Loosing circle testing system and method based on coupling effect of rock water in drill holes of soft rock
A testing system and technology in drilling, which is applied in the direction of analyzing solids, instruments, and analysis materials using sound waves/ultrasonic waves/infrasonic waves. It can solve the problems of ineffective water coupling and easy hole collapse in the sound wave method, and achieve flexible testing depth. , avoid water slurry mixed flow, control the effect of test depth
Active Publication Date: 2016-04-06
SHANDONG UNIV OF SCI & TECH
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[0004] In order to solve the problem that the acoustic wave method is prone to hole collapse during the soft rock drilling test process and cannot perform effective water coupling due to the difficulty in sealing water during the roadway top test process, the present invention proposes a method based on soft rock drilling. Surrounding rock loose circle test system and method based on inner rock water coupling effect, this test system can avoid the occurrence of hole collapse in the soft rock drilling test process, and has stronger applicability and safety
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[0037] The present invention will be described in detail below in conjunction with specific embodiments.
[0038] In the present invention, the surrounding rock loosening ring test system based on the coupling effect of rock and water in soft rock drilling mainly consists of a hole sealing device, a grouting device, a water injection device, a test device and a control device, wherein the water injection device is an existing A conventional device in the technology, its role is to provide water to the water injection hose in the test device, the grouting device is combined with figure 1 and Figure 4 As shown, a slurry tank 28 is included, a feed inlet 27 and a water inlet are provided at the top of the slurry tank 28, and the water inlet is connected to the water injection device 23 by a pipeline 26, and a water inlet is provided at the bottom of the slurry tank 28. Outlet 29, the outlet 29 is directly connected to the pipeline and the parts in the test device. Since the mat...
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The invention discloses a loosing circle testing system and method based on a coupling effect of rock water in drill holes of soft rock. The loosing circle testing system comprises a hole sealing device, a grouting device, a water injection device, a testing device and a control device. The testing device comprises a telescopic rod body, a displayer, ultrasonic transmitters, ultrasonic receivers and a stand column used for supporting the telescopic rod body. The ultrasonic transmitters and the ultrasonic receivers are connected to the input end of the displayer through lines and connected to the control device through the output end of the displayer. Detecting rods are connected to the two ends of the telescopic rod body respectively. The heights of the two detecting rods are the same, and the two detecting rods are kept parallel. Each detecting rod is formed by sleeving a plurality of pipe bodies together. One ultrasonic transmitter and one ultrasonic receiver are installed on the head of each detecting rod respectively. The dynamic hole sealing device achieves synchronization of plugging cracks in the holes through grout and coupling of the rock water, and the problem that when top plate surrounding rock is tested, a large amount of water in the drill holes is lost in the testing process, and can not be supplemented in time is solved.
Description
technical field [0001] The invention relates to the technical field of testing loose circles of surrounding rock in tunnel engineering and coal roadway engineering, in particular to a loose circle testing system and method based on rock-water coupling in soft rock boreholes. Background technique [0002] With the development of underground engineering and the advancement of scientific theories, many theoretical results about the loosening range of surrounding rocks have been produced abroad. These results are mainly derived from empirical formulas and related theories, and have certain rationality and applicability. Therefore, the theoretical method for calculating the loose circle of surrounding rock can be further deduced by referring to its conclusion on the range of surrounding rock fracture, but the theoretical method is greatly affected by the complex factors of engineering practice and has great limitations. Based on the on-site measurement of the surrounding rock loo...
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IPC IPC(8): G01N29/04
CPCG01N29/04G01N2291/023
Inventor 刘伟韬穆殿瑞宋文成刘士亮廖尚辉
Owner SHANDONG UNIV OF SCI & TECH
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