Tunnel face blasthole charge device

Abstract

The invention discloses a tunnel face blasthole charge device, relates to the technical field of blasting, and provides the tunnel face blasthole charge device capable of controlling a charge position. The tunnel face blasthole charge device comprises a charge container, a guide head, an explosive cartridge gasket, a locating piece, two fixing rings and two adjusting structures, wherein the two adjusting structures are located at the two ends of the charge container; each adjusting structure comprises a jacking rod, multiple fixed heads and multiple jacking heads; the fixed heads are arrangedat intervals along the peripheral direction of the upper half of the charge container and are connected to the charge container; the jacking rod is arranged in the upper-and-lower direction, and the upper end of the jacking rod is connected to the upper end of the charge container; the jacking heads are arranged at intervals in the upper-and-lower direction and are connected to the jacking rod; each fixing ring is formed by bending a steel wire and is suspended above the jacking head; the two ends of the steel wire are connected to the fixed heads; the explosive cartridge gasket passes throughthe charge container; the two ends of the explosive cartridge gasket are respectively placed on the two fixing rings; the locating piece is located right above the outer end of the charge container and is connected to the charge container; and the guide head is detachably connected to the front end of the charge container.

Description

technical field [0001] The invention relates to the technical field of blasting, in particular to a charge device for blastholes on the face of tunnels. Background technique [0002] With the continuous improvement of the current level of construction technology and the performance of construction equipment, higher and higher standards and requirements have been put forward for underground engineering and tunnel engineering in the construction of drilling and blasting methods. and micro-vibration blasting and other new controlled blasting technologies. However, when using controlled blasting technology in tunnel blasting engineering, it is necessary to strictly control the charge structure and charge quality of the blast hole on the tunnel face. The shock wave and blasting gas cause excessive disturbance to the surrounding rock, and the radial non-coupling charge structure is often used; in order to adjust the excessive concentration of the charge when charging the blasthol...

AI Technical Summary

Problems solved by technology

However, there are few studies on how to control the quality of radially uncoupled charges and axially spaced charges and their reasonable charge methods in the actual application of these controlled blasting technologies, and there are few related equipments

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