Test apparatus and test method for simulating tunnel-side slope system under effects of rainfall and earthquake

A test device and model test technology, applied in the direction of using optical devices, measuring devices, soil material testing, etc., can solve problems such as tunnel structure damage, and achieve the effect of real-time monitoring

Pending Publication Date: 2018-12-07
CHINA UNIV OF MINING & TECH
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Problems solved by technology

The damage to the tunnel structure was caused by the s

Method used

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  • Test apparatus and test method for simulating tunnel-side slope system under effects of rainfall and earthquake
  • Test apparatus and test method for simulating tunnel-side slope system under effects of rainfall and earthquake
  • Test apparatus and test method for simulating tunnel-side slope system under effects of rainfall and earthquake

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0044] (1) Simulate the changes of the displacement field and stress field of the slope body during the tunnel excavation process.

[0045] Start the tunnel excavation device, excavate to the predetermined excavation position of the tunnel, use the high-speed digital camera non-contact measurement system to take pictures of the process of deformation and destruction of the slope, and take pictures, and then use image processing software to analyze and analyze the pictures. Relationship between tunnel excavation location and slope instability. The whole process can be monitored from time to time through mobile APP and networked computer under the action of high-definition camera.

[0046] (2) A...

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Abstract

The invention discloses a test apparatus and test method for simulating a tunnel-side slope system under effects of rainfall and earthquake. The apparatus includes: an artificial rainfall test system,an underground system, a uniform airbag loading system, a model test box, an earthquake action platform, and a test monitoring system; a test object is placed on the bottom of the uniform airbag loading system in order to apply a load to the test object thereby; the test object is arranged in the model test box; the artificial rainfall test system can simulates rainfall, wherein a water outlet end is located on the uniform airbag loading system; the earthquake action platform is disposed on the bottom of the model test box. By means of model test with the test apparatus, instability mechanismof the tunnel-side slope system under effects of rainfall, underwater seepage, earthquake and the like and coupled effects thereof can be discovered. The apparatus and method can supply effective basis for tunnel construction, disaster prevention and control of side slopes, and monitoring, management and prediction.

Description

technical field [0001] The invention relates to a test device and method for simulating a tunnel-slope system under the action of rainfall and earthquakes, and belongs to the technical field of tunnel-slope system engineering geological disaster model tests. Background technique [0002] At present, my country is ushering in a new round of large-scale engineering construction peak period, and more and more energy, mining, transportation, water conservancy and national defense civil engineering projects are built in the central and western mountainous areas. However, when building highways and high-speed railways in mountainous areas, it is inevitable to dig tunnels in the mountains, and the entrance and exit sections of tunnels are the weakest places in engineering geology. The excavation of the tunnel disturbs the slope body, which destroys the stress balance state of the slope body, reduces the stability of the slope, and induces a landslide; in turn, the thrust of the lan...

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Application Information

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IPC IPC(8): G01N33/24G01N21/84G01B11/16
CPCG01B11/16G01N21/84G01N33/24G01N2021/0118G01N2021/8411
Inventor 王迎超焦庆磊杨圣奇靖洪文孟波李朝阳王月明
Owner CHINA UNIV OF MINING & TECH
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