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Method and system for detecting position of drilled hole in roadway

A drilling position and roadway technology, which is applied in the direction of measuring device, electromagnetic measuring device, point coordinate measurement, etc., can solve the problems of difficulty in obtaining accurate drilling position, inconvenient underground construction, and detection.

Active Publication Date: 2019-02-01
内蒙古伊泰京粤酸刺沟矿业有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the underground construction of coal mines, it is difficult to obtain the exact position of the drilled holes. During the construction process, the position of the drilled holes in front of the roadway in the direction of the roadway cannot be detected in the roadway, which brings inconvenience to the underground construction of the coal mine.

Method used

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  • Method and system for detecting position of drilled hole in roadway
  • Method and system for detecting position of drilled hole in roadway
  • Method and system for detecting position of drilled hole in roadway

Examples

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no. 1 example

[0045] The charging method is an electrical exploration method that directly charges the good conductors that have been exposed on the ground, in the tunnel or in the borehole, and understands the size of the ore body by observing the spatial distribution of the charging field. It is mainly used in metal mines or groundwater flow detection.

[0046] This embodiment provides a method for detecting the position of a borehole in a roadway. The charging method is applied to the underground of a coal mine, and the position of a metal observation hole with a smaller aperture in the direction of the roadway can be detected in the underground roadway. By determining the position of the drill hole, the It brings convenience in the actual production and construction process of coal mines. For example, the shortest distance of the tunnel can be used to find the borehole during construction, and avoid digging waste roadways. Please refer to figure 1 , the method for detecting the borehole...

Embodiment approach

[0062] Optionally, see image 3 In the above step 13, an implementation manner of determining the position corresponding to the maximum value of the potential value in the potential curve in the direction of the roadway includes:

[0063] Step 121: Fitting the potential curve with a first preset fitting function to obtain a first fitting curve.

[0064] Since the measured multiple potential values ​​are discrete data points, the potential curve generated based on these multiple discrete data points is not accurate enough. A series of discrete data points in the coordinates can be used as a smooth curve through the preset fitting function Connection, the fitting curve generated by different preset fitting functions is different, in practical application, it can be set freely according to the actual situation.

[0065] Step 122: Determine the position in the roadway direction corresponding to the maximum value of the potential value in the first fitting curve.

[0066] Since t...

no. 2 example

[0076] This embodiment provides a system for detecting the position of a borehole in a roadway, see Figure 7 , including: a power supply device 100 and a receiving device 101, the power supply device 100 is connected to the first power supply electrode A through a first cable, and connected to the second power supply electrode B through a second cable, and the first power supply electrode A is laid in a drill hole exposed At the outcrop position on the ground surface, for example, it is connected to the metal casing of the borehole. The power supply device 100 supplies power to the borehole through the first power supply electrode A, and the second power supply electrode B connected to the power supply device 100 is buried in a certain distance from the borehole. On the ground surface, as an electrode at infinity; the receiving device 101 is connected to the first measuring electrode M through the third cable, and connected to the second measuring electrode N through the fourt...

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Abstract

The invention discloses a method and a system for detecting the position of a drilled hole in a roadway. The method comprises the following steps that a first power supply electrode is arranged in theposition, exposed to the ground, of the drilled hole, and a second power supply electrode is buried in the ground surface with a first preset distance from the drilled hole, wherein the first power supply electrode is used for supplying power to the drilled hole; a first measurement electrode and a second measurement electrode are arranged in the roadway, wherein the first measurement electrode is used for measuring potential values in different positions in the roadway, and the second measurement electrode serves as an infinite electrode; the potential values of a plurality of position points in the roadway are measured, and a potential curve is generated according to the potential values of the position points and the positions of the position points in a roadway direction; and the position, corresponding to the maximum value of the potential values in the potential curve, in the roadway direction is determined, so that the corresponding position of the drilled hole in the roadway direction is determined. According to the method, the position of the drilled hole in front can be detected in the roadway, so that the convenience is provided for underground coal mine construction.

Description

technical field [0001] The invention relates to the field of underground coal mine detection, in particular to a method and system for detecting the position of a borehole in a roadway. Background technique [0002] When carrying out underground construction in coal mines, it is difficult to obtain the exact position of the drilled holes. During the construction process, the position of the drilled holes in front of the roadway in the direction of the roadway cannot be detected in the roadway, which brings inconvenience to the underground construction of coal mines. Contents of the invention [0003] The purpose of the present invention is to provide a method and system for detecting the position of a borehole in a roadway, which can detect the position of the borehole in the roadway direction in the roadway. [0004] A first aspect of the present invention provides a method for detecting the position of a borehole in a roadway, comprising: [0005] Arranging a first powe...

Claims

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Application Information

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IPC IPC(8): G01B7/00G01B7/004
CPCG01B7/00G01B7/004
Inventor 郭璋杨彦明段建平张春宝王程庞小宇付晓杰何光印安又新康杰
Owner 内蒙古伊泰京粤酸刺沟矿业有限责任公司
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