有限差分数值模拟在跨断层资料中的应用  

Application of Finite Difference Numerical Simulation in Cross Fault Data

作　　者：荆红亮[1,2] 郭国祥[1,2] 靳宝萍 张聪聪[1,2] 杨静[1,2] 李军[1,2] 韩磊[1,2] JING Hong-liang;GUO Guo-xiang;JIN Bao-ping;ZHANG Cong-cong;YANG Jing;LI Jun;HAN Lei(Linfen earthquake monitoring central station of Shanxi Earthquake Agency, Linfen, Shanxi 041000, China;National Continental Rift Valley Dynamics Observatory of Taiyuan, Taiyuan, Shanxi 030025, China)

机构地区：[1]山西省地震局临汾地震监测中心站,山西临汾041000 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2021年第2期32-35,共4页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-2036)。

摘　　要：针对临汾中心地震台峪里跨断层Y5-Y4测段高差2018年6月至2020年9月出现的累计8.62 mm的张性变化,以及广胜寺测线2017年8月至2018年4月(G1-G2)高差曲线加速张性变化,建立FLAC 3D有限差分模型,定量分析峪里建筑物对Y5点点位影响的数值解,及广胜寺场地内施工与G1点点位的变化,计算两种荷载下的模拟沉降量。通过与实际观测数值对比,得出建筑物、施工与峪里、广胜寺的高差测值变化之间的关系。Aiming at the tension variation of 8.62mm accumulated in the height difference of Yuli cross fault Y5-Y4 section of Linfen central seismic station from June 2018 to September 2020,and the acceleration of tension variation in the height difference curve of Guangsheng Temple line from August 2017 to April 2018(G1-G2),FLAC 3D finite difference model is established to quantitatively analyze the numerical solution of the influence of Yuli building on Y5 site and the change of Guangsheng Temple site construction and G1 site,and calculate the simulated settlement under two kinds of loads.By comparing with the actual observation data,the relationship between the building,construction and the height difference of Yuli and Guangsheng Temple is obtained.

关 键 词：跨断层测量 有限差分 沉降量 

分 类 号：P315.63[天文地球—地震学]