松软膨胀岩巷的爆破与支护

Blasting and Supporting Technique of Soft and Inflatable-rock Tunnel

在分析松软岩层的爆破破坏特征的基础上,根据光面爆破理论,结合工程实践,进一步优化与完善了光面爆破参数。并根据现场观测和理论分析,确定了锚网喷支护方案,优化了软岩支护参数,解决了松软膨胀岩石巷道支护存在的问题。

Based on the theoretical analysis of the cracking and breaking character of weak rock blasting and the rock smooth blasting technique fundamentals, the theoretica calculating for mulae of the parameters of smooth blasting in weak rock tunnel are set up and then these parameters calculated with for mulaeaare reapplied in engineering practice. Through field observation and theory analysis,all the parameters of the scheme are optimized.The supporting cheme has achieved good results.