摘要
岩溶陷落柱是岩溶动力地质作用的产物,是我国华北煤田广泛发育的一种地质现象,我国华北煤田因陷落柱突水而发生的特大突水灾害较多,但对陷落柱的探测有待于进一步深入的研究。针对这一情况,采用射线追踪理论和地震数值模拟方法,研究陷落柱的地震数值模拟,并以淮南地区的岩溶陷落柱为例,探讨陷落柱在水平地层和倾斜地层中的地震数值模拟。运用GXⅡ模拟软件,采用自激自收的数值模拟方法,验证锥形陷落柱在自激自收条件下的地震响应并模拟产生了理想条件下的地震道,对相似条件下的煤矿陷落柱的探测和模拟具有一定的理论及应用价值。
Karst collapse column was product of Karst dynamic geologic process,and was geological phenomenon which was extensively developed in north China coalfields.There were too many superlarge water-inrush disasters caused by Karst collapse column in north China.The detection of Karst collapse column needed to be further studied so far.This paper adopted ray tracing theory and the seismic numerical modeling method to study the seismic numerical modeling of Karst collapse columns.The paper took the Karst collapse column in Huainan for example to discuss the seismic numerical modeling of Karst collapse column in level strata and tilt strata.This paper used GXⅡ simulation sof tware and adopted the numerical modeling method of zero of fset to verify the seismic response of tapered Karst collapse column under the condition of zero of fset and simulated the seismic of ideal condition.The research of this paper on the Karst collapse columns in the detection and simulation had certain theory and application value for mines under the similar conditions.
出处
《煤炭与化工》
CAS
2014年第5期1-5,共5页
Coal and Chemical Industry
关键词
岩溶陷落柱
地震数值模拟
自激自收
Karst collapse column
seismic numerical modeling
zeroof fset