Abstract:

The features of construction of railway tunnels in gascontaining ground are summarized on basis of analysis on the relevant standards for construction of railway tunnels in gascontaining ground and referring to Specification for Safety of Coal Mines. Comments are made on some items in the mentioned standards on basis of analysis on these items and referring to the accidents occurring in tunnels and mines in gascontaining ground in China. Conclusions drawn are as follows: 1) The standards and requirements for the tunnelentering management system should be further clarified; 2) The principles of power supply for tunnels in gascontaining ground should be further clarified and detailed; 3) The principles and stipulations for the allocation of explosionproof electrical and mechanical equipment for tunnels in gascontaining ground should be further clarified and improved.

Key words:  railway tunnel in gascontaining ground, coal mining, power supply, explosionproof equipment