[1]李程①,李洪涛①②,姚强①②,等.滑移式危岩体爆破振动动力稳定性研究[J].爆破器材,2019,48(06):1-6，13.[doi:10.3969/j.issn.1001-8352.2019.06.001]
　LI Cheng,LI Hongtao,YAO Qiang,et al.Dynamic Stability Analysis of Blasting Vibration of Sliding Dangerous Rock Mass[J].EXPLOSIVE MATERIALS,2019,48(06):1-6，13.[doi:10.3969/j.issn.1001-8352.2019.06.001]
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滑移式危岩体爆破振动动力稳定性研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
48
期数:
2019年06
页码:
1-6，13
栏目:
基础理论
出版日期:
2019-12-09

文章信息/Info

Title:
Dynamic Stability Analysis of Blasting Vibration of Sliding Dangerous Rock Mass
文章编号:
5374
作者:
李程①; 李洪涛①②; 姚强①②; 李小虎①
①四川大学水利水电学院(四川成都，610065）
②四川大学水力学与山区河流开发保护国家重点实验室(四川成都，610065)
Author(s):
LI Cheng①;  LI Hongtao①②;  YAO Qiang①②;  LI Xiaohu①
① College of Water Resource and Hydropower, Sichuan University (Sichuan Chengdu, 610065）
② State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University (Sichuan Chengdu, 610065)
关键词:
危岩体; 爆破振动; Matlab; 时程分析法; 动力稳定性
Keywords:
dangerous rock mass;  blasting vibration;  Matlab;  time history analysis;  dynamic stability
分类号:
TU457；TU93
DOI:
10.3969/j.issn.1001-8352.2019.06.001
文献标志码:
A
摘要:
为了研究爆破振动作用下滑移式危岩体的动力稳定性，以白岩山隧道工程的爆破振动信号为基础，提出滑移式危岩体爆破振动加速度以及受爆破振动作用影响的危岩体稳定性安全系数计算方法。根据现场危岩区调查结果，基于时程分析法并通过Matlab计算,得到危岩体爆破振动加速度和危岩体稳定性安全系数时程曲线。结果表明：综合考虑爆破地震波传播过程中的衰减、危岩区频率特性、危岩尺寸以及时间效应等因素的影响，得出的加速度时程曲线和实测的数据基本吻合，计算出的稳定性安全系数符合工程实际，可为类似工程区危岩体稳定安全提供一定的参考。
Abstract:
In order to study the dynamic stability of sliding dangerous rock mass under blasting vibration, the calculation method of blasting vibration acceleration of sliding dangerous rock mass and the safety factor of dangerous rock mass stability affected by blasting vibration were proposed based on the blasting vibration signal of Baiyanshan Tunnel project. The typical dangerous rock mass model was established according to field investigation. Based on the time history analysis method, the time history curves in term of blasting vibration acceleration and safety factor of dangerous rock mass stability are obtained by Matlab. The results show that the acceleration time history curve obtained by considering the attenuation of blasting seismic wave propagation, frequency characteristics of dangerous rock area, size of dangerous rock and time effect is basically consistent with the measured data, and the calculated stability safety factor aligns with the engineering practice. The study can provide a certain benchmark for the stability and safety of dangerous rock mass in similar engineering areas.

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备注/Memo

备注/Memo:
收稿日期：2019-06-17
基金项目：国家重点研发计划资助（2018YFC0406800）；国家自然科学基金项目资助（51809188）
第一作者：李程（1993－），男，硕士研究生，主要从事水工结构、工程爆破方面的研究。E-mail：1979733273@qq.com
通信作者：姚强（1987－），男，博士，讲师，主要从事工程爆破、岩石动力学方面的教学与研究工作。E-mail：yaoqiang777@126.com
更新日期/Last Update: 2019-12-03