Borehole peering detection method with precise positioning function, and borehole peering propelling device thereof

A drilling peeping and precise positioning technology, which is applied in the field of engineering exploration and drilling detection, can solve the problems of the description of the crack shape in the difficult hole, the camera probe cannot always be kept in the center and the stable state, etc., to achieve a wide range of applications, easy installation, data Detect precise effects

Active Publication Date: 2018-11-13
SHANDONG UNIV OF SCI & TECH
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  • Claims
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AI Technical Summary

Problems solved by technology

Since the existing borehole spying system is mostly aimed at locating the fracture shape and rock formation rupture, the camera probe cannot always be kept in a centered and stable state during the detection process, and it is difficult to accurately describe the fracture shape in the hole

Method used

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  • Borehole peering detection method with precise positioning function, and borehole peering propelling device thereof
  • Borehole peering detection method with precise positioning function, and borehole peering propelling device thereof
  • Borehole peering detection method with precise positioning function, and borehole peering propelling device thereof

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] like figure 1 As shown, a precise positioning borehole peep detection method is as follows:

[0032] In the first step, on the display screen 17 of the drilling TV host, five equally spaced concentric circles are set as the measuring scale 19 through the control panel 16. The measuring scale 19 is divided into a radial scale 22 and a circumferential scale 21. The radius of the concentric circles is The radial scale is used to measure the depth of the target point from the camera probe, and the 0 ° ~ 360 ° circumferential angle scale rays of the concentric circles are used as the circumferential scale 21 to measure the inclination angle of the target point around the borehole 20;

[0033] Measuring scale 19 as Figure 4 shown; Figure 5 Also shown are five concentric circle radii representing the first radial scale I, the second radi...

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Abstract

The invention discloses a borehole peering detection method with a precise positioning function, and a borehole peering propelling device thereof. The borehole peering detection method is conducted through a bore peering system and mainly comprises the steps that a plurality of concentric circles at equal distances are arranged on a display screen of a borehole television mainframe to serve as a measuring ruler, and a camera probe of the borehole peering system is mounted on a device body with a telescopic tripod; the bottom end of the device body is connected to a push rod through a thread, acable of the borehole television mainframe penetrates through a hollow core of the push rod, and a data line of the camera probe is connected with the borehole television mainframe through the cable;propelling is conducted towards the interior of a borehole, and fracture detection is conducted; the borehole television mainframe collects and records a borehole inner wall image displayed on the measuring ruler; and the changing situation of fracture data detected for multiple times is analyzed, accordingly, the evolutionary process and the development tendency of a fracture are obtained, the accurate basis is provided for calculating the rock stratum displacement trend, and actual design and construction of rock mass engineering are directed.

Description

technical field [0001] The invention relates to the technical field of engineering survey borehole detection. Background technique [0002] With the increase of the mining depth of mine resources, the original stress of the stope changes after mining, such as the stress increase area and the decrease area of ​​the surrounding rock of the coal seam. Variety. However, the existence of fissures reduces the strength of the rock mass, which controls the instability and failure mode of the rock mass to a certain extent, especially under the dual effects of structural planes and high stress in deep rock formations, the fractured rock mass presents more complex deformation and failure characteristics. [0003] The more advanced method for detecting rock mass fissures at present is to adopt the drilling peep system. The drilling peeping system includes installing the camera probe in the device body, the device body is installed on the push rod, the data cable of the camera probe is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/002E21B47/02E21B49/00G01B11/22G01B11/02
CPCE21B47/02E21B49/00G01B11/02G01B11/22E21B47/002Y02A90/30
Inventor 房凯杨坤赵同彬周军华
Owner SHANDONG UNIV OF SCI & TECH
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