确保巷道成型的爆破参数与支护方式合理选取

The Rational Selection of Detonation Parameters and Support pattern for Ensuring the Tunnel Shape in Good Condition

介绍了在生产现场通过合理选取爆破参数及支护方式,有效地控制了软岩巷道顶板破坏和垮落,确保巷道成型,消除了因顶板垮落出现的局部瓦斯积聚和顶板事故等重大安全隐患。

Choosing rationally the detonation parameters and support pattern, roadway failure of soft rock was avoided effectively, and thus the hidden troubles such as local methane accumulation caused by roof collapses has eliminated.