Monitoring and Controlling Technology for Blasting Vibration Induced
by a Shallow-Buried Tunnel in a Complex Environment
（1 College of Architecture and Civil Engineering,
Shandong University of Science and Technology, Qingdao 266590;
2 Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention
and Mitigation [SDUST], Qingdao 266590）
Abstract：
The Tai'an Station to Yijing Station running tunnel section of the Shenzhen Metro lines 5 and 7 is designed as a shallow-buried tunnel. Considering that there are many surface buildings, and following the requirements of technical standards, blasting vibration should be monitored to ensure construction safety. This paper analyzes the monitoring data obtained from some typical monitoring sections and determines the vibration law in radial and normal directions. In the radial direction, the vibration velocity in the excavated area is greater than that of the unexcavated area; in the normal direction, the vibration velocity reduces linearly from the working face to two sides with the center at the working face (zero test point). The results show that shock absorption is evident by drilling intensive damping holes and stemming the bottom holes with bamboo, and the shock-absorption effect in the radial direction is better than that in the normal direction.
.Monitoring and Controlling Technology for Blasting Vibration Induced
by a Shallow-Buried Tunnel in a Complex Environment[J] MODERN TUNNELLING TECHNOLOGY, 2013,V50(3): 142-146
2013, Vol. 50 