中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊
Journal of Chongqing Jiaotong University(Natural Science)

Journal of Chongqing Jiaotong University(Natural Science) ›› 2002, Vol. 21 ›› Issue (2): 21-24.

Previous Articles     Next Articles

Measurement and analysis of the surrounding rock vibration during blasting excavation of the Chaodongyan tunnel

ZHAO Ming-jie1,XU Xi-bin1,LIU Xu-hua2,AO Jian-hua2,WANG Biao2   

  1. 1.Department of River &Ocean Engineering , Chongqing Jiaotong University , Chongqing 400074 , China ; 2.Hubei Enshi Institute of Design for Communications, Hubei Enshi 445000 , China
  • Received:2001-09-27 Revised:2001-10-25 Online:2002-06-15 Published:2015-05-18

朝东岩隧道爆破掘进中围岩振动测试与分析

赵明阶1，许锡宾1，刘绪华2，敖建华2，王彪2   

  1. 1.重庆交通学院河海建筑工程系，重庆400074；2.湖北省恩施州交通规划设计院，湖北恩施445000
  • 作者简介:赵明阶(1967—)，男，四川广元人，博士，副教授，从事岩土动力学及地震工程方面的教学与科研工作
  • 基金资助:
    重庆市科技攻关项目(2001 -25-3)及湖北省恩施州318 国道资助项目

PDF

Abstract: Based on the measurement and analysis of explosion vibration in the surrounding rock at the Chaodongyan tunnel , the propagation of blasting seismic wave was researched during tunnel excavations .The research results show that the magnitude of explosion vibration has a maximum in the first time excavations explosion .The propagation of blasting seismic wave is very distinctly different in the varied grade surrounding rock at tunnel, and it cal be interpreted by the experience relationship between the vibration velocity and distance .The main frequency of the blasting seismic waves varied with distance shows clearly a good orderliness

Key words: Chaodongyan tunnel , the surrounding rock , the measurement of explosion vibration

摘要： 通过对朝东岩公路隧道爆破掘进过程中围岩振动的测试和数据分析，结果表明在隧道爆破掘进过程中，采 用分段控制爆破在围岩中产生振动效应并不随同时起爆的装药量成正比增长，振动最大的是掏槽爆破。不同围岩 类别的应力波衰减规律有明显的差异，且均可用萨道夫斯基经验公式较好地模拟。同时在围岩内应力波的频率有 明显的变化规律。实际施工爆破方案优越于理论爆破方案

关键词: 朝东岩隧道, 围岩, 振动测试

CLC Number: