Open air water hole float-and-sink sounding type detonating method

Abstract

The invention discloses an open air water hole float-and-sink sounding type detonating method and belongs to the technical field of detonation. A double-layered pipe is spirally connected to a detonating sink plate, the detonating sink plate is transferred down to a water surface in a water hole to measure depth of an air layer, then a balance weight material is injected into the double-layered pipe, the detonating sink plate gained in weight sinks continuously to the surface of sludge in the water hole to measure the depth of the water layer, the balance weight material is continuously injected into the double-layered pipe till the detonating sink plate sinks downwards to the bottom of the water hole to measure the depth of a sludge layer, explosive components are prepared reasonably according to depths of the air layer, the water layer and the sludge layer, then water is injected into the double-layered pipe, so that the detonating sink plate is separated, the lower half part of the detonating sink plate is left in the sludge layer and the upper half part floats to the water surface, the upper half part is filled with macadams to a hole opening with a plugging material, detonation is reserved in the lower half part to adjust measures to local conditions, and explosive bags are distributed and mounted while sounding is achieved, and therefore, the detonating efficiency and effect can be improved remarkably.

Description

technical field [0001] The invention relates to the technical field of blasting, in particular to an open-air water hole floating-sinking depth-measuring blasting method. Background technique [0002] Blasting is a technology that uses the compression, loosening, destruction, throwing and killing effects of explosives in air, water, earth and rock media or objects to achieve the intended purpose. When the explosive package or charge explodes in the earth-rock medium or structure, the earth-rock medium or structure will be compressed, deformed, destroyed, loosened and thrown. It is mainly used in earthwork engineering, and the demolition of metal buildings and structures. The scope of the research includes: the properties and usage methods of explosives and firearms, the explosive effect of charges (charges) in various media, the contact blasting and non-contact blasting of charges on targets, and the organization and implementation of various blasting operations . [0003]...

AI Technical Summary

Problems solved by technology

[0004] After measuring the thickness of the silt layer, water layer and air layer in the water hole, it is necessary to design the explosive package according to the depth of different media, and fix the explosive package in the water hole. Due to the low density of the emulsion explosive, if the explosive package Throwing it directly into the blast hole, the rough hole wall will cut the charge and cause the emulsion explosive to flow out, and float on the water surface to block the blast hole, making it impossible to continue filling the charge. Unable to reach the bottom of the blast hole, weakening the explosive power of the explosive will affect the blasting effect, thereby reducing the integrity rate of the blast hole, and unfavorable factors such as hole jamming are prone to occur during the charging operation

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