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Excavation and surrounding rock stress and strain monitoring model testing device for rock-soil chamber under complicated conditions, and method thereof

A technology of strain monitoring and surrounding rock stress, which is applied in the direction of applying stable tension/pressure to test the strength of materials, so as to achieve the effect of flexible disassembly and assembly

Inactive Publication Date: 2015-05-13
EAST CHINA UNIV OF TECH
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  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the technical shortcomings and deficiencies of existing chamber surrounding rock stress and strain monitoring means and existing model test devices, and provide a kind of rock and soil body chamber excavation or chamber chamber under complex conditions such as high pressure and high temperature. Surrounding rock stress and strain monitoring model test device and method during temperature and humidity changes

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  • Excavation and surrounding rock stress and strain monitoring model testing device for rock-soil chamber under complicated conditions, and method thereof
  • Excavation and surrounding rock stress and strain monitoring model testing device for rock-soil chamber under complicated conditions, and method thereof

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Embodiment Construction

[0017] Such as figure 1 , 2 As shown, the present invention is realized in this way, a model test device for rock and soil chamber excavation and surrounding rock stress and strain monitoring under complex conditions, the upper surface of the base 1 is fixed and vertically provided with four L-shaped columns 2, pressure plates 3 are arranged between adjacent L-shaped columns 2 to form cuboid cavities, rock and soil samples 7 are filled in cuboid cavities, and two pressure plates 6 adjacent to cuboid cavities pass through bearings. The pressure plate 8 is connected to the horizontal pressure device 4, and the other two pressure plates adjacent to the cuboid cavity are connected to the counter force device 3. The top of the cuboid cavity is provided with a pressure plate, and the pressure plate is provided with a pressure plate to withstand pressure. The vertical pressure device 5 is connected to the plate, and the excavation section of the later chamber is reserved on the pres...

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Abstract

The invention relates to an excavation and surrounding rock stress and strain monitoring model testing device for a rock-soil chamber under complicated conditions, and a method thereof. Four stand columns with L-shaped cross sections are arranged at four corners of the upper surface of a substrate, pressure plates capable of moving horizontally are arranged between adjacent L-shaped stand columns to form a cuboid cavity which is filled with rock-soil test samples. The testing device has the technical effects that the stress, strain and volume change rules of the chamber surrounding rock when a rock-soil chamber is excavated under the complicated conditions of high pressure, high temperature and the like, so that the model testing device can provide scientific base for the design and construction decision of the chamber, and also provides a theoretical basis for the prevention and control of geological disaster during the chamber construction.

Description

technical field [0001] The invention relates to a monitoring model test device, in particular to a test device for indoor simulating the excavation process of rock and soil chambers and real-time monitoring of surrounding rock stress and strain laws under complex conditions such as high pressure and high temperature during underground engineering construction and its methods. Background technique [0002] With the rapid development of our country's economy, the number of excavation chambers is increasing day by day. In the field of transportation, the construction of a large number of special long, deep-buried and complex geological conditions tunnels in the central and western regions of my country; in the field of water conservancy and hydropower, the construction of large-span hydraulic tunnels and underground workshops with large The construction of underground mine tunnels in the mining of mineral deposits; in the field of municipal construction, the construction of dee...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
Inventor 薛凯喜贺其胡艳香杨泽平刘晓东魏永起王胜平刘帅梁海安梁炯丰程丽红侯恒军邹玉亮
Owner EAST CHINA UNIV OF TECH
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