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Movable door device for measuring soil arching effect of overlapped tunnel and test method

A technology of soil arch effect and movable door, which can be used in measuring devices, soil material testing, and optical devices, etc., and can solve the problem of inability to realize stepless adjustment of width.

Pending Publication Date: 2020-07-03
SOUTHWEST JIAOTONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this width change is fixed, it can only be an integer multiple of the width of the demolition board, and the stepless adjustment of the width cannot be realized

Method used

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  • Movable door device for measuring soil arching effect of overlapped tunnel and test method
  • Movable door device for measuring soil arching effect of overlapped tunnel and test method
  • Movable door device for measuring soil arching effect of overlapped tunnel and test method

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Embodiment Construction

[0033] The present invention will be described in detail below with reference to the accompanying drawings and examples. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, those skilled in the art will recognize that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield a still further embodiment. Therefore, it is intended that the present invention includes such modifications and variations as come within the scope of the appended claims and their equivalents.

[0034] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top", "bottom", etc. are based on the orienta...

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Abstract

The invention provides a movable door device for measuring the soil arching effect of overlapped tunnels and a test method. The movable door device comprises a box body, a movable door, a tunnel modeland a three-dimensional scanner. The movable door is horizontally arranged in the box body, a plurality of soil pressure boxes are arranged on the movable door, a space defined by the upper surface of the movable door and the box body is used for containing a soil body, and the tunnel model is arranged in the soil body. The movable door can move. The movable door moves to enable the soil body tocollapse, and the soil pressure box can measure the vertical soil pressure of the soil body. The three-dimensional scanner is arranged in the box body and located below the movable door, and the three-dimensional scanner can measure the arch axis of the soil body forming the soil arch effect. By means of the movable door device and the test method, the soil arching effect generated by the spaces with different widths of the overlapped tunnels can be tested.

Description

technical field [0001] The invention relates to the field of civil engineering geotechnical engineering test devices, in particular to a movable door device and a test method for measuring the soil arch effect of overlapping tunnels. Background technique [0002] The "soil arch effect" caused by the support structure is the most critical problem in underground engineering, which widely exists in underground engineering, such as tunnel excavation, foundation pit support and other projects. Its essence is a phenomenon of stress transfer. This stress transfer is realized due to the uneven deformation of the soil under external forces. [0003] In tunnel engineering, the tunnel load mainly comes from the action of the surrounding rock. Under the action of load or self-weight, the soil is compressed and deformed, resulting in uneven settlement, resulting in mutual "wedging" between soil particles, so A "soil arch effect" is produced in a certain range of soil layers. Due to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N3/08G01L5/00G01B11/24G01B11/16
CPCG01B11/16G01B11/24G01L5/0028G01N3/08G01N33/24G01N2203/0019G01N2203/0075G01N2203/0298G01N2203/0676G01N2203/0682
Inventor 封坤有智慧蒲东均李坤哲陈健张冀徐凯杨仁杰
Owner SOUTHWEST JIAOTONG UNIV
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