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Drilling hole transverse perforation device of rock destruction characteristic and ground stress parameter measurement

A technique of destructive characteristics and parameter measurement, which is applied in the direction of measuring devices, measurement, strength characteristics, etc., can solve the problems of lack of measured ground stress data, cumbersome test process, long test cycle and other problems in the project, and achieve manpower saving, fast test process and easy operation. easy effect

Inactive Publication Date: 2010-10-20
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

However, due to the high cost of these methods, the long test period, and the cumbersome test process, many projects cannot use the above test methods, resulting in the lack of sufficient measured ground stress data for many projects

Method used

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  • Drilling hole transverse perforation device of rock destruction characteristic and ground stress parameter measurement
  • Drilling hole transverse perforation device of rock destruction characteristic and ground stress parameter measurement
  • Drilling hole transverse perforation device of rock destruction characteristic and ground stress parameter measurement

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0027] Depend on figure 1 , figure 2 , image 3 , Figure 4 It can be seen that a drilling transverse penetration device for measuring rock mass failure characteristics and ground stress parameters consists of a cavity 1, a cone head 2, a backing plate 3, a back pressure pad 4, a movable tongue 5, a pressure hole 6, a bearing It consists of a pressure plate 7, a wiring groove 8, a back pressure hole 9, and a digital displacement sensor 10; the specific connection relationship is: the cavity 1 is a hollow open cylinder, and a pressure hole 6 and a back pressure hole 9 are left in the cavity and the wiring groove 8, the movable tongue 5 is fixed in the cavity through the back pressure pad 4, and the joint is sealed with a rubber ring 11, so that the movable tongue 5 and the cavity form a sealed space, that is, a pressurized cabin; then the digital displacement senso...

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Abstract

The invention discloses a drilling hole transverse perforation device of rock destruction characteristics and ground stress parameter measurement. A cavity is a hollow opening cylinder body, a pressurizing hole, a return pressure hole and a wiring groove are arranged in the cavity, a movable lug is fixed in the cavity through a return pressure pad, a digital displacement sensor is also fixed in the cavity, a pad plate is fixed on the upper parts of the movable lug and the digital displacement sensor through screw threads, a plurality of cone heads with different curvatures are fixed on the pad plate through screws, and a pressure bearing plate is fixed on the cavity through screws. Firstly, an oil pressure pump is used for pressurization through the pressurizing hole, the pressure is relieved through the return pressure hole after the experiment is completed, and the digital displacement sensor transmits the displacement data of the movable lug into a receiver through a data line arranged in the wiring groove. The device has the advantages of convenient use, low cost, precision and high speed. The invention uses ordinary engineering drilling holes, and breaks through the stress area limitation of the Good man jack, so the tested rock is destructed, and the intensity, the deformation destruction parameters and the ground stress parameters of the rock with different depth in weathering zones can be measured.

Description

technical field [0001] The present invention relates to the technical field of in-situ testing of rock mass and in-situ stress testing, and more specifically relates to a drilling transverse penetration device for measuring rock mass failure characteristics and in-situ stress parameters, which is suitable for on-site in-situ testing of rocks. Utilize ordinary engineering drilling, put the probe into any depth of the drilling, and obtain the ground stress parameters and rock mass failure parameters through this device. Background technique [0002] The determination of rock mass mechanical parameters is the premise and basis for judging whether rock mass engineering meets normal use functions, and it is also an important basis for guiding engineering design and safe construction. Experimental research is the most direct method to determine the mechanical parameters of rock mass. It includes field in situ test and indoor test. Due to the existence of lithology and structural...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00G01N3/00
Inventor 李小春崔银祥江振波
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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