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Pre-drilling in-situ rock mass combined measurement device and measurement method

A measuring device and combined technology, which is applied in the direction of measuring device, testing material strength by applying stable shear force, testing material strength by applying stable tension/compression, etc., can solve single test items and rock and soil original state indicators The evaluation is one-sided and the shear strength of rock mass cannot be obtained, etc., so as to achieve the effect of simple operation and wide application

Active Publication Date: 2019-01-11
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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Problems solved by technology

However, the existing in-situ test methods have too many test items and cannot obtain the shear strength and deformation modulus of rock and soil at the same time, making the evaluation of the original state index of rock and soil too one-sided
For example, the static load test is applied to the soil test, and the mechanical parameters of the soil can be obtained by bringing the measured data into the empirical formula to calculate; the cross plate shear test can only measure the shear strength of soft soil, and cannot describe the Mechanical properties of soil mixture; side pressure test can only measure the curve of pressure and rock volume change, but cannot obtain the shear strength of rock mass

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  • Pre-drilling in-situ rock mass combined measurement device and measurement method

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer definition of the protection scope of the present invention, below in conjunction with the accompanying drawings and specific implementation The method will describe the present invention in detail. see Figure 1 to Figure 5, shows the pre-drilled in-situ rock mass combined measurement device of the present invention.

[0034] The pre-drilled in-situ rock mass combined measurement device includes an auxiliary device 1, a shear measurement device 2, a compression measurement device 3 and an adapter 4, and the shear measurement device 2 is lowered to the bottom of the hole for the in-situ rock mass The deformation modulus and shear strength are measured, and the compression measuring device 3 is lowered to the bottom of the hol...

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Abstract

The invention provides a pre-drilling in-situ rock mass combined measurement device and measurement method. The device comprises an auxiliary device, a shearing measurement device, a compression measurement device and an adapter, wherein the auxiliary device is used for providing a power source to the shearing measurement device and the compression measurement device, and processing acquired measurement data; the shearing measurement device is arranged at the lower end of the compression measurement device; and the adapter is arranged at the top end of the shearing measurement device, and is arranged in the compression measurement device. Therefore, the device can be used for measuring the shear strength and deformation modulus of rock mass at the same time, and measuring the tensile strength of the rock mass; sufficient power can be applied to the measurement device by loading a hydraulic cylinder, so that the measurement device is applicable to parameter measurement of soft stratum engineering and hard rock stratum engineering, and therefore, safe and reliable measurement device and measurement method are provided to the field of mine roadway engineering.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering investigation, in particular to a pre-drilled mine in-situ rock mass combined measurement device and measurement method. Background technique [0002] In the field of geotechnical engineering investigation, the shear strength, deformation modulus and compressive strength of rock and soil are important parameters for evaluating the stability of rock and soil structures. Especially in the control and treatment of surrounding rocks in mine roadways, with the continuous increase of mining scale and mining depth, mining conditions continue to deteriorate, the geomechanical environment of mine roadways is becoming more and more complex, underground engineering disasters occur frequently, and the stability control of roadway surrounding rocks Therefore, being able to correctly and reasonably evaluate the stability of surrounding rock in mine roadways can effectively prevent the occurrenc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N3/12G01D21/02
CPCG01D21/02G01N3/12G01N3/24G01N2203/0019G01N2203/0025G01N2203/0048
Inventor 钟自成张幼振邵俊杰陈盼张宁李旺年
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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