Tunneling electron detonator blasting construction method

Abstract

The invention discloses a novel blasting construction method. In the method, an electron detonator is used for blasting. The method also comprises the following steps of: designing a detonator arrangement diagram; detonating at least one detonator; analyzing a generated blasting vibration waveform; detonating a special detonator; and eliminating the blasting vibration to the maximum extent by a phase-stagger vibration damping technology. By the technology of the method, the blasting vibration is obviously reduced, full cross section blasting can be performed, circulating drilling footage is increased, blasting residues are well crushed and an obvious polished surface effect is achieved.

Description

technical field [0001] The invention relates to a novel blasting construction method. Background technique [0002] With the acceleration of my country's urban infrastructure construction, the development and utilization of urban underground space has been increasing, especially the urban rail transit system, as the urban infrastructure, has been greatly developed. To build subways (light rails) in cities, it is inevitable to pass under ground buildings (structures). At present, drilling and blasting construction is still the main excavation method for tunnel construction in my country, but in the excavation of urban tunnels, due to vibration Limited by conditions such as speed, the drill and blast method has had great limitations. [0003] At present, the biggest problem in the blasting of underground excavated tunnels in cities and towns is that the blasting vibration is too large, which has seriously affected urban traffic, surface residents, and the life and work of ente...

AI Technical Summary

Problems solved by technology

To build subways (light rails) in cities, it is inevitable to pass under ground buildings (structures). At present, drilling and blasting construction is still the main excavation method for tunnel construction in my country, but in the excavation of urban tunnels, due to vibration Due to the limitation of speed and other conditions, the drill and blast method has had great limitations.

[0003] At present, the biggest problem in the blasting of underground excavated tunnels in cities and towns is that the blasting vibration is too large, and many areas have seriously affected urban traffic, surface residents, and the life and work of enterprises and institutions.

The construction unit had to adopt methods such as multiple blasting to carry out construction, but the effect was not great. In addition, the construction progress was seriously affected due to constant complaints from residents.

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