Blasting rapid excavation technology for freezing thick gravel stratum of mine shaft;

Construction organization and management of the rapid excavation of the surrounding rock of Dawoshan tunnel entrance;

The depth of sealing hole is a very important factor in hydraulic screen;according to the condition of Sang Shu-ping coal mine,base the theoretically analyse and though the checkout,make sure the logical depth of sealing hole of hydraulic screen in Sang shu-ping coal mine,good effect was obtained,and carrying out rapid excavation.

Therefore,the efficient work of methane pre-warning should be done in order to provide safety for coal laneway with mechanized speedy drivage.

,the rock drift speedy drivage is realized.

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.

It is expounded that by adopting the traditional construction methods (such as full face tunnelling method or lower guide-adit method )and allocating national-made machinery may obtain also stable and high-efficient rapid tunnelling speed for construction of railway extra-long single-tracked tunnels.

The paper introduces mainly the Songhe single line extra long railway tunnel on Shui Bei Railway carrying out vigorously the mechanization of construction to implement the full face single end rapid tunnelling technique.