阅读说明：本技术 一种煤矿井下地质构造钻孔精细化全方位探测方法 (Coal mine underground geologic structure drilling refinement all-dimensional detection method ) 是由 王选琳 周东平 郭臣业 周俊杰 蒋和财 刘柯 刘军 王凯 张翠兰 龚齐森 范彦阳 于 2020-05-14 设计创作，主要内容包括：本发明公开了一种煤矿井下地质构造钻孔精细化全方位探测方法,包括第一步,双法探测：包括采用矿用地质钻孔雷达和钻孔成像仪对同一钻孔进行探测,矿用地质钻孔雷达用于对所需探测的钻孔进行全方位、大范围的异常体探测；钻孔成像仪用于观察记录钻孔孔壁的完整度；第二步,探测结果比对：采用图像比较方式对同一深度的两种探测结果进行连续对比分析,以获得综合探测结果,并预测钻孔前方的地质构造情况。本发明的有益效果是,通过对双法探测获得的两种探测图像进行对比分析,获得钻孔区域准确的地质构成情况,并能准确预测钻孔前方的地质构造情况,其探测范围大、精度高,操作简单,容易掌握,易于进行地质构造的准确分析和预测,应用前景广阔。(The invention discloses a coal mine underground geological structure drilling refinement all-dimensional detection method, which comprises the following steps: the method comprises the steps of detecting the same drill hole by adopting a mining geological drilling radar and a drill hole imager, wherein the mining geological drilling radar is used for detecting abnormal bodies of the drill hole to be detected in an all-round and large-range mode; the drilling imager is used for observing and recording the integrity of the wall of the drilling hole; step two, comparing detection results: and continuously comparing and analyzing the two detection results at the same depth by adopting an image comparison mode to obtain a comprehensive detection result and predict the geological structure condition in front of the drill hole. The method has the advantages that the two detection images obtained by the double-method detection are compared and analyzed to obtain the accurate geological structure condition of the drilling area, the geological structure condition in front of the drilling hole can be accurately predicted, the detection range is large, the precision is high, the operation is simple, the method is easy to master, the accurate analysis and prediction of the geological structure are easy to perform, and the application prospect is wide.)

1. A coal mine underground geologic structure drilling refinement omnibearing detection method is characterized by comprising the following steps:

the first step, double-method detection: the method comprises the steps of detecting the same drill hole by adopting a mining geological drilling radar and a drill hole imager, wherein the mining geological drilling radar is used for detecting abnormal bodies of the drill hole to be detected in an omnibearing and large range; the drilling imager is used for observing and recording the integrity of the wall of the drilling hole;

step two, comparing detection results: and continuously comparing and analyzing the two detection results at the same depth by adopting an image comparison mode to obtain a comprehensive detection result and predict the geological structure condition in front of the drill hole.

2. The method of claim 1, wherein the image comparison is performed by a computer program and the images of the two detection results are displayed simultaneously on a same screen.

3. The method of claim 2, wherein the display screen has two independent display areas, and each display area correspondingly displays a detection result image.

4. The method for the all-dimensional fine detection of the underground coal mine geologic structure drilling hole according to claim 3, wherein the computer executing the computer program is an upper computer, and the upper computer is connected with a lower computer through a communication cable; the upper computer and the lower computer respectively read detection result data.

Technical Field

The invention belongs to the technical field of application of a visual imaging technology in roadway tunneling and safety management, and particularly relates to a method for finely and comprehensively detecting underground geologic structure drilling in a coal mine.

Background

In recent years, according to related laws, regulations, standards and the like of underground safety construction production of coal mines issued by the state, the advance prejudgment of front and surrounding engineering geological conditions becomes a necessary condition for safe and efficient tunneling construction of roadways. However, at present, relatively accurate advanced geological condition prediction technologies/methods are hardly reported systematically in China, and related application cases are few, and especially, accurate/precise advanced geological structure detection prediction technologies for gas, karst and the like in coal mines/coal-penetrating tunnels are urgent and needed.

The drilling radar detection technology and the drilling imaging technology are developed rapidly in recent years, and have relatively objective effects in practical application, but the drilling radar is mainly applied to the problems of metal mine detection, underground space detection, crack detection and other mineral exploration and engineering environment, no effective application example of a system exists in the underground coal mine, the drilling imaging technology is mainly applied to the detection of the range of a plastic ring of a coal mine roadway, and no system report and application exists in the advanced detection during the tunneling of the underground coal mine roadway.

At present, a relatively complete and accurate advanced pre-judging method for geological structures applied to underground coal mines is still under exploration, methods such as a mining transient electromagnetic instrument detection technology, a seismic wave reflection method, an infrared radiation temperature measurement method, an electrical detection method and a geological radar method in other rock engineering fields are mainly adopted for prediction and forecast of front geological conditions underground, the accuracy is not high, the method is influenced by factors such as water, construction equipment and metal, the analysis of detection results has high requirements on the technical level of workers, a great deal of knowledge and experience accumulation are needed for detection graph processing, and meanwhile, the use conditions of various detection methods are different and the application fields/areas are different. Therefore, aiming at the defects and requirements of the current advanced prediction technology of underground coal mine geological structures, an efficient, accurate/precise, rapid, simple and convenient to operate, universal and omnibearing geological structure advanced detection and prediction method is urgently needed to be researched and developed.

Disclosure of Invention

The invention aims to overcome the defect of insufficient precision of advanced detection and prediction of geological structures in the prior art, and provides a fine all-dimensional detection method for underground geological structure drilling in a coal mine.

In order to achieve the above object, the present invention adopts the following scheme.

A coal mine underground geologic structure drilling refinement omnibearing detection method comprises the following steps:

the first step, double-method detection: the method comprises the steps of detecting the same drill hole by adopting a mining geological drilling radar and a drill hole imager, wherein the mining geological drilling radar is used for detecting abnormal bodies of the drill hole to be detected in an omnibearing and large range; the drilling imager is used for observing and recording the integrity of the wall of the drilling hole;

step two, comparing detection results: and continuously comparing and analyzing the two detection results at the same depth by adopting an image comparison mode to obtain a comprehensive detection result and predict the geological structure condition in front of the drill hole.

According to the invention adopting the technical scheme, the mining geological drilling radar and the drilling imager are respectively adopted to carry out omnibearing and large-range abnormal body detection and hole wall integrity detection on the drill hole, so that two parameter image data reflecting the geological structure of the body drill hole are obtained, the image data at the same depth are compared and analyzed to obtain a comprehensive detection result, and the geological structure condition in front of the drill hole can be predicted by using empirical data. The method fully utilizes the existing mature drilling detection means to obtain comprehensive and complete detection data, has the advantages of large detection range, high precision, simple operation, easy grasp, easy accurate analysis and prediction of geological structure and wide application prospect. The detection of the mining geological drilling radar and the drilling imager is not sequential, and the mining geological drilling radar and the drilling imager can be used for detection firstly, and the drilling imager can also be used for detection firstly. The detection result comparison can adopt a same-screen comparison mode, and also can adopt a comparison mode that two computers are arranged in parallel and are respectively operated to achieve basic synchronous display.

Preferably, the image comparison is performed by a computer program and the images of the two detection results are displayed simultaneously on the same display screen. The method is convenient for geological engineers to carry out image comparison analysis, improves the analysis efficiency, and ensures the accuracy of the analysis and the obtained comprehensive result.

Further preferably, the display screen has two independent display areas, and each display area correspondingly displays a detection result image. The comparison and observation are further facilitated, the convenience of image comparison is improved, and the analysis efficiency is improved.

Further preferably, the computer executing the computer program is an upper computer, and the upper computer is connected with a lower computer through a communication cable; the upper computer and the lower computer respectively read detection result data. And hardware facilities for forming analysis contrast are used for providing material basic guarantee for synchronous display of image analysis. And after the detection is finished, the storage card is taken down and is transferred to a storage area of a computer hard disk.

The invention has the advantages that two mature detection means are comprehensively applied, and the obtained two detection images are contrasted and analyzed, so that the accurate geological structure condition of a drilling area is obtained, the geological structure condition in front of a drilling hole can be accurately predicted, the detection range is large, the precision is high, the operation is simple, the control is easy, the accurate analysis and prediction of the geological structure are easy, and the application prospect is wide.

Drawings

FIG. 1 is a block flow diagram of the method of the present invention.

FIG. 2 is a schematic diagram of the hardware structure of image comparison in the method of the present invention.

Detailed Description

The invention will be further described with reference to the drawings, but the invention is not limited thereby within the scope of the embodiments described.

Referring to fig. 1 and 2, a coal mine underground geologic structure drilling refinement omnibearing detection method comprises the following steps:

the first step, double-method detection: the method comprises the steps of detecting the same drill hole by adopting a mining geological drilling radar and a drill hole imager, wherein the mining geological drilling radar is used for detecting abnormal bodies of the drill hole to be detected in an omnibearing and large range; the drilling imager is used for observing and recording the integrity of the wall of the drilling hole;

step two, comparing detection results: and continuously comparing and analyzing the two detection results at the same depth by adopting an image comparison mode to obtain a comprehensive detection result and predict the geological structure condition in front of the drill hole.

Wherein the image comparison is performed by a computer program and the images of both detection results are displayed simultaneously on the same display screen 1. The display screen 1 has two independent display areas, namely a first display area 1a and a second display area 1b, and each display area correspondingly displays a detection result image. The computer executing the computer program is an upper computer 2, the upper computer 2 is connected with the display screen 1 through a first data line 3, and the upper computer 2 is connected with a lower computer 5 through a second data line 4; the upper computer 2 and the lower computer 5 respectively read a piece of detection result data.

In practical application, the image data obtained in the detection process is stored in the corresponding memory card, and after the detection is finished, the memory card is taken down and respectively and correspondingly stored in the hard disk storage areas of the upper computer 2 and the lower computer 5.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.