Discussion of Blast Vibration of Construct Little Space Tunnel
According to construction of a little space tunnel in Jiaojin Mountain of Dalian city, based on the theory of rock damaged caused by blasting and monitoring data of damnified rock in-situ experiments, a series of tunnel blasting experiments are carried out, the standard of blasting vibration velocity is increased from the present 4～6cm/s to 10～15cm/s. According to this standard, advance of blasting is 8～9m. Construction schedule and construction cost are reduced. In the end the new tunnel was constructed safely, fast and economically. Considering numerical simulation and strength of rock and concrete, Safety of the existing tunnels is analyzed and the blasting vibration velocity standard of a litter space is discussed.
tunnel cut blasting long distance litter space blast vibration
DAI Xiangsheng FU Hongxian
Research Center of Tunneling and Underground Engineering, Beijing Jiaotong University, Beijing, China
国际会议
The Asian-Pacific Symposium on Blasting Techniques(亚洲太平洋地区爆破技术研讨会)
昆明
英文
492-496
2007-05-08（万方平台首次上网日期，不代表论文的发表时间）