爆炸与冲击
爆炸與遲擊
폭작여충격
EXPLOSION AND SHOCK WAVES
2009年
6期
648-653
,共6页
爆炸力学%震源函数%有限差分数值计算源程序%地下爆炸%折合位移势
爆炸力學%震源函數%有限差分數值計算源程序%地下爆炸%摺閤位移勢
폭작역학%진원함수%유한차분수치계산원정서%지하폭작%절합위이세
mechanics of explosion%seismic source function%finite difference code%underground explosion%reduced displacement potential
利用一维球对称有限差分数值计算源程序模拟了硬岩中地下强爆炸的震源函数,给出了弹性半径处的位移、径向压力波形,得到了地下爆炸的折合位移势及其源频谱.相关计算结果与已有文献给出的结果一致.同时,对介质剪切强度与地下爆炸震源强度之间的关系进行了数值分析.研究结果可为硬岩中地下强爆炸地震耦合效应的计算提供参考.
利用一維毬對稱有限差分數值計算源程序模擬瞭硬巖中地下彊爆炸的震源函數,給齣瞭彈性半徑處的位移、徑嚮壓力波形,得到瞭地下爆炸的摺閤位移勢及其源頻譜.相關計算結果與已有文獻給齣的結果一緻.同時,對介質剪切彊度與地下爆炸震源彊度之間的關繫進行瞭數值分析.研究結果可為硬巖中地下彊爆炸地震耦閤效應的計算提供參攷.
이용일유구대칭유한차분수치계산원정서모의료경암중지하강폭작적진원함수,급출료탄성반경처적위이、경향압력파형,득도료지하폭작적절합위이세급기원빈보.상관계산결과여이유문헌급출적결과일치.동시,대개질전절강도여지하폭작진원강도지간적관계진행료수치분석.연구결과가위경암중지하강폭작지진우합효응적계산제공삼고.
The seismic source function in hard rock is numerically simulated with one dimension spherical symmetric finite difference code. The displacement and radial pressure at the elastic radius, the reduced displacement potential and source spectrum are calculated. The agreement is observed between numerical calculated value and the results achieved by other scholars. And the relationship between seismic coupling and shear strength of material is studied. This work can be regarded as the means of numerical modeling of the seismic coupling for underground nuclear explosion in hard rock.
