In the mine laneway with coal and gas outburst,outburst prevention measures determined excavating velocity and construction safety.

In this paper,the approach to advance excavating velocity of coal-rock drift and coal drift is analyzed,the improvement of drilling and blasting technology is mainly researched,operation organization is arranged rationally by means of system engineering method,some relative problems to realize quick excavation that should be paid attention to is also discussed.

Prediction on penetration rate of TBM based on Monte Carlo-BP neural network

The research on the application of smooth blasting in fast excavation;

Since carrying out the technology of"hydraulic tunneling",the rate descends evidently and the speed of excavation improves more than half a double and achieved the aim of safety fast excavation.

Supplementary measure and technical transform of equipment in quick tunneling;

This paper introduces the Geological conditions and surrounding environment of a certain city s shallow buried tunnel engineering, expounds the features and concrete measures of the quick tunneling construction technique, and points out that the meticulous organization and scientific management are the effective guarantees for realizing the quick tunneling of the urban tunnel.