河南工程学院学报（自然科学版）
河南工程學院學報（自然科學版）
하남공정학원학보（자연과학판）
JOURNAL OF HENNAN INSTITUTE OF ENGINEERING(NATURAL SCIENCE EDITION)
2015年
2期
38-40
,共3页
减震沟%LS-DYNA%减震率%台阶爆破%数值模拟
減震溝%LS-DYNA%減震率%檯階爆破%數值模擬
감진구%LS-DYNA%감진솔%태계폭파%수치모의
damping ditch%LS-DYNA%decreasing amplitude ratio%bench blasting%numerical simulation
为了研究减震沟的减震作用，运用大型动力分析软件LS-DYNA，基于具体工况分别对有减震沟和无减震沟的露天矿台阶爆破进行数值模拟。结果表明，减震沟距离爆源越近，减震效果越好，减震率最高可达77%，为减震沟的减震效应研究和类似工况提供了理论支持。
為瞭研究減震溝的減震作用，運用大型動力分析軟件LS-DYNA，基于具體工況分彆對有減震溝和無減震溝的露天礦檯階爆破進行數值模擬。結果錶明，減震溝距離爆源越近，減震效果越好，減震率最高可達77%，為減震溝的減震效應研究和類似工況提供瞭理論支持。
위료연구감진구적감진작용，운용대형동력분석연건LS-DYNA，기우구체공황분별대유감진구화무감진구적로천광태계폭파진행수치모의。결과표명，감진구거리폭원월근，감진효과월호，감진솔최고가체77%，위감진구적감진효응연구화유사공황제공료이론지지。
In order to study the damping effect of damping ditch,the explicit nonlinear dynamic analysis finite element program LS-DYNA is used based on the specific conditions. The two different numerical models with damping ditch and without damping ditch are made respectively to study the damping effect of open-pit blasting. Numerical simulation results show that the nearer the damping ditch from the explosion source is,the better the damping effect will be,and the biggest decreasing amplitude ratio can reach to about 77%,it provides the theoretical support for the research of damping effect of damping ditch and similar conditions.
