Test device and method for simulating underground cavern earthquake dynamic response
A technology for underground caverns and test devices, which is used in measuring devices, using repetitive force/pulse force to test material strength, and using stable tension/pressure to test material strength, etc., can solve the problem of high seismic dynamic response in underground caverns. Simulation and other problems, to achieve the effect of easy promotion, low cost and simple structure
Active Publication Date: 2020-08-14
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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[0004] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the seismic dynamic response of underground caverns cannot be highly simulated, the present invention provides a test device and method for simulating the seismic dynamic response of underground caverns
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[0039] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.
[0040]The invention provides a test device for simulating the seismic dynamic response of an underground cavern, comprising a loading frame, an underground cavern model, a static loading device, a dynamic loading device and a measuring device; wherein, the underground cavern model includes an overlying model, a lower The underlying model; the overlying model is set on the upper part of the underlying model, and forms a convex structure with the underlying model; the static loading device includes a normal loading device and a lateral loading device; the normal loading device is set on the top of the overlying model, And the upper end of the norm...
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The invention belongs to the field of rock mass dynamics large physical model tests and aims at solving a problem that high-simulation simulation cannot be performed on underground cavern earthquake dynamic response. The invention provides a test device for simulating underground cavern earthquake dynamic reaction. The device comprises a loading frame, an underground cavern overlying model, an underlying model, a static loading device, a dynamic loading device and a measuring device. A vertical load and a horizontal load are respectively applied to the overlying model containing a through holethrough the static loading device so as to simulate real vertical and horizontal crustal stress environments of an in-situ underground cavern; an earthquake dynamic load is applied to the underlyingmodel through the dynamic loading device and then acts on the overlying model to simulate the real earthquake dynamic condition of the in-situ underground cavern, so that the simulation requirement for earthquake dynamic response of the underground cavern is met. According to the invention, high analogue simulation of unified loading of crustal stress static load and earthquake dynamic load can berealized for the underground cavern, the in-situ situation can be accurately reflected, and effective test data can be obtained.
Description
technical field [0001] The invention belongs to the field of large-scale physical model tests of rock mass dynamics, and in particular relates to a test device and method for simulating the seismic dynamic response of underground caverns. Background technique [0002] Underground caverns mainly include three parts: surrounding rock, lining and internal space. The stability of surrounding rock in underground caverns is one of the classic problems in the fields of engineering geology and rock mechanics. Loads are divided into static loads and dynamic loads. The dynamic loads on underground caverns include earthquake loads, blasting loads, and mechanical vibration loads; the dynamic response of underground caverns under seismic loads, that is, their The analysis of relevant data of response characteristics such as deformation and strength has become one of the hot issues in engineering geology, rock mechanics and earthquake engineering. [0003] At present, numerical simulatio...
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IPC IPC(8): G01N3/12G01N3/04
CPCG01N3/04G01N3/12G01N2203/0244G01N3/08G01N3/32G01N33/24G01N2203/0256G01N2203/0075G01N2203/0246
Inventor 郑博文祁生文盛谦黄晓林梁宁郭松峰罗光明汪冲浪
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI