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巷道岩爆孕育过程的数值模拟

李宪章 王利 李宏武 李照军 赵豪 周志琨

辽宁工程技术大学学报(自然科学版)2011,Vol.30Issue(3):369-372,4.
辽宁工程技术大学学报(自然科学版)2011,Vol.30Issue(3):369-372,4.DOI:CNKI:21-1379/N.20110611.1606.007

巷道岩爆孕育过程的数值模拟

Numerical simulation of gestation of rockburst in mining lane

李宪章 1王利 2李宏武 1李照军 1赵豪 1周志琨1

作者信息

  • 1. 大同煤矿集团轩岗煤电有限责任公司,山西原平034114
  • 2. 河南理工大学土木工程学院,焦作454000
  • 折叠

摘要

Abstract

In order to solve the layered rock-mass drill-blasting method adopted in the close two-lane tunnel construction blasting effect, based on the in-situ test method, research the blasting decay laws.. Results show that: the new tunnel blasting vibration velocity, with the increase of space explosion source into a nonlinear decreased; Vibration velocity strong direction effect, face the radial vibration weapons explosion exceeded tangential vibration, the radial vibration velocity on both tunnel and the surrounding rock's damage new plays a leading role; When using fluctuation steps excavation blasting shock wave, the stairs to the influence of both the tunnel than down the steps is remarkable. Will blasting on the new tunnel itself damage to the surrounding the influence of two adjacent tunnels and combination of comprehensive consideration, layered intrusions in the tunnel blasting parameters were optimized. This results in rock blasting engineering to have the certain reference value and significance.

关键词

巷道;岩爆;数值模拟;孕育;灾变预测

Key words

roadway/rockburst/ numeric simulation/ gestation/ catastrophe prediction

分类

矿业与冶金

引用本文复制引用

李宪章,王利,李宏武,李照军,赵豪,周志琨..巷道岩爆孕育过程的数值模拟[J].辽宁工程技术大学学报(自然科学版),2011,30(3):369-372,4.

基金项目

国家重点基础研究发展计划基金资助项目(973计划)(2005CB221500) (973计划)

辽宁工程技术大学学报(自然科学版)

OA北大核心CSTPCD

1008-0562

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