A detonation control method for reducing blasting vibration

Abstract

The invention provides a detonation control method for reducing blasting vibration, which includes the steps of: first step, setting up a multiple series-parallel blasting network, using a side network for conduction outside the holes, and connecting a 4-stage detonator outside the holes between each row of blast holes Detonate the back network after a certain time delay, use different high-level detonators in the hole to delay the initiation of explosives in the hole, and the compound series-parallel blasting network uses a four-way conductor to transmit the detonation wave to the branch; In the second step, the duplex series-parallel blasting network adopts the deep hole loosening blasting control method, and the blasting equipment is used to set a reasonable delay time for each electronic detonator in the hole, so that the blast holes are detonated in sequence according to the expected sequence. This method can not only improve the blasting quality, reduce the blasting vibration effect, and expand the scale of a blasting, but also can achieve more reliability through the reliability of the high-precision millisecond nonel detonator and the millisecond delay blasting network inside and outside the hole. Large-scale blasting speeds up the progress of blasting construction.

Description

technical field [0001] The invention relates to an initiation control method for reducing the blasting vibration effect, which belongs to the field of blasting technology, in particular to a technology capable of effectively reducing the blasting vibration effect. Background technique [0002] While blasting greatly promotes the development of productivity, it is also accompanied by harmful effects such as vibration, air shock waves and other harmful effects caused by blasting. In the prior art, in order to control the seismic effect or vibration effect of blasting, millisecond delay detonation technology hole by hole has been widely used in open-pit blasting at home and abroad. In addition to minimizing the need for single-stage detonation, the shock reduction principle of this technology is It is also the purpose of using a short delay interval to make the seismic signals of each section interfere with each other and reduce vibration. However, in practical applications, du...

AI Technical Summary

Problems solved by technology

In the prior art, in order to control the seismic effect or vibration effect of blasting, millisecond delay detonation technology hole by hole has been widely used in open-pit blasting at home and abroad. In addition to minimizing the need for single-stage detonation, the shock reduction principle of this technology is It is also the purpose of using a short delay interval to make the seismic signals of each section interfere with each other and reduce vibration. However, in practical applications, due to the problem of the detonation accuracy of industrial detonators, in order to avoid the superposition of blasting vibrations caused by the detonator jumping section The phenomenon that the effect increases often increases the delay interval time, which is not conducive to the further shortening of the millisecond delay

[0003] In addition, rock foundation pit excavation projects of infrastructure projects often require deep-hole blasting construction in complex surrounding environments, and it is necessary to ensure the safety of surrounding buildings. The reliability of the existing blast transmission network is low, and it is difficult to undertake such Large-scale blasting works, slowing down the construction progress

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