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Underground roof surveying control point

A technology of measurement control and control points, applied in the direction of measurement point marking, etc., can solve problems such as easy damage, damage of measurement control points, and influence on downhole measurement operations, and achieve the effect of ensuring normal operation and simple structure

Inactive Publication Date: 2017-01-04
SHANDONG HUALIAN MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The roadway measurement control points in underground mines are all arranged on the roof, because there are pedestrians and transport vehicles walking on the bottom plate, if the control points are arranged on the bottom plate, they are easy to be damaged and difficult to preserve
The roof needs to be sprayed, and the measurement control point is easy to be damaged during the spraying operation, which affects the normal measurement and setting-out work, thereby affecting the downhole measurement operation

Method used

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  • Underground roof surveying control point

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Embodiment Construction

[0012] Embodiments of the present invention are further described below in conjunction with accompanying drawings:

[0013] Such as figure 1 As shown, the underground roof measurement control points include copper rod 1 and the control point round steel 3 connected to the copper rod 1, the connection between the copper rod 1 and the control point round steel 3 is welded with a disc 2, and the disc 2 is welded with Cylindrical steel protection tube 4, the steel protection tube 4 is located on the side of the control point round steel 3, the axis of the steel protection tube 4 is the same as that of the control point round steel 3, and the lower opening of the steel protection tube 4 is connected to the control point round steel 3 The lower end is even.

[0014] Steel protective tube 4 has a diameter of 8 cm, and disc 2 has a diameter of 13 cm.

[0015] When in use, the copper rod 1 is inserted into the roof of the roadway, and the control point round steel 3 is reserved for s...

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Abstract

The invention relates to the technical field of an underground surveying device, especially to an underground roof surveying control point. The underground roof surveying control point comprises a copper rod and control-point round steel connected on the copper rod. A disc is welded at the joint of the copper rod and the control-point round steel. A cylindrical steel protective tube is welded on the disc. The steel protective tube is positioned at one side of the control-point round steel and has the same axis with the control-point round steel. The lower opening of the steel protective tube is flush with the lower end of the control-point round steel. The device provided by the invention has a simple structure. By the device, the surveying control point is protected from being influenced by guniting work, and normal operation of surveying setting-out work is guaranteed.

Description

technical field [0001] The invention relates to the technical field of downhole measurement devices, in particular to a downhole roof measurement control point. Background technique [0002] The roadway measurement control points in underground mines are all arranged on the roof, because there are pedestrians and transport vehicles walking on the bottom plate, if the control points are arranged on the bottom plate, they are easily damaged and difficult to preserve. The roof needs to be sprayed, and the measurement control point is easily damaged during the spraying operation, which affects the normal measurement and setting-out work, thereby affecting the downhole measurement operation. Contents of the invention [0003] According to the deficiencies in the prior art above, the technical problem to be solved by the present invention is to provide an underground roof measurement control point to protect the measurement control point and ensure the normal operation of measur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/02
CPCG01C15/02
Inventor 杨百玉王田福徐艾歌
Owner SHANDONG HUALIAN MINING