Experimental device and method for simulating seismic dynamic response of underground caverns
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, high degree of simulation and low cost
Active Publication Date: 2020-11-27
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 large-scale physical model tests of rock mass dynamics, and aims to solve the problem that the seismic dynamic response of underground caverns cannot be highly simulated, and specifically relates to a test device and method for simulating the seismic dynamic response of underground caverns; wherein, The equipment includes the loading frame, the overlying model and underlying model of the underground cavern, static loading device, dynamic loading device, and measuring device. The vertical load and horizontal load are applied to the overlying model through the static loading device to simulate the in-situ underground The real vertical and horizontal ground stress environment of the cavern, through the dynamic loading device, the ground motion load is applied to the underlying model and then acts on the overlying model to simulate the real ground motion of the in-situ underground cavern, so as to meet the requirements for the underground cavern. Simulation requirements for seismic dynamic response. The invention can realize the high simulation simulation of uniformly loading the ground stress static load and the ground vibration load on the underground cavern, can accurately reflect the in-situ situation, and obtain effective test data.
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