Partition detection method and device for construction of multi-level intersection tunnel based on blasting vibration

Abstract

The invention discloses a method and device for detecting flyover crossing tunnel construction based on vibration of blasting in a partition mode. The method comprises the steps that first data are received, wherein the first data comprise the diameter of an excavated hole, the crossing angle and the crossing clear distance; the dynamic effect criterion value of the position to be blasted on a first tunnel is obtained according to the first data; the obtained dynamic effect criterion value of the position to be blasted through calculation is compared with a partition reference value which is stored in advance, and the partition level of the position to be blasted is determined. According to the method and device for detecting flyover crossing tunnel construction based on vibration of blasting in the partition mode, through the received first data, the dynamic effect criterion value of any position to be blasted of the first tunnel which is constructed later is obtained through calculation, the dynamic effect criterion value is compared with the partition reference value which is stored in advance, and therefore the partition level of any position to be blasted of the first tunnel is determined; as a result, the dynamic effect of the blasting vibration effect of blasting construction on the structure of a flyover crossing tunnel is considered and quantified conveniently before construction, blasting construction is conducted at different positions of the tunnel which is constructed later, and therefore the blasting schemes at different positions in the process of construction are guided.

Description

technical field [0001] The present invention relates to the field of tunnel construction, in particular to a method and device for zone detection of three-dimensional intersection tunnel construction based on blasting vibration. Background technique [0002] With the development of our country's national economy, the demand for infrastructure, especially for the construction of transportation facilities, is constantly increasing. At the same time, high-level traffic arteries have also been developed unprecedentedly. For example: high-speed / heavy-haul railways and expressways are the main development directions of land transportation such as railways and highways respectively; the construction of urban subways and urban underpass tunnels is an important means to ease urban traffic; With the vigorous development in the development, the construction of diversion tunnels appeared in large numbers. [0003] On the one hand, due to the increasing demand for the total amount of tr...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a partition detection method and device for the construction of a three-dimensional intersection tunnel based on blasting vibrations, so as to solve the problem that in the prior art, the blasting points of newly-built tunnels in the three-dimensional intersection tunnel cannot be reasonably partitioned, resulting in either adopting an aggressive blasting scheme Lead to safety hazards, or adopt conservative blasting schemes to cause wasteful technical problems

Images