The influence of blasting vibration of extended cavern on the stability of operating cavern
WANG Jingkui1, PENG Jianyu2, WANG Zhechao2, LI Kanglin2
1. CNOOC Petrochemical Engineering Co., Ltd., Qingdao 266101, Shandong, China; 2. Institute of Deep Engineering and Intelligent, Northeastern University, Shenyang 110819, Liaoning, China
Abstract: In order to ensure the stability of the existing operation cavern, the blasting vibration analysis of the drilling and blasting excavation of the adjacent expansion cavern was carried out to clarify its influence on the stability of the existing operation cavern. Based on a domestic underground water-sealed cavern project, ANSYS/LS-DYNA was used to establish a three-dimensional numerical calculation model to carry out blasting vibration simulation, and its impact on the operating cavern was evaluated by peak vibration velocity and effective stress. The results showed that the vibration velocity of the monitoring point in the main cavern 1 was 0.1-0.8 cm/s, and the vibration velocity of the monitoring point in the main cavern 2 was 0.045-0.350 cm/s, and the maximum peak velocity appeared in the direction that was consistent with the propagation direction of the wave. The maximum single-stage explosive quantity affected the peak vibration velocity(combined velocity)and effective stress. The more the explosive quantity, the higher the vibration velocity and effective stress, peak vibration velocity could be increased by up to 200%. Under the condition that the maximum single-stage explosive quantity was less than 65 kg, the effective stress and the combined velocity at the nearest distance from the explosion source were less than the values specified in the safety regulations. The blasting construction of the expansion cavern had little impact on the operating cavern and had no potential safety hazard. Combined with the on-site blasting vibration monitoring data, the correctness of the simulation results was verified.
王敬奎,彭建宇,王者超,李康林. 扩建洞库爆破振动对运营洞库稳定性影响[J]. 隧道与地下工程灾害防治, 2024, 6(1): 36-44.
WANG Jingkui, PENG Jianyu, WANG Zhechao, LI Kanglin. The influence of blasting vibration of extended cavern on the stability of operating cavern. Hazard Control in Tunnelling and Underground Engineering, 2024, 6(1): 36-44.
[1] 杨桂桐. 岩体的动力特性及震动波在岩体中的传播[J].金属矿山,1992(6): 33-38. YANG Guitong. Dynamic characteristics of rock mass and propagation of vibration wave in rock mass[J]. Metal Mine, 1992(6): 33-38. [2] 徐言. 基于萨道夫斯基公式分段修正的隧道爆破振动研究[J]. 科学技术创新, 2020(21): 103-104. XU Yan. Study on blasting vibration of tunnel based on subsection correction of Sadowski formula[J]. Scientific and Technological Innovation, 2020(21): 103-104. [3] 柴少波, 史杰辉, 阿比尔的, 等. P波入射含顺层结构面岩质边坡引起的振动[J]. 山东大学学报(工学版), 2023, 53(3): 31-40. CHAI Shaobo, SHI Jiehui, ABI Erdi, et al. Vibration caused by P-wave incident on a rock slope with a bedding structural plane[J]. Journal of Shandong University(Engineering Science), 2023, 53(3): 31-40. [4] 顾文彬, 王振雄, 陈江海, 等. 装药结构对爆破震动能量传递及爆破效果影响研究[J]. 振动与冲击, 2016, 35(2): 207-211. GU Wenbin, WANG Zhenxiong, CHEN Jianghai, et al. Influence of charge structure on the energy transfer of blasting vibration and explosive effect[J]. Journal of Vibration and Shock, 2016, 35(2): 207-211. [5] 宿利平, 洪政, 谷桂丽, 等. 隧道掘进水封光面爆破装药结构的优化试验研究[J].爆破器材,2023,52(5):44-49. SU Liping, HONG Zheng, GU Guili, et al. Experimental study on optimization of charge structure in water sealed smooth blasting of tunnel excavation[J]. Blasting Equipment, 2023, 52(5):44-49. [6] 张枝伟, 雷兴海, 吴桂义, 等. 不同装药结构爆破掘进时巷道围岩损伤规律分析[J]. 煤炭工程, 2022, 54(3): 125-130. ZHANG Zhiwei, LEI Xinghai, WU Guiyi, et al. Laws of roadway surrounding rock damage in blasting excavation with different charge structures[J]. Coal Engineering, 2022, 54(3): 125-130. [7] 刘玉丰, 方芳, 李海谦, 等. 不耦合装药结构爆炸孔壁压力分布特性的数值模拟[J]. 矿冶工程, 2022, 42(5): 30-33. LIU Yufeng, FANG Fang, LI Haiqian, et al. Numerical simulation of pressure distribution of blastholes with decoupled charges[J]. Mining and Metallurgical Engineering, 2022, 42(5): 30-33. [8] 苟倩倩, 赵明生, 张光雄, 等. 装药结构对爆破振动能量传递的影响研究[J]. 爆破, 2020, 37(1): 61-67. GOU Qianqian, ZHAO Mingsheng, ZHANG Guangxiong, et al. Effect of charge structure on energy transfer of blasting vibration[J]. Blasting, 2020, 37(1): 61-67. [9] 宁光忠, 胡泉光, 闫肖, 等. N-J水电站岩爆区应力释放孔预裂控制的爆破分析[J]. 山东大学学报(工学版), 2017, 47(2): 41-46. NING Guangzhong, HU Quanguang, YAN Xiao, et al. Analysis of pre-splitting blasting in rock burst area of N-J Hydropower Station[J]. Journal of Shandong University(Engineering Science), 2017, 47(2): 41-46. [10] 薛冰, 凌静, 陈华东, 等. 单基发射药与乳化炸药爆破振动特性对比研究[J]. 爆破, 2022, 39(3): 145-150. XUE Bing, LING Jing, CHEN Huadong, et al. Comparative study on blasting vibration characteristics of single-base gun propellant and emulsion explosive[J]. Blasting, 2022, 39(3): 145-150. [11] 符淋坤, 成传欢, 李鹏, 等. 湛江国储地下水封洞库工程主洞室顶拱层开挖爆破试验研究[J]. 长江科学院院报, 2018, 35(8): 145-150. FU Linkun, CHENG Chuanhuan, LI Peng, et al. Blasting tests of vault layer excavation in water sealed underground caverns of Zhanjiang National Petroleum Storage Projec[J]. Journal of Yangtze River Scientific Research Institute, 2018, 35(8): 145-150. [12] 梁琨, 王树欣, 张宪堂, 等. 大跨度小净距隧道爆破振动响应研究[J]. 爆破, 2021, 38(2): 67-72. LIANG Kun, WANG Shuxin, ZHANG Xiantang, et al. Response of large-span tunnel to blasting vibration of small clear spacing tunnel excavation[J]. Blasting, 2021, 38(2): 67-72. [13] 涂颖, 杨建华, 代金豪. 大型地下洞室上层爆破开挖对下层围岩振动特性的影响[J]. 长江科学院院报, 2020, 37(9): 110-114. TU Ying, YANG Jianhua, DAI Jinhao. Vibration characteristics of lower rock masses during blasting excavation of upper layers in a large underground cavern[J]. Journal of Yangtze River Scientific Research Institute, 2020, 37(9): 110-114. [14] 郭伟平. 爆破振动对邻近既有隧道的影响[J].施工技术,2020,49(21): 81-84. GUO Weiping. Influence of blasting vibration on adjacent existing tunnel[J]. Construction Technology, 2020, 49(21): 81-84. [15] 汪平, 吉凌. 浅埋地铁隧道爆破振动速度传播规律及预测[J].工程爆破,2021,27(2): 108-113. WANG Ping, JI Ling. Propagation law and prediction of blasting vibration velocity of shallow buried subway tunnel[J]. Engineering Blasting, 2021, 27(2): 108-113. [16] YUAN P, XU Y, ZHENG Z T. Time-frequency analyses of blasting vibration signals in single-hole blasting model experiments[J]. Journal of Vibro Engineering, 2017, 19(1): 363-375. [17] GUO J, GAN D Q, TAN J, et al. Analysis on monitor and experiment of blasting vibration for Sijiaying Iron Mine[J]. Applied Mechanics and Materials, 2012, 214: 407-411. [18] 崔浩, 郭锐, 宋浦, 等. 基于遗传算法辨识炸药JWL状态方程参数的研究[J]. 振动与冲击, 2022, 41(9): 174-180. CUI Hao, GUO Rui, SONG Pu, et al. Identification of parameters of explosive JWL state equation basedon genetic algorithm[J]. Journal of Vibration and Shock, 2022, 41(9): 174-180. [19] 朱必勇, 焦文宇, 寇向宇, 等. 基于数值模拟的预裂爆破参数优化研究[J].有色金属(矿山部分),2019,71(4): 32-36. ZHU Biyong, JIAO Wenyu, KOU Xiangyu, et al. Parameters optimization of pre-split blasting based on numerical simulation[J]. Nonferrous Metals(Mining Section), 2019, 71(4): 32-36. [20] 邱薛, 刘晓辉, 胡安奎, 等. 煤岩动态RHT本构模型数值模拟研究[J/OL].煤炭学报.(2023-09-07)[2023-11-20]. https://doi.org/10.13225/j.cnki.jccs.2023.0540. QIU Xue, LIU Xiaohui, HU Ankui, et al. Numerical simulation study on dynamic RHT constitutive model of coal and rock[J/OL]. Journal of Coal Science.(2023-09-07)[2023-11-20]. https://doi.org/10.13225/j.cnki.jccs.2023.0540. [21] 易长平, 冯林, 王刚, 等. 爆破振动预测研究综述[J]. 现代矿业, 2011(5): 1-5. YI Changping, FENG Lin, WANG Gang, et al. A review of research on blasting vibration prediction[J]. Modern Mining, 2011(5): 1-5. [22] 国家质量监督检验检疫总局, 中国国家标准化管理委员会. 爆破安全规程: GB 6722—2014[S]. 北京: 中国标准出版社, 2015.
2024, Vol. 6 
