A fast and automatic measuring device and application method for mechanical parameters of engineering rock mass

A technology of rock mechanics and automatic measurement, applied in the direction of measuring devices, using stable tension/pressure testing material strength, scientific instruments, etc., can solve problems such as unfavorable TBM construction, long construction time, unfavorable mechanical parameters of tunnel surrounding rock, etc. , to achieve the effect of unmanned testing, avoiding impact, and extensive engineering application prospects

Active Publication Date: 2021-12-03
WUHAN UNIV
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Problems solved by technology

However, this test method requires drilling holes in the surrounding rock of the tunnel, and after drilling, only the parts with complete rock mass and smooth surface are tested; the drilling will take a long construction time, which is not conducive to TBM construction; at the same time, this method is not conducive to Obtain a large number of mechanical parameters of tunnel surrounding rock in different excavation mileages

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  • A fast and automatic measuring device and application method for mechanical parameters of engineering rock mass
  • A fast and automatic measuring device and application method for mechanical parameters of engineering rock mass
  • A fast and automatic measuring device and application method for mechanical parameters of engineering rock mass

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Embodiment Construction

[0066] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0067] Such as figure 1 As shown, a rapid automatic measurement device for mechanical parameters of engineering rock mass, the device is mounted on the position where the TBM equipment is relatively rigid and does not affect normal construction (between the rock wall and the outer wall of the TBM), including penetrometer 1, real-time positioning perception System 2, display 3, hydraulic loading system 4 and control system 5;

[0068] 1. Penetrometer 1, as shown in Figures 3 and 4

[0069] The penetrometer 1 includes a conical indenter 11, a jack 12, a load-bearing base 13, a pressure sensor 14 and a displacement sensor 15;

[0070] The jack 11 includes an upper and lower frame, which is arranged on a load-bearing base 13 , and the ...

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Abstract

The invention provides a fast and automatic measuring device for mechanical parameters of engineering rock mass, which is mounted on TBM equipment and includes a penetrometer, a real-time positioning sensing system, a display, a hydraulic loading system and a control system. The penetrometer includes a conical pressure head, a jack, a load-bearing base, a pressure sensor and a displacement sensor. The penetrometer uses a conical pressure head to contact the rock wall, and obtains pressure and displacement data during the loading process through pressure sensors and displacement sensors. The penetrometer is connected to a hydraulic loading system to provide loading hydraulic pressure; the penetrator, real-time position sensing system, display, and hydraulic loading system are connected to a control system. The present invention can realize automatic test, quickly and automatically measure the load-displacement information of TBM tunnel surrounding rock, thereby converting it into rock mass mechanical parameters, and predict the rock mass characteristics within a certain range in front of the TBM tunnel face, and provide tunnel support theoretical basis.

Description

technical field [0001] The invention belongs to the field of rock mass exploration and testing, and in particular relates to an engineering rock mass mechanical parameter testing device and application method, in particular to a fast and automatic measurement device and application method for surrounding rock mass mechanical parameters during tunnel boring machine (abbreviated as TBM) construction . Background technique [0002] Rock mass mechanical parameters are the direct reflection of rock mass mechanical properties and affect the construction efficiency of TBM. During tunnel construction, the mechanical parameters of the surrounding rock can be quickly and automatically obtained, which can be applied to the support design scheme as soon as possible to ensure construction safety; at the same time, the obtained rock mass mechanical parameters can be used to predict the properties of the rock mass in front of the tunnel face, and provide support for early adoption Provide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/12G01N3/00G01B21/02
CPCG01B21/02G01N3/00G01N3/12
Inventor 谢维强张晓平刘泉声李伟伟
Owner WUHAN UNIV
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