A kind of transparent soil model test device and test method of double-hole cross tunnel

A model test device and cross-tunnel technology, which is applied in the field of civil engineering construction, can solve the problems affecting the accuracy of the experiment and the inability to realize the excavation simulation process of the double-hole complex cross-tunnel, so as to save the cost of the experiment and improve the accuracy

Active Publication Date: 2020-04-21
重庆大学建筑规划设计研究总院有限公司
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  • Description
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  • Application Information

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Problems solved by technology

However, the test device cannot realize the excavation simulation process of the double-hole complex intersection tunnel.
Moreover, in order to realize the step-by-step excavation of the tunnel, many drainage pipes need to be buried in the transparent soil, which affects the accuracy of the experiment

Method used

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  • A kind of transparent soil model test device and test method of double-hole cross tunnel
  • A kind of transparent soil model test device and test method of double-hole cross tunnel
  • A kind of transparent soil model test device and test method of double-hole cross tunnel

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Embodiment 1

[0043] see figure 1 and figure 2 , this embodiment discloses a double-hole cross tunnel transparent soil model test device, including a transparent model tank arranged on a test platform 11, and two industrial cameras 1 and two laser emitters 2 arranged outside the transparent model tank.

[0044] The transparent model tank includes deformable side walls, and a bottom plate 7 arranged below the deformable side walls. The bottom plate 7 is vertically connected with the deformable side wall.

[0045] The bottom plate 7 is a rectangular plexiglass plate. The upper surface of the bottom plate 7 is provided with a threaded hole II701.

[0046] The deformable side walls include four square plexiglass side panels 3 and four sealing strips 5 . see Figure 5 , the side edge of the sealing strip 5 is provided with two strip grooves 501 wedged with the side plate 3 . The four side panels 3 are sequentially marked as the first side panel, the second side panel, the third side panel...

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Abstract

The invention provides a di-hole crossing tunnel transparent soil model testing apparatus and a testing method thereof. The testing apparatus comprises a transparent model groove arranged at a test platform, two industrial cameras arranged outside a transparent model groove, and two laser emitters. The transparent model groove comprises flexible sidewalls and a base plate arranged below the flexible sidewalls. While testing, two laser emitters form a speckle tangent plane in the transparent soil, liquid in a hollow cylinder water bag can be discharged according to design, two industrial cameras synchronously take a tangent plane picture in the transparent soil, and a digital image processing technology is used for analysis of the tangent plane picture. The testing method comprises the following steps: designing an experiment scheme, assembling a transparent model groove, making a tunnel model, arranging the industrial cameras, and performing tests. According to the testing apparatus, by changing an angle of the parallelogram transparent soil model groove, the transparent soil model test for crossing tunnel excavation with any angle is realized, and the test cost is saved.

Description

technical field [0001] The invention relates to the field of civil engineering construction, in particular to a transparent soil model test device and a test method for a double-hole cross tunnel. Background technique [0002] With the increase of urban subway construction lines, more and more close-crossing tunnel conditions appear. Due to the influence of environmental restrictions and planning and design, the distance between new tunnels and existing tunnels is getting closer and closer, which makes the project integration more difficult and risky. Therefore, it is of great significance to carry out research on the deformation characteristics of adjacent intersection tunnels. [0003] The basic principle of transparent soil is to use transparent granular materials and pore liquids with the same refractive index to mix and discharge air to obtain transparent saturated soil. The soil has similar geotechnical properties to natural soil. Lasers can be used to form speckle f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 仉文岗陈福勇张艳梅向钰周
Owner 重庆大学建筑规划设计研究总院有限公司
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