Tunnel step-by-step excavation simulation device and using method

A simulation device, a step-by-step technology, applied in the direction of measuring devices, using stable tension/pressure to test material strength, preparation of test samples, etc., can solve the problem of unrealistic simulation, complicated modeling and analysis steps, and simulation device No issues with entities etc.

Active Publication Date: 2020-06-26
CHINA THREE GORGES UNIV
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Problems solved by technology

It solves the problem that the existing simulation device has no entity and cannot simulate the actual situation. At the same time, the modeling and analysis steps are relatively complicated and require a...

Method used

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  • Tunnel step-by-step excavation simulation device and using method
  • Tunnel step-by-step excavation simulation device and using method
  • Tunnel step-by-step excavation simulation device and using method

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Embodiment Construction

[0033] exist figure 2Among them, (a) figure describes the "V" shape of the rock mass simulation block 2; (b) figure describes the "Z" shape of the rock mass simulation block 2; The linear rock mass simulation block 2, the rock mass simulation block 2 designed with the above two chimeric shapes has a good limit ability when it is in contact with each other, which greatly improves the stability of the overall structure; when pouring the rock mass simulation block 2, one or both of the fitting methods can be selected to prefabricate the pouring formwork of the rock mass simulation block 2.

[0034] Combine below Figure 1~Figure 3 Embodiments of the present invention will be further described.

[0035] A step-by-step excavation simulation device for a tunnel and its use method, comprising a simulated tunnel 1 made of tempered glass, the interior of the simulated tunnel 1 is arranged in a predetermined excavation manner with "V"-shaped embeddings for simulating the strength of ...

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Abstract

The invention discloses a tunnel step-by-step excavation simulation device and a using method. The tunnel step-by-step excavation simulation device comprises a simulation tunnel of a hollow structure,and a rock mass simulation layer for simulating protolith strength is arranged in the simulation tunnel; an electromagnetic layer is arranged at the affected boundary in sections during blasting, anda magnet is arranged at the boundary of the simulation tunnel and the rock mass simulation layer and matched with the electromagnetic layer to work to form a blasting simulation device; the organic glue is filled between the contact surfaces; the expansion cement is filled in rock mass gaps outside the organic glue, so the rock mass is stressed; a pressure sensor, a strain gauge and a multi-pointdisplacement meter are arranged at the selected monitoring position; meanwhile, the sound wave instrument is used for monitoring the internal integrity; the monitoring device is used for monitoring data such as stress, deformation, strain, creep deformation and displacement of other positions of the simulated tunnel under the influence of disturbance generated in the whole simulated excavation process. The method can provide a basis for determining the rationality of design parameters and determining whether the selected construction method can ensure the stability of the tunnel surrounding rock, and has wide engineering practice significance and application prospects.

Description

technical field [0001] The invention belongs to the field of tunnel stress simulation experiments, and in particular relates to a step-by-step tunnel excavation simulation device and a use method. Background technique [0002] With the continuous increase of my country's population, the acceleration of urbanization and the continuous improvement of people's material living standards, many large cities have gradually experienced difficulties in housing and travel, so people's use of space has gradually shifted from above ground to underground. At the same time, in the process of the gradual development of my country's transportation network, it also "passes mountains and rivers", often building tunnels through mountains to facilitate road construction. Therefore, my country's underground engineering construction has entered a prosperous period at present. There are several or even dozens of projects under construction in underground engineering such as railway tunnels, high-s...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N3/10G01N3/12G01N1/28G01D21/02
CPCG01N33/24G01N3/10G01N3/12G01N1/28G01D21/02
Inventor 刘杰罗越文高素芳谢晓康杨浩宇杜卓兴韩绍康莫承林
Owner CHINA THREE GORGES UNIV
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