Different buildings around a tunnel in urban have different vibration velocities requirement. It is an unsolved technological and theoretical problem on how to calculate the blasting charge that can satisfy different vibration velocities allowed for all nearby buildings in blasting design. In order to solve this issue, with a case study of Guanyinqiao tunnel as the background, the independent coordinate systems of the tunnel curve and different buildings were established. Based on the coordinate transformation, the values of the shortest distance from the tunnel point to the lattice of each building’s contour were solved by MATLAB program, and substituted to the formula. The charges were calculated respectively, taking the minimum value as the chosen charge, and getting the tunnel location vs blasting charges curve. The LabVIEW executable program was written based on the process mentioned above which facilitates the on-site blasting design. The corresponding blasting parameters were set up for each cycle. The application in the tunnel shows that the safe charges calculated by this method can satisfy the requirements of different vibration velocities. Compared with the analytical method, this method is convenient and easy to promote, and it is important for the charge calculation of urban tunnel.
龚敏，秦天，吴昊骏，虎绍楠. 基于多建构筑物不同振速控制的坐标点阵化隧道安全单段药量计算方法[J]. 振动与冲击, 2020, 39(20): 134-141.
GONG Min，QIN Tian，WU Haojun，HU Shaonan. A coordinate lattice computational method of safe charges per delay in a tunnel under different vibration velocities. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(20): 134-141.
[1] 彭亚雄，吴立，苏莹，等. 考虑高程效应的水下爆破振动衰减拟合模型研究[J]. 振动与冲击，2016，35(13):173-178.
PENG Ya-xiong, WU Li, SU Ying, et al. Fitting models of underwater blasting vibration attenuation consideration effects of elevation［J］. Journal of vibration and shock, 2016, 35(13):173-178.
[2] Agrawal H, Mishra A K. Modified scaled distance regression analysis approach for prediction of blast-induced ground vibration in multi-hole blasting[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2019, 11(1): 202-207. https://doi.org/10.1016/j.jrmge.2018.07.004
[3] Jiang N, Gao T, Zhou C, et al. Effect of excavation blasting vibration on adjacent buried gas pipeline in a metro tunnel[J]. Tunneling and underground space technology, 2018, 81: 590-601. https://doi.org/10.1016/j.tust.2018.08.022
[4] 管晓明，傅洪贤，王梦恕. 隧道近距下穿山坡楼房爆破振动测试研究［J］. 岩土力学，2014，35(7):1995-2003.
GUAN Xiao-ming, FU Hong-xian, WANG Meng-shu. Blasting vibration characteristics monitoring of tunnel under-passing hillside buildings in short-distance［J］. Rock and Soil Mechanics, 2014, 35(7):1995－2003.
[5] 蒋耀港，沈兆武，杨昌德. 市内复杂环境下大药量爆破降振及振动监测分析的研究[J].振动与冲击，2012，31(01):156-161.
JIANG Yao-gang, SHEN Zhao-wu, YANG Chang-de. Big charge blasting vibration damping and vibration monitoring analysis under intracity complicated environment［J］. Journal of vibration and shock, 2012, 31(01) : 156－161.
[6] Cardu M, Coragliotto D, Oreste P. Analysis of predictor equations for determining the blast-induced vibration in rock blasting[J]. International Journal of Mining Science and Technology, 2019. https://doi.org/10.1016/j.ijmst.2019.02.009
[7] 蒋培，段卫东，韩传伟. 城市浅埋隧道爆破开挖施工技术研究［J］. 爆破，2014，31(1):75-78．
JIANG Pei, DUAN Wei-dong, HAN Chuan-wei. Blasting excavation technology of shallow urban tunnels［J］. Blasting, 2014, 31(1):75-78.
[8] 李启航，栾龙发，张智宇，等. 城镇复杂环境下的顶管隧道爆破［J］. 爆破，2012，29(2):54-56．
LI Qi-hang, LUAN Long-fa, ZHANG Zhi-yu, et al. Complex urban environment of the top tube tunnel blasting［J］． Blasting, 2012, 29(2):54-56．
[9] 闫鸿浩，赵晓磊，李晓杰，等. 城市地铁浅埋隧道下穿危房爆破设计及振动区域划分探索［J］. 施工技术，2016，45(1):82-87.
YAN Hong-hao, ZHAO Xiao-lei, LI Xiao-jie, et al. Exploration of the blasting design and vibration zone for the urban metro shallow tunnels undercrossing the building ［J］. Construction Technology, 2016, 45(1):82-87．
[10] 李旭东，白海峰，周志顺. 地面建筑物控制爆破的浅埋隧道暗挖方法研究［J］. 铁道工程学报，2011，148( 1) : 47-50.
LI Xu-dong, BAI Hai-feng, ZHOU Zhi-shun. Study on blasting subsurface excavation method for shallow tunnel under passing ground building［J］. Journal of Railway Engineering Society, 2011, 148(1):47-50.
[11] 黄明利，孟小伟，谭忠盛，等. 浅埋隧道下穿密集房屋爆破减震技术研究［J］. 地下空间与工程学报，2012，8(2):423-427.
HUANG Ming-li, MENG Xiao-wei, TAN Zhong-sheng, et al. Research on the blasting shock absorption technology for shallow-buried tunnel under-traversing the dense houses［J］. Chinese Journal of Underground Space and Engineering, 2012, 8(2):423-427.
[12] 管晓明，余志伟，宋景东，等. 隧道超小净距下穿深埋供水管线爆破监测及减振技术研究[J]. 土木工程学报，2017，50(S2):160-166.
GUAN Xiao-ming, YU Zhi-wei, SONG Jing-dong, et al. Blasting monitoring and vibration reduction technology of tunnel underpass deep buried water supply pipeline with ultra-small clear distance［J］. China civil engineering journal, 2017, 50(S2):160-166.
[13] 袁良远，唐春海，朱加雄，等. 高速公路隧道下穿既有铁路隧道控制爆破技术［J］. 工程爆破，2016，22( 1) :64-67.
YUAN Liang-yuan, TANG Chun-hai, ZHU Jia-xiong, etal. Control blasting technology expressway tunnel underpass existing railway tunnel［J］. Engineering Blasting, 2016, 22( 1) : 64-67..
[14] 龚敏，赵振振，吴昊骏，等. 针对建构筑物不同振速要求的隧道爆破药量计算方法[J].煤炭学报，2016，41(07):1747-1754.
GONG Min，ZHAO Zhen-zhen，WU Hao-jun，et al. Computational method of blasting charges under different vibration velocity limits of buildings and structures around tunnel［J］. Journal of China Coal Society，2016，41(07):1747-1753.
[15] 娄平，曾庆元. 利用缓和曲线的曲率确定其方程式的通用方法［J］. 铁道学报，2003，25( 3) : 104-106.
LOU Ping, ZENG Qing-yuan. A general method for determining transition curve equations by means of the curvature of transition curve［J］. Journal of The China Railway Society, 2003, 25( 3) : 104-106.
