A method for detecting cracks in surrounding rock in geotechnical engineering
A technology of geotechnical engineering and detection methods, applied in the direction of measuring devices, radio wave measuring systems, instruments, etc., can solve the problems of high monitoring cost, non-recyclable sensors, poor visibility, etc.
Active Publication Date: 2021-09-14
XIJING UNIV
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Problems solved by technology
[0005] The existing monitoring methods can only determine the location of the cracks in the detection holes, but cannot determine / predict the direction of the cracks between adjacent detection holes and the future development trend of the cracks, and the monitoring results are often fed back in digital form , poor visibility
[0006] At the same time, the current monitoring technology based on acoustic emission usually adopts the method of embedding the sensor in the borehole, which makes the sensor in the hole unrecoverable and the monitoring cost is too high
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[0028] The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0029] Such as figure 1 As shown, a geotechnical engineering surrounding rock crack detection method includes the following steps:
[0030] S1. Open several detection holes in the rock mass according to the preset threshold value;
[0031] S2. Arrange an acoustic emission sensor with a Beidou module in each detection hole (the Beidou module is pasted on the bottom of the acoustic emission sensor and integrated with it), and realize the communication connection between th...
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A method for detecting cracks in surrounding rocks in geotechnical engineering. First, a number of detection holes are opened in the rock mass according to a preset threshold; The communication connection of the data acquisition terminal; finally, based on the data collected by the data acquisition terminal, the location of the rock cracks in geotechnical engineering is determined, and the dynamic curve of rock cracks in geotechnical engineering is drawn based on the data, and the rock cracks in geotechnical engineering are simulated. The construction of the model realizes the analysis and prediction of rock fissures in geotechnical engineering; while the present invention realizes the visualization of detection results, it improves the accuracy of prediction analysis, and the obtained control measures can be simulated and analyzed, so that it can be obtained. gender governance measures.
Description
technical field [0001] The invention relates to the technical field of geotechnical engineering exploration, in particular to a method for detecting fissures in surrounding rocks of geotechnical engineering. Background technique [0002] In nature and practical engineering applications, there are cracks of different geometric shapes inside the rock mass, and there are filling materials with different physical properties and geometric sizes in most of the cracks. Generally, the filling medium is composed of weathering, tectonic and groundwater. Breccia, sand and other low-strength media with loose structure, irregular structure, large porosity, and easy deformation. [0003] The rock masses used in engineering construction are generally complex rock masses with fissures, and the fissures often contain a large amount of filling materials of different properties. After the caverns are excavated in the project, there are usually many filling fissures around them. The existence o...
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IPC IPC(8): G01N29/04G01N29/22G01S19/42
Inventor 刘明明
Owner XIJING UNIV