Novel grouting experiment device for fractured rock mass microorganism and experiment method thereof

A technology of cracked rock mass and test device, which is applied in the field of grouting of cracks in geotechnical engineering, can solve the problems of small sample size and complex device structure, and achieve the effects of small slurry viscosity, good test effect and simple structure.

Inactive Publication Date: 2019-01-25
CENT SOUTH UNIV
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Problems solved by technology

[0006] At present, some test devices for rock mass seepage tests and sample preparation methods for rock mass samples have been disclosed, but the sample size is small and the device structure is complicated.

Method used

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  • Novel grouting experiment device for fractured rock mass microorganism and experiment method thereof
  • Novel grouting experiment device for fractured rock mass microorganism and experiment method thereof
  • Novel grouting experiment device for fractured rock mass microorganism and experiment method thereof

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] Such as Figure 1-3 Shown: the present invention provides a novel test device for microbial grouting of fractured rock mass, comprising a grouting top cover 1, a grouting bottom cover 2, a grouting device and a waste liquid collection device, the grouting top cover and the grouting The bottom covers are all fixed by the corresponding fixing device 3, and between the grouting top cover and the corresponding fixing device and between the grouting bottom cover and the corresponding fixing device, there are RSM ultrasonic sensors electrically connected to the RSM ultrasonic rebound detector. The rebound detector receives the probe 4. After the titration is completed, use the RSM ultrasonic rebound detector to measure the filling situation of the sample, that is, monitor in real time before and after each titration, and determine the wave velocity when the water is...

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Abstract

The invention discloses a novel grouting experiment device for fractured rock mass microorganism and an experiment method thereof. The experiment device comprises a grouting top cover, a grouting bottom cover, a grouting device and a waste liquid collecting device, RSM ultrasonic rebound detector receiving probes are respectively arranged between the grouting top cover and a corresponding fixed device and the grouting bottom cover and a corresponding fixed device, and a grouting cavity and an upper flow guiding hole are formed in the grouting top cover; a liquid inlet is formed in the side wall of the grouting top cover, a liquid receiving groove and a lower flow guiding hole are formed in the grouting bottom cover, and a liquid outlet communicated with the lower flow guiding hole and thewaste liquid collecting device is formed in the side wall of the grouting bottom cover. The experiment method comprises the steps of grouting liquid preparation, test piece installment, setting of titration speed and experiment result measuring after different parameters are changed. By adopting the experiment device and the experiment method, the purposes that the experiment result is improved, the experiment cost is reduced, and the device and method are suitable for popularization to conduct experiment study are achieved.

Description

technical field [0001] The invention relates to the technical field of crack grouting in geotechnical engineering, in particular to a novel test device and test method for microbial grouting in cracked rock mass. Background technique [0002] In the process of underground space engineering construction and tunnel engineering construction, rock formations with well-developed rock mass cracks are often encountered, which will have a certain impact on the safety and stability of the engineering structure. At the same time, if the cracks in the rock formation contain a lot of silt and water, there will be huge risks of water gushing and mud inrush during construction and operation. However, due to the large particles and weak fluidity of traditional grouting materials, they are not suitable for most rock mass cracks, especially The effect of grouting reinforcement in micro-cracks is not obvious, and there are many potential risks. The processing of these potential risks makes th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16
CPCG01N31/16
Inventor 彭述权陈捷翎樊玲
Owner CENT SOUTH UNIV
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