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Tunnel water outburst and mud outburst model test device and method

A model test device and tunnel model technology, which is applied in the direction of measuring device, fluid dynamics test, machine/structural component test, etc., to achieve the effect of simple and stable structure and high universal applicability

Active Publication Date: 2022-02-01
SHIJIAZHUANG TIEDAO UNIV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a tunnel water and mud inrush model test device and method, which effectively solves the problem that the existing tunnel water and mud inrush process can only be analyzed by ANSYS finite element, which cannot Carry out physical research tests on the tunnel water and mud inrush process through model tests, change the environment of the tunnel model, and effectively support the soil

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  • Tunnel water outburst and mud outburst model test device and method
  • Tunnel water outburst and mud outburst model test device and method
  • Tunnel water outburst and mud outburst model test device and method

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Embodiment 1

[0039] Embodiment 1. The present invention is a tunnel water and mud inrush model test device and method, including a support base 1. The support base 1 is placed on the ground to provide a fixed support foundation for subsequent structures. The support base 1 The upper end is fixedly connected with a feeding bin 2, and the upper end of the feeding bin 2 is fixedly connected with a feeding frame 3, through which the feeding frame 3 can inject soil into the inside of the feeding bin 2, and the feeding bin 2 Built-in supporting mold 4, said supporting mold 4 and said feeding bin 2 have clearance fit, said front end is detachably connected with tunnel model 5, when said supporting mold 4 is placed inside said feeding bin 2 At this time, inject soil into the gap between the support mold 4 and the feeding bin 2 through the feed frame 3, and cover the support mold 4 with soil quality;

[0040] The inner wall of the feeding bin 2 is fixedly connected with a punching air bag 6, and th...

Embodiment 2

[0043] Embodiment 2, on the basis of Embodiment 1, in the process of spraying water on the soil, there will be water remaining in the soil, resulting in the problem that the water body cannot flow smoothly and cannot be shot to the outside world smoothly, so this embodiment Provide a structure for diverting water in the soil to ensure that the water body flows smoothly in the soil. Specifically, a number of upper permeable holes 11 are provided on the left and right sides of the lower end of the feeding bin 2. The The lower end of the support base 1 is provided with a lower permeable hole 12 matching the permeable hole. In order to ensure that the water in the feeding bin 2 will not flow around, the upper permeable hole 11 is close to the tunnel model. 5 One side is fixedly connected with a water retaining strip, the water retaining strip prevents the water from flowing around, and the lower end of the support base 1 is fixedly connected with a liquid return chamber 13, and wat...

Embodiment 3

[0044] Embodiment 3, on the basis of Embodiment 1, due to the different temperature environment, it will affect the tunnel water and mud inrush phenomenon. In order to create different temperature environments, the temperature environment of the tunnel model 5 is changed, so this The embodiment provides a structure for adjusting and controlling the temperature environment. Specifically, the upper end of the support base 1 is fixedly connected with a thermal insulation cover 14 sleeved outside the feeding bin 2. The thermal insulation cover 14 It is a double-layer insulation structure, and the above-mentioned feeding bin 2 is covered by the above-mentioned insulation protective cover 14, the described feeding bin 2 is protected, and the temperature environment near the described feeding bin 2 is controlled at the same time, Reduce the exchange of the temperature near the feeding bin 2 and the external environment, ensure that the feeding bin 2 is in a stable temperature environm...

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Abstract

The invention provides a tunnel water outburst and mud outburst model test device and method, and solves the problems that an existing tunnel water outburst and mud outburst process is analyzed only through an ANSYS finite element, and an entity research test cannot be performed on the tunnel water outburst and mud outburst process through a model test. The device comprises a supporting base, the upper end of the supporting base is fixedly connected with a feeding bin, the upper end of the feeding bin is fixedly connected with a feeding frame, a supporting mold is arranged in the feeding bin and is in clearance fit with the feeding bin, the front end of the supporting mold is detachably connected with a tunnel model, and the inner wall of the feeding bin is fixedly connected with a stamping air bag; the stamping air bag is connected with an air supply pump fixedly connected to the feeding bin, the side, close to the supporting mold, of the pressurizing air bag is fixedly connected with a plurality of soft water spraying pipes, the soft water spraying pipes communicate with a water supply pipe fixedly connected to the upper end of the feeding frame, and the water supply pipe is connected with an external water supply device; and the device is exquisite in structure and has very high practicability.

Description

technical field [0001] The invention relates to the technical field of tunnel construction simulation, in particular to a tunnel water and mud inrush model test device and method. Background technique [0002] During the construction and use of tunnels, there are serious risks of geological disasters such as water and mud inrush, especially in deep tunnels. Water and mud inrush disasters are often characterized by suddenness, large flow, and high water pressure. Then submerge the tunnel, interrupt the construction, and cause heavy casualties and economic losses, and even some projects are forced to stop construction or reroute. Scholars at home and abroad have done a lot of theoretical and model test research on the disaster-causing mechanism of water and mud inrush disasters and the change characteristics of displacement field, stress field and seepage field in the process of catastrophe evolution. There are still few researches on the influence of the compressive strength...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00G01M10/00
CPCG01M99/00G01M10/00
Inventor 朱正国丁祥樊浩博白子斌邓寿军郭佳奇黄鑫高新强曾伟峰韩智铭孙明磊
Owner SHIJIAZHUANG TIEDAO UNIV
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