[1]丁志刚,唐益新,包文成,等. 老木山隧道爆破振动影响因素灰色关联分析[J].湖北工业大学学报,2021,(5):81-85.
　DING Zhigang,TANG Yixin,BAO Wencheng,et al. Grey Correlation Analysis of Influencing Factors of Blasting Vibration in Laomushan Tunnel[J].,2021,(5):81-85.
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 老木山隧道爆破振动影响因素灰色关联分析()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2021年第5期
页码:
81-85
栏目:
湖北工业大学学报
出版日期:
2021-10-31

文章信息/Info

Title:
 Grey Correlation Analysis of Influencing Factors of Blasting Vibration in Laomushan Tunnel
文章编号:
1003-4684(2021)05-0081-05
作者:
 丁志刚1;  唐益新2;  包文成1;  胡其志2
 1 中交路桥南方工程有限公司， 北京 101149；
2 湖北工业大学土木建筑与环境学院， 湖北 武汉 430068
Author(s):
 DING Zhigang1;  TANG Yixin2; BAO Wencheng1;  HU Qizhi2
 1 Zhongjiao Luqiao South Engin. Co., Ltd., Beijing 101149,China;
2 School of Civil Engin.,Architecture and Environment,Hubei Univ.of Tech.,Wuhan 430068,China
关键词:
 ; 隧道爆破; 灰色理论; 围岩稳定; 模型修正; 参数优化
Keywords:
 ; tunnel blasting;  grey theory;  surrounding rock stability;  model modification;  parameter optimization
分类号:
TU997
文献标志码:
A
摘要:
 隧道爆破对围岩的稳定性产生较大影响，其中爆心距、单段最大药量和雷管数等因素直接影响爆破对围岩的扰动程度。依托在建的老木山隧道工程，通过对施工爆破监测数据进行分析，建立该工程爆破振动影响因素指标体系；通过对灰色关联理论中的原参考序列与比较序列绝对差进行修正，对两者k时刻绝对差采用平均法计算，获得修正后的关联系数和灰色关联模型；利用该模型对老木山隧道爆破振动影响因素进行灰色关联分析，确定了各因素间主次关系，依据灰色模型分析结果，对老木山爆破施工方案进行了优化，使得爆破产生的断面峰值振速平均减振率达到28%，有效降低了爆破振动对围岩的影响。
Abstract:
 Tunnel blasting has a greater impact on the stability of the surrounding rock, among which factors such as the blasting center distance, the maximum charge in a single section and the number of detonators directly affect the degree of disturbance of the surrounding rock by blasting. Relying on the Laomushan tunnel project under construction, by analyzing the construction blasting monitoring data, an index system of factors affecting the blasting vibration of the project is established; by correcting the absolute difference between the original reference sequence and the comparison sequence in the grey relational theory, the absolute difference of their K time point is calculated by the average method, and the revised correlation coefficient and gray correlation model are obtained; using this model, the gray correlation analysis of the influencing factors of the blasting vibration of Laomushan tunnel is carried out. The correlation degree of each influencing factor is sorted, and the main factors among the factors are determined. The results show that the blasting center distance is the quasi-optimal factor, and the maximum charge of a single segment and the number of detonator segments are the controllable quasi-optimal factors; based on the gray model analysis results, the Laomushan blasting construction plan is optimized to make the peak vibration of the section produced by blasting, The speed average damping rate reaches 28%, effectively reducing the impact of blasting vibration on surrounding rock.

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备注/Memo

备注/Memo:
 ［收稿日期］ 2020-12-27
［基金项目］ 国家自然科学基金（51978249）
［第一作者］ 丁志刚(1983-)， 男，内蒙古商都人，中交路桥南方工程有限公司工程师，研究方向为道路与桥梁工程的施工技术及管理
［通信作者］ 胡其志(1969-)， 男，湖北红安人，湖北工业大学教授，研究方向为道路与桥梁工程
更新日期/Last Update: 2021-11-01