Full-face blasting vibration control construction method for tunnel electronic millisecond electric detonator

Abstract

The invention discloses a full-face blasting vibration control construction method for a tunnel electronic millisecond electric detonator, relating to the blasting vibration control technology. The method comprises the following step of: performing a full-face blasting damping control drilling-blasting design by combining blasting vibration requirements according to a tunnel engineering geological condition, an excavated section, an excavating method, a tunneling circulation footage, drilling machine tools and blasting equipment, wherein the drilling-blasting design is as follows: in order to realize the single blasting of cutting holes, auxiliary holes and base plate holes, peripheral holes which are blasted simultaneously are grouped, and the detonator time delay of each shot hole is set, so that the misphase blasting damping is realized; a use flow of the electronic millisecond electric detonator is designed, and the electronic millisecond electric detonator is used according to the flow; an analysis is carried out in the construction process according to the blasting effect and the vibration waveform obtained by blasting monitoring, information is fed back to guide the construction, and blasting parameters are adjusted continuously. The blasting construction method has the advantage of capability of obviously reducing the full-face blasting vibration.

Description

technical field [0001] The invention relates to blasting vibration control technology, in particular to a novel tunnel electronic millisecond electric detonator full-section blasting vibration control construction method, which is suitable for blasting vibration control construction in medium-hard rock underground engineering. Background technique [0002] With the acceleration of my country's railway, highway and urban infrastructure construction, most of the tunnels are shallowly buried and pass through urban and rural structures and buildings, and the tunnel construction in these areas is mostly constructed by the drill and blast method. In order to ensure the safety of surface residents, structures and buildings, blasting vibration control technology must be used in drilling and blasting construction. Traditional blasting vibration control mostly uses millisecond-delayed nonel detonators for multiple blasting and other means of construction, which has low work efficiency...

AI Technical Summary

Problems solved by technology

In 2009, my country produced the Longxin No. 1 TM electronic millisecond electric detonator with independent intellectual property rights, which has the characteristics of high safety, high precision, wide delay range, and online programmable. Blasting vibration control has no examples to learn from

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