Drilling information collecting method and device based on DIC technology
A technology of information collection and technology, applied in earth-moving drilling, image data processing, measurement, etc., can solve the problem of affecting the accuracy of stope mine pressure analysis, inability to accurately obtain rock mass strength and mechanical parameters, inability to distinguish between primary fractures and Induce cracks and other problems, and achieve the effect of high precision, large amount of information, and accurate measurement
Pending Publication Date: 2019-06-14
SICHUAN UNIV
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Problems solved by technology
At present, the rock formation is usually peeped and analyzed by the borehole peeping instrument to infer the degree of fragmentation of the direct roof and the basic roof, but this method cannot distinguish whether the broken cracks are primary cracks or induced cracks, and cannot accurately obtain the rock mass. Strength and mechanical parameters, etc., which greatly affect the accuracy of stope mine pressure analysis
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[0035] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0036] A drilling information acquisition method based on DIC technology is to take a panoramic camera of the measured holes on the surrounding rock of the roadway according to a certain period of time, and compare and analyze the measured hole images at different times, so that it is not affected by the original cracks. drilling information.
[0037] During specific implementation, the above-mentioned method comprises the following steps:
[0038] S1. Drill a measuring hole with a certain depth on the surrounding rock wall of the roadway, and use a high-pressure air pipe to extend into the bottom of the measuring hole to blow off impurities such as cuttings in the measuring hole to ensure the camera effect.
[0039] S2, placing the panora...
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The invention discloses a drilling information collecting method and device based on a DIC technology, and relates to the technical field of mining. The drilling information collecting method comprises the steps that measuring holes in roadway surrounding rock are subjected to panoramic camera-shooting according to a certain time period, measuring hole images at different time are compared and subjected to analytical calculation, and drilling information which is not affected by initial fissures is obtained. The drilling information collecting device comprises a measuring rod, a cable, a winch, a pulse generator, a host and a panoramic camera, the panoramic camera is fixedly arranged at one end of the measuring rod and connected with the host through the cable, the cable is arranged on a roller of the winch in a wound mode, the winch can be used for triggering the pulse generator, and the pulse generator is electrically connected with the host. By adopting the drilling information collecting method and device, the influences of the initial fissures are avoided, thus the drilling information collected by the drilling information collecting device is more accurate, the pressure of astope mine is accurately analyzed advantageously, and high engineering application value is achieved.
Description
technical field [0001] The invention relates to the field of mining technology, in particular to a method and device for collecting drilling information based on DIC technology. Background technique [0002] In geological exploration, the first-hand underground geological data can be obtained through drilling, and various geophysical information of rock and mineral layers can be obtained. At the same time, the hydrogeological conditions of the groundwater layer can be observed through drilling, and the storage of underground resources can be explored. In the field of mining technology, the accurate collection of drilling data is of great significance for the analysis of stope mine pressure. In the mining of mineral resources, the strength of the mine pressure in the stope mainly depends on the pressure step distance between the direct roof and the basic roof. The size of the pressing step is directly related to the lithology of the overlying strata, the cracking condition a...
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IPC IPC(8): E21B47/002E21B47/04G06T1/00G06T7/33
CPCE21B47/002E21B47/04G06T1/00G06T7/33
Inventor 高明忠王明耀刘强陈海亮陆彤彭高友王飞杨本高
Owner SICHUAN UNIV
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