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Tunnel blasting shot hole angle accurate control auxiliary device

A technology for blasting blastholes with precise angles, which is applied in blasting, tunnels, and electrical transmission signal systems, etc. It can solve the problems of large dependence on the experience level of operators, inaccurate measurement of blasthole angles, and inconsistent depth of blastholes of the same type. Improve the quality of surrounding rock formation, improve drilling accuracy, and improve the effect of instrument fixing accuracy

Pending Publication Date: 2021-04-30
HUAQIAO UNIVERSITY +1
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  • Description
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that air-leg drilling rigs are commonly used to drill blastholes in tunnels at present, and the accuracy of blasthole parameters is highly dependent on the experience level of operators, poor drilling positioning of blastholes is common, and the depth of blastholes of the same type is not uniform , the angle of the blast hole is usually not accurately measured, and the depth is generally estimated by the inspection of the gun stick. The problem of the large error range of the data

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  • Tunnel blasting shot hole angle accurate control auxiliary device

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Embodiment Construction

[0023] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] The invention proposes an auxiliary device for precise control of blasthole angle in tunnel blasting, which includes a leg assembly, a horizontal plane angle adjustment assembly, a vertical plane angle adjustment assembly and a sleeve ranging assembly connected in sequence.

[0025] like figure 1 As shown, the sleeve ranging assembly includes a sleeve 401 for loading drill pipes and a distance measuring mechanism. The distance measuring mechanism includes a red laser 402 and a display assembly, all of which are fixed on the sleeve 401 . The direction of the light beam emitted by the red laser 402 is parallel to the axial direction of the sleeve. The display component includes a main control chip, a display screen and a power supply, and the main control chip is electrically connected to the red laser 402, the display screen and the power supply...

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Abstract

The invention relates to a tunnel blasting shot hole angle accurate control auxiliary device. The auxiliary device comprises a supporting leg assembly, a horizontal plane angle adjusting assembly, a vertical plane angle adjusting assembly and a sleeve distance measuring assembly which are connected in sequence. The vertical plane angle adjusting assembly comprises a vertical plane angle dial and a vertical plane pointer. The sleeve distance measuring assembly rotates along the vertical plane and drives the vertical plane pointer to rotate relative to the vertical plane angle dial. The horizontal plane angle adjusting assembly comprises a horizontal plane angle dial and a horizontal plane pointer; and the vertical plane angle adjusting assembly rotates along the horizontal plane to drive the horizontal plane pointer to rotate relative to the horizontal plane angle dial. The supporting leg assembly is matched with a horizontal indicating mechanism arranged on the horizontal plane angle dial to accurately adjust the levelness of the device, the horizontal plane angle adjusting assembly is used for accurately controlling the horizontal rotation angle of a sleeve, the vertical plane angle adjusting assembly is used for accurately controlling the vertical rotation angle of the sleeve, a distance measuring mechanism is used for indicating the depth of a blast hole, and the blast hole angle and depth can be accurately calibrated.

Description

technical field [0001] The invention relates to the technical field of blasting construction of tunnels and roadways, in particular to an auxiliary device for precisely controlling the blast hole angle during blasting. Background technique [0002] The drill and blast method is to excavate rocks by drilling, charging, and blasting. It has the characteristics of convenience, flexibility, and strong adaptability to geological conditions. It is still one of the most important tunneling methods at this stage. The accurate measurement and determination of the position, depth and angle of the tunnel blasting hole has positive and practical significance for the subsequent explosive filling and plugging, the prevention of early blasting and blasting failure safety accidents, and the guarantee of blasting effect and tunnel forming quality. At present, tunnel blastholes are generally drilled with air-leg drilling rigs. The accuracy of blasthole parameters is highly dependent on the ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D3/04F42D1/00F42D5/045E21D9/00G08B21/18G08B7/06
CPCF42D3/04F42D1/00F42D5/045E21D9/006G08B21/18G08B7/06
Inventor 付晓强俞缙戴良玉张会芝杨悦
Owner HUAQIAO UNIVERSITY
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