Engineering rock mass mechanical parameter rapid automatic measuring device and application method

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

Active Publication Date: 2020-07-31
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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  • Engineering rock mass mechanical parameter rapid automatic measuring device and application method
  • Engineering rock mass mechanical parameter rapid automatic measuring device and application method
  • Engineering rock mass mechanical parameter rapid automatic measuring device and application method

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Embodiment Construction

[0068] 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.

[0069] Such as figure 1 As shown, a rapid automatic measurement device for mechanical parameters of engineering rock mass is mounted on a 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 a penetrometer 1, real-time positioning sensing System 2, display 3, hydraulic loading system 4 and control system 5;

[0070] 1. Penetrometer 1, as shown in Figures 3 and 4

[0071] 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;

[0072] The jack 11 includes an upper and lower frame, which is arranged on a load-bearing base 13 , and the top surface is ...

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Abstract

The invention provides an engineering rock mass mechanical parameter rapid automatic measuring device which is carried on TBM equipment and comprises a penetrometer, a real-time positioning sensing system, a displayer, a hydraulic loading system and a control system. The penetrometer comprises a conical pressure head, a jack, a bearing base, a pressure sensor and a displacement sensor. The penetrometer is in contact with a rock wall through the conical pressure head, and pressure and displacement data in the loading process are obtained through the pressure sensor and the displacement sensor.The penetrometer is connected to the hydraulic loading system to provide loading hydraulic pressure; and the penetrometer, the real-time positioning sensing system, the displayer and the hydraulic loading system are connected to the control system. Automatic testing can be achieved, the load-displacement information of the TBM tunnel surrounding rock can be rapidly and automatically measured and converted into rock mass mechanical parameters, rock mass characteristics within a certain range in front of the TBM tunnel face are predicted accordingly, and a theoretical basis is provided for tunnel supporting.

Description

technical field [0001] The invention belongs to the field of rock mass exploration and testing, and in particular relates to a testing device and application method for mechanical parameters of engineering rock mass, in particular to a fast and automatic measuring device and application method for mechanical parameters of surrounding rock mass during construction of a tunnel boring machine (abbreviated as TBM). . 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 ado...

Claims

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Application Information

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Patent Type & Authority Applications(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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