urban dense building complex area has a large population and often integrates commerce, financial trade, and entertainment. It is a gathering point for urban people, and it is also an area where urban subway tunnels and urban underground highway tunnels are most frequently operated. Due to the long-term impact of subsidence of foundation soil caused by train vibratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/00G01N33/24
CPCG01C5/00G01N33/24
Inventor 邹宝平易建孟钱向伟罗战友冯昱李健胡斌武刘静娟杨建辉陶燕丽刘长江
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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