Real 3D physical simulation system and test method for the influence of fault dislocation on tunnel operation
A technology of fault dislocation and three-dimensional physics, which is applied in the field of three-dimensional physical simulation system, can solve the problems of not considering the influence of true three-dimensional stress, insufficient rigidity of the device, and lateral rotation of the model test device, so as to save space, prevent offset and reverse effect
Active Publication Date: 2022-05-27
SHANDONG UNIV
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[0004] In the patent No. CN 201510200464.1, the patent name is: A pressurized strike-slip fault dislocation simulation device and simulation experiment method discloses a simulation device, which can simulate fault dislocation under the action of gravity stress , does not consider the influence of the initial structural stress, which is inconsistent with the actual engineering geological conditions, and cannot simulate the impact of fault dislocation on the safety and stability of the tunnel under the real true three-dimensional initial stress environment
[0005] A test device is disclosed in the patent No. CN 201620006494.9 and the patent name is: Destruction test device for simulating tunnel crossing obliquely staggered active faults. The influence of initial in-situ stress does not match the actual engineering geological conditions, and it is impossible to simulate the impact of fault dislocation on tunnel operation safety and stability under the real true three-dimensional initial in-situ stress environment
[0006] In the patent No. CN 201720049666.5, the patent title is: A test chamber device for testing tunnel normal fault stick-slip dislocation patent discloses a test chamber device, which includes a simulation test chamber and a jack, capable of simulating high seismic areas Aiming at the anti-seismic and shock-absorbing effect of the fault zone, the model test device is prone to sideways during the fault dislocation process, and it cannot simulate the influence of fault dislocation on the safety and stability of the tunnel under the real true three-dimensional initial stress environment.
[0007] In the patent No. CN 201810860128.3, the patent name is: Tunnel fault dislocation model test device and dislocation model test system discloses a model test system, which consists of an outer box, an inner box, a loading device and a measuring device. The thrust is applied to the inner box to simulate fault dislocation, and the force and deformation law of the tunnel under the fault dislocation state can be obtained, but the influence of inclined structural faults cannot be considered, and the impact of fault dislocation under the real true three-dimensional initial stress environment cannot be simulated. Influence of tunnel operation safety and stability
[0008] In the patent No. CN 201910049175.4, the patent name is: A three-dimensional similar physical test device for simulating fault dislocation discloses a test device, which uses a transparent acrylic board rectangular box as a loading reaction device to simulate shallow buried Fault dislocation, but the device is not rigid enough to simulate the influence of deep faults, nor can it simulate the impact of fault dislocation on tunnel operation safety and stability under the real true three-dimensional initial stress environment
[0009] In the patent No. CN 201911125822.1, the patent title is: Test device and method of use for simulating the mechanism of active fault damage to tunnel damage, a test device is disclosed, which can simulate the influence of fault dislocation on tunnel damage under the action of its own weight, but The influence of the initial structural stress is not considered, which is inconsistent with the actual engineering geological conditions, and it is impossible to simulate the impact of fault dislocation on the safety and stability of the tunnel under the real true three-dimensional initial stress environment.
[0010] (7) In the 9th issue of "Journal of Rock Mechanics and Engineering" in 2008, "Physical Model Test Research on Subway Tunnel Crossing Ground Fissure Zone", a model test device was introduced, which can simulate the influence of ground fissure dislocation on tunnel operation, However, the influence of true three-dimensional initial in-situ stress is not considered, which is inconsistent with the actual engineering geological conditions, and it is impossible to simulate the influence of fault dislocation on tunnel operation safety and stability under the real true three-dimensional initial in-situ stress environment.
[0011] (8) In the 7th issue of "Journal of Tongji University" in 2012, the article "The Influence of Reverse Fault Stick-slip Dislocation on Highway Tunnels" introduced a model test device. The influence of faults with different dip angles on the stability of the tunnel, but the influence of the true three-dimensional initial stress is not considered, which is inconsistent with the actual engineering geological conditions, and it is impossible to simulate the influence of fault dislocation on the safety and stability of the tunnel under the real true three-dimensional initial stress environment.
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[0038] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0039] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the invention clearly dictates otherwise, the singular is intended to include the plural as well, and it should also be understood that when the terms "comprising" and / or "including" are used in this specification, Indicate the presence of features, steps, operations, devices, components and / or combinations thereof;
[0040] For the convenience of description, if the words "up", "down", "left", "right", "front" and "rear" a...
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The invention discloses a real three-dimensional physical simulation system and test method for the influence of fault dislocation on tunnel operation. The system includes a fault dislocation bench system, a fault dislocation jacking system, and a loading and dislocation control system. The fault dislocation bench system is used to accommodate the dislocation model body and acts as a loading reaction device; the fault dislocation jacking system is used to implement fault dislocation, and to ensure that the model body does not torsion and overturn during the fault dislocation process; The dislocation control system is used to load the initial stress on the model body and control the fault dislocation of the model by the fault dislocation jacking system. The invention can simulate the fault dislocation of the deep stratum under complex and high ground stress conditions, truly simulate the influence of the underground fault dislocation on the safe and stable operation of deep tunnels, and provide strong technical support for the safe construction of deep engineering.
Description
technical field [0001] The invention relates to a true three-dimensional physical simulation system and test method used in the fields of hydropower, transportation, energy and mining engineering to simulate the influence of fault dislocation on tunnel operation. Background technique [0002] With the rapid development of society and economy, China has developed into a country with the largest number of tunnels and underground works, the largest in scale and the most diverse structures in the world. In recent years, China's transportation and hydropower construction have developed vigorously, and the center of construction has gradually shifted to the western region with more complex geological conditions. However, the frequent earthquakes, high seismic intensity and complex geological structure in the western region can easily lead to slip and dislocation of underground active faults. Therefore, it is necessary to deeply study the influence of complex fault dislocation on t...
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IPC IPC(8): G01M99/00G09B25/04
CPCG01M99/00G09B25/04G01M99/008
Inventor张强勇张瑞新陈卫忠程磊张振杰王鹏飞向文林韩祥范清涵刘磊
OwnerSHANDONG UNIV