华中科技大学学报（自然科学版）2016，Vol.44Issue(5)：81-86,6.DOI:10.13245/j.hust.160515
地下厂房岩锚梁岩台爆破开挖精细化控制
Underground powerhouse rock-anchored crane beam rock wall blasting excavation refinement control
摘要
Abstract
A finite element analysis method was presented to stimulate process of rock blasting excava‐tion and impact of rock excavation blasting vibration velocity on beam surrounding rock′s safety per‐formance was analyzed .Taking an underground powerhouse station rock‐anchored crane beam as an example ,reasonable body shape of crane beam under over‐break condition was explored ,nine blasting evaluation indicators were presented and stability characteristics of rock‐anchored crane beam were an‐alyzed as well as rock mass and anchors in the vicinity of it .Results show that improper blasting pa‐rameters and construction methods can increase disturbance range of surrounding rock and threat oper‐ational safety in runtime .T hus ,it is advised to select reasonable blasting parameters and control body size of rock wall to meet refinement control criteria ,which sets an example for other similar projects .关键词
地下开挖/爆破分析/有限元分析/锚杆/精细化Key words
underground excavation/blasting evaluation/finite element analysis/anchors/refinement分类
建筑与水利引用本文复制引用
李冬冬,肖明,陈俊涛,赵健..地下厂房岩锚梁岩台爆破开挖精细化控制[J].华中科技大学学报（自然科学版）,2016,44(5):81-86,6.基金项目
国家重点基础研究发展计划资助项目（2015CB057904）；国家自然科学基金面上资助项目（51579191）． （）
