Controlled Blasting Vibration of Slope Based on Stepwise Regression Algorithm

ZHOU Wen-hai; YU Jian-ping; LIANG Rui; L Ya-ru; WANG Dun-fan; CHEN Zong-jie

doi:10.11988/ckyyb.20171331

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Journal of Changjiang River Scientific Research Institute ›› 2019, Vol. 36 ›› Issue (7) : 89-95. DOI: 10.11988/ckyyb.20171331

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Controlled Blasting Vibration of Slope Based on Stepwise Regression Algorithm

ZHOU Wen-hai¹, YU Jian-ping¹, LIANG Rui¹, L Ya-ru¹, WANG Dun-fan², CHEN Zong-jie³

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Abstract

In order to study the variations of physical variables affecting the blasting effect in the process of slope throw blasting, we functionized all variables in the Sadaovsk formula considering the influence of elevation and modified the factor function by multivariate regression fitting to determine the functional relationship. Subsequently we conducted stepwise regression analysis of Sadaovsk formula and gave the value of correlation coefficient. Results evinced that unit volume of single-hole blasting is the dominant factor of the explosive charge function. When the line of least resistance is over 2.0 m, the influence of other factors is below 10%. The critical elevation difference for elevation amplification effect is about 38 m. In addition, the main vibration frequency exhibited a decreasing trend with the increase of the horizontal distance R when the specific charge ρ is a fixed value; so did it when the explosive charge Q is a fixed value, and the deceleration rate reduced gradually. When R is a fixed value, the main vibration frequency declined also with the rising of Q, and such deceleration attenuated gradually. The research findings could be utilized to mitigating the vibration of surrounding buildings generated by slope blasting and to ensuring the final stability of slope.

Key words

blasting vibration / stepwise regression algorithm / vibration amplitude / scale charge / dominant frequency / elevation amplification

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ZHOU Wen-hai, YU Jian-ping, LIANG Rui, L Ya-ru, WANG Dun-fan, CHEN Zong-jie. Controlled Blasting Vibration of Slope Based on Stepwise Regression Algorithm[J]. Journal of Changjiang River Scientific Research Institute. 2019, 36(7): 89-95 https://doi.org/10.11988/ckyyb.20171331

References

[1] ZHENG Jun-jie, LOU Xiao-ming, LUO De-pi. Vibration Superposition in Tunnel Blasting with Millisecond Delay[J]. Journal of Southwest Jiaotong University (English Edition), 2009, 17(1): 42-46.
[2] 赵建平,宋晓东,林翔. 露天爆破对近地表平洞结构的地震响应频谱分析[J]. 长江科学院院报,2016, 33(3):80-83.
[3] 吕涛,石永强,黄诚,等. 非线性回归法求解爆破振动速度衰减公式参数[J]. 岩土力学,2007, 28(9):1871-1878.
[4] 卢文波,周俊汝,陈明,等.爆破振动主频衰减公式研究[J].工程爆破,2015,21(6):1-6.
[5] TRIPATHY G R, SHIRLCE R R, KUDALE M D. Safety of Engineered Structures against Blast Vibrations: A Case Study[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2016(8): 248-255.
[6] 李启月, 徐敏, 董陇军,等. 光面爆破效果参量预测的投影寻踪回归模型及应用[J]. 中南大学学报(自然科学版),2012, 43(10):3976-3981.
[7] 张立国,龚敏,于亚伦. 爆破振动频率预测及其回归分析[J]. 辽宁工程技术大学学报, 2005, 24(2):187-189.
[8] 胡建华,尚俊龙,罗先伟,等. 单孔爆破振动监测与衰减规律多元线性化回归[J]. 振动与冲击, 2013, 32(16):49-53.
[9] DHAKAL R P, PAN T C. Response Characteristics of Structures Subjected to Blasting-induced Ground Motion[J]. International Journal of Impact Engineering,2003, 28 (25):813-823.
[10]李夕兵,古德生,赖海辉. 冲击载荷下岩石动态应力-应变全图测试中的合理加载波形[J]. 爆炸与冲击, 1993, 13(2):125-130.
[11]杨建华,卢文波,陈明,等. 岩石爆破开挖诱发振动的等效模拟方法[J]. 爆炸与冲击, 2012, 32(2):157-163.
[12]谢全民,龙源,钟明寿, 等. 小波与分形组合分析技术在爆破振动信号分析中的应用[J]. 爆炸与冲击, 2011, 30(12):120-124.
[13]徐全军,张庆明,挥寿榕. 爆破地震峰值的神经网络预报模型[J]. 北京理工大学学报, 1998, 18(4):472-475.
[14]文建华,李新平,张文成,等. 复合遗传算法在爆破震动测试参数确定中的研究[J]. 岩土力学, 2005, 26(1):160-162.
[15]唐海,李海波. 反映高程放大效应的爆破振动公式研究[J]. 岩土力学, 2011, 32(3):820-824.
[16]JIANG Li-chun, HU Liu-qing, LAI Xiu-ying. Investigation on the Threshold Control of Safety Blasting Vibration Velocity for the Extraction of Complicated Orebody under Railway[J]. Mining Science and Technology, 2011(21): 169-174.
[17]傅洪贤,赵勇,谢晋水,等. 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.
[18]周纪芗. 实用回归分析方法[M]. 上海:上海科学技术出版社, 1990.
[19]金骥良. 工程爆破药量计算的基本公式[J]. 铁道工程学报, 1984(2):44-49.
[20]梁书锋,王宇涛,刘殿书,等. 爆破振动速度预测安全保证系数的确定[J]. 爆炸与冲击, 2015, 35(5):741-746.
[21]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.
[22]MARRARA F, SUHADOLC P. Site Amplifications in the City of Benevento(Italy) Comparison of Observed and Estimated Ground Motion from Explosive Sources[J]. Journal of Seismology, 1998, 2(2):125-143.
[23]陈明,卢文波,李鹏,等. 岩质边坡爆破振动速度的高程放大效应研究[J]. 岩石力学与工程学报, 2011, 30(11):2189-2195.