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Weak fractured rock mass tunnel hole wall stabilizing device and surrounding rock loosening circle detecting device

A technology of surrounding rock loosening rings and stabilizing devices, which is applied in the directions of measurement, wellbore/well components, sealing/isolation, etc., and can solve the problems that drilling holes cannot be reused

Active Publication Date: 2022-04-19
SHIJIAZHUANG TIEDAO UNIV
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Problems solved by technology

[0006] In view of this, the present invention proposes a tunnel wall stabilization device for weak and broken rock mass and a detection device for surrounding rock loose circles, aiming to solve the problem that boreholes cannot be reused

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  • Weak fractured rock mass tunnel hole wall stabilizing device and surrounding rock loosening circle detecting device
  • Weak fractured rock mass tunnel hole wall stabilizing device and surrounding rock loosening circle detecting device
  • Weak fractured rock mass tunnel hole wall stabilizing device and surrounding rock loosening circle detecting device

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Embodiment Construction

[0024] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided in order to make the present application more thorough and complete, and to be able to communicate the scope of the present application completely to those skilled in the art.

[0025] The terms used in this application are for the purpose of describing a particular embodiment only, and are not intended to limit the present application. The singular forms used in this application and the appended claims are also intended to include most forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" as used herein ...

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Abstract

The invention relates to the technical field of tunnel rock mass detection, and particularly discloses a soft broken rock mass tunnel hole wall stabilizing device and a surrounding rock loosening circle detecting device. The device comprises at least two holding airbags; the first air pipe is communicated with each holding air bag and is used for inflating each holding air bag; at least one telescopic air bag, wherein the telescopic air bag is arranged between every two adjacent holding air bags; the second air pipe is communicated with the telescopic air bags and used for inflating and deflating the telescopic air bags, and the telescopic air bags are used for stretching during inflation to fill the test space between the two adjacent holding air bags and contracting during deflation to expose the test space between the two adjacent holding air bags. According to the invention, by keeping the air bag and the telescopic air bag, the stability of the hole wall of the test hole is kept, a sectional type sound wave test method is adopted, and each fixed-depth hole wall is not supported by the air bag only in the test time period of the section, so that the repeated use of a single hole in the weak broken rock mass tunnel surrounding rock loose circle test is realized.

Description

Technical field [0001] The present invention relates to the field of tunnel rock mass detection technology, in particular, to a weak broken rock mass tunnel hole wall stabilization device and a surrounding rock loose circle detection device. Background [0002] The development of the loose rock around the tunnel of weak fractured rock mass is affected by the construction process and has a significant spatio-temporal effect. The range of the loose coil of the surrounding rock of the tunnel is an important parameter for determining the parameters of the tunnel support, and its development law is an important basis for clarifying the mechanism of progressive destruction of the surrounding rock. [0003] At present, the single-hole sound wave method is used in China for the surrounding rock loosening circle test, and the water is used as a couplant during the test, and the sound wave is refracted between the water and the rock wall to form a glide wave along the interface between th...

Claims

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Application Information

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IPC IPC(8): E21B33/122E21B33/124E21B49/00E21B47/06
CPCE21B33/122E21B33/1243E21B49/00E21B47/06
Inventor 郭小龙樊祥森陈宇冰刘志春孙星亮朱永全朱正国孙明磊李新志樊浩博高琳韩伟歌
Owner SHIJIAZHUANG TIEDAO UNIV
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