STUDY OF BLASTING VIBRATION TEST OF AREA NEAR TUNNEL BLASTING SOURCE
(1. Tunnel and Underground Engineering Research Center of Ministry of Education,Beijing Jiaotong University,Beijing 100044,China;2. Appraisal Center of Engineering Design,Ministry of Railways,Beijing 100844,China;3. China Railway 14 Group
Co.,Ltd.,Jinan,Shandong 250014,China)
Abstract:When a tunnel is constructed by blasting,the stability of surrounding rock near tunnel face is important for safety of builders and tunnel itself. It is testified that the blasting vibration rule obtained from area remote blasting source is not suitable for the area near tunnel blasting source. So it is necessary to test blasting vibration of the surrounding rock near tunnel blasting source and to study the blasting vibration rule. Based on Qipanshan tunnel of Guiyang—Guangzhou railway,the tailor-made blasting vibration sensors are disposed in the arch crown surrounding rock within the range of 5 m to test the blasting vibration velocity. Taking advantage of middle drift excavation,the tailor-made blasting vibration sensors are disposed in upper and side surrounding rocks within the range of 2 m to test blasting vibration velocity. The blasting vibration rules of arch crown and upper and side surrounding rocks behind tunnel face are studied. The study results can provide references for tunnel blasting construction.
傅洪贤1,赵 勇1,2,谢晋水3,侯永兵3 . 隧道爆破近区爆破振动测试研究[J]. 岩石力学与工程学报, 2011, 30(2): 335-340.
FU Hongxian1,ZHAO Yong1,2,XIE Jinshui3,HOU Yongbing3. STUDY OF BLASTING VIBRATION TEST OF AREA NEAR TUNNEL BLASTING SOURCE. , 2011, 30(2): 335-340.
YANG G L,ROCQUE P,BAWDEN W F,et al. Measurement and analysis of near-field blast vibration and damage[J]. Geotechnical and Geological Engineering,1994,12(2):169-182.
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