院报 ›› 2012, Vol. 29 ›› Issue (7): 41-44.DOI: 10.3969/j.issn.1001-5485.2012.07.009

• 工程安全与灾害防治 • 上一篇    下一篇

石门坎大坝栈桥桥墩爆破倾倒历时及振动效应分析

占学军,任贤斌, 张晓平   

  1. 水利部岩土力学与工程重点实验室, 武汉430010
  • 收稿日期:2011-06-15 出版日期:2012-07-01 发布日期:2012-07-25
  • 作者简介:占学军(1978-),男,湖北仙桃人,工程师,主要从事工程爆破及工程物探等工作

Toppling Duration and Vibration Effect Caused by Blasting of Hydraulic Trestle Pier

ZHAN Xue-jun,REN Xian-bin, ZHANG Xiao-ping   

  1. ZHAN Xue-jun,REN Xian-bin, ZHANG Xiao-ping
  • Received:2011-06-15 Online:2012-07-01 Published:2012-07-25

摘要: 水工栈桥桥墩拆除爆破若处理不当,会对临近的水工建筑物造成永久性影响。通过对石门坎水电站栈桥的爆破倾倒历时及振动效应分析,给出了栈桥倾倒历时的求解公式,并指出了减少振动影响的相关措施。结果表明栈桥倾倒历时的实测数据与理论计算基本相符,爆破未对周边建筑物产生有害影响。

关键词: 爆破, 栈桥, 历时,  振动, 倾倒

Abstract: Improper handling of the demolition blasting of hydraulic trestle pier will cause permanent effect on the hydraulic structure. Based on monitoring data and macroscopic survey, the authors analyzed the toppling duration and vibration effect of the trestle of Shimenkan hydropower station, and gave the calculation formula of toppling duration which is an improvement compared with former methods. Measures of reducing vibration effect were proposed. No adverse impact was exerted on surrounding buildings by the blasting, and the monitored toppling duration data generally agreed  with theoretical calculation result.

Key words: blasting, trestle, duration, vibration, toppling 

中图分类号: 

Baidu
map