上海交通大学学报

上海交通大学学报 >

2009 , Vol. 43 >Issue 10: 1581 - 1584

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2009.10.014

加压条件下地下爆破的三维数值模拟

展开
  • 上海交通大学船舶海洋与建筑工程学院，上海 　200240
陈楠（1985-)，男，河南安阳市人，硕士生，主要从事岩土工程方面的研究.E-mail: czmjsjcnn@yahoo.com.cn.|王建华（联系人），男，教授，博士生导师，电话（Tel.): 021-62932915; E-mail: wjh417@sjtu.edu.cn.

收稿日期: 2009-01-08

  网络出版日期: 2021-04-25

基金资助

国家自然科学基金资助项目(50679041);上海市浦江人才计划资助项目(08PJ1406600);上海市重点学科资助项目(B208)

收起

Three Dimensional Numerical Analysis of Pressurized Underground Explosion

Expand
  • School of Naval A rchitecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China

Received date: 2009-01-08

  Online published: 2021-04-25

Fold

摘要

以某海底顶管工程为背景，针对其施工中需要在加压条件下用微差爆破的方法来穿越岩层的特殊工况进行了三维有限元分析．数值分析充分考虑了不同地层、不同堵塞长度条件下，爆破对顶管及其周围土体的影响．分析结果表明：爆破对设备的冲击随堵塞长度的增加而减小，合适的堵塞长度可以明显减小爆破对工具的影响；全断面爆破比半断面爆破对岩层的影响较小；中心孔比周边孔对周围土体影响小．

关键词： 顶管; 微差爆破; 爆破冲击; 数值分析

本文引用格式

陈楠, 夏小和, 叶冠林, 王建华 . 加压条件下地下爆破的三维数值模拟[J]. 上海交通大学学报, 2009 , 43(10) : 1581 -1584 . DOI: 10.16183/j.cnki.jsjtu.2009.10.014

Abstract

Short-delay blasting was used in a pipe-jacking tunnel in order to pass through rock stratum. And three-dimensional finite element numerical analysis on the influence of the blasting to bored machine and surrounding ground was carried out. The effects of different ground conditions, different clogged lengths were carefully analyzed in the numerical analysis. The analysis results indicate that shock and vibration of blasting on the bored machine reduce with the increase of clogged length. An appropriate clogged length can evidently decrease the influence of blasting on the machine. The blasting vibration on the surrounding rock of full rock face is smaller than that of half rock face condition.The influence of central hole is smaller than that of peripheral hole.

Key words： pipe-jacking; short-delay blasting; shock and vibration; numerical analysis

参考文献

[1] 杨小林, 王梦恕, 王树仁.爆破对岩体基本质量的影响及试验研究[J]. 岩土工程学报, 2000, 22(4): 461-464.
[1] YANG Xiao-lin, WANG Meng-shu, WANG Shu-ren. Blasting effects on basic quality of rock mass and its experimental investigation[J]. Chinese Journal of Geotechnical Engineering, 2000, 22(4): 461-464.
[2] 王礼立.爆炸力学数值模拟中本构建模问题的讨论[J]. 爆炸与冲击, 2003, 23(2): 97-104.
[2] WANG Li-li. On constitutive modeling in numerical simulation of explosion mechanics[J]. Explosion and Shock Waves, 2003, 23(2): 97-104.
[3] 李海波, 蒋会军, 赵坚, 等.动荷载作用下岩体工程安全的几个问题[J]. 岩石力学与工程学报, 2003, 22(11): 1887-1891.
[3] LI Hai-bo, JIANG Hui-jun, ZHAO Jian, et al. Some problems about safety analysis of rock engineering under dynamic load[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(11): 1887-1891.
[4] 杨军, 金乾坤, 黄风雷.岩石爆破理论模型及数值计算[M]. 北京: 科学出版社, 1999.
[5] 吴德伦, 叶晓明.工程爆破安全振动速度综合研究[J]. 岩石力学与工程学报, 1997, 16(3): 266-273.
[5] WU De-lun, YE Xiao-ming. A comprehensive review and commendation of blast vibration safety velocity[J]. Chinese Journal of Rock Mechanics and Engineering, 1997, 16(3): 266-273.
[6] 罗勇, 沈兆武.炮孔合理堵塞长度的研究[J]. 岩土工程技术, 2006, 20(1): 72-74.
[6] LUO Yong, SHEN Zhao-wu. Study on stemming length in hole charged blasting[J]. Geotechnical Engineering Technique, 2006, 20(1): 72-74.
Options
文章导航

/

〈 〉