Hydraulic cutting excavating techniques realized nobody watch in the course of taking measures and increased the safety of the course of taking measures and excavating.

• 试验证明，水力掏槽措施卸压范围广、防突效果显著，同时水力掏槽掘进工艺实现了措施期间无人值守，提高了措施、掘进过程的安全性。