基于区域地震活动性参数的断层错动量概率分析方法  

Seismic hazard analysis method for fault rupture and dislocation based on regional seismicity parameters

作　　者：王丽萍[1] 张伟 罗文文[1] 蒋利成 WANG Liping;ZHANG Wei;LUO Wenwen;JIANG Licheng(Chongqing University of Science and Technology,Chongqing 401331,China)

机构地区：[1]重庆科技学院建筑工程学院,重庆401331

出　　处：《自然灾害学报》2018年第4期166-170,共5页Journal of Natural Disasters

基　　金：重庆市教委科学技术研究项目(KJ1601308);重庆市自然科学基金项目(cstc2018jcyj A1266;cstc2018jcyj AX0052);重庆科技学院校内科研基金项目(CK2015B12;CK2016Z14;ck2017zkyb016)~~

摘　　要：许多情况下长线性工程结构不可避免跨越活动断层,一旦断层错动将会引起不可恢复的破坏。断层错动量是结构抗断设计输入依据。为与以概率论为基础的地面震动危险性在形式上协调,本文以断层错动危险性分析方法为基础,通过引入地震引发错动的概率和考虑区域地震活动性参数,提出基于区域地震活动性参数的断层错动量概率分析方法。并将此方法应用于乌鲁木齐地铁隧道跨越断层错动量风险评估。Long-linear engineering structures inevitably cross the active fault in many cases,they will suffer irreversible damage due to fault rupture and dislocation. The magnitude of fault rupture and dislocation is the input basis for structural fault resistance design. In order to coordinate the risk of ground motion based on probability theory,a modified probability method for estimating the hazard level of fault rupture and dislocation is put forward in this paper. The probability of fault rupture induced dislocation,and regional seismicity parameters are introduced in the modified method. Finally,a project case used to illustrate the calculation procedure is given.

关 键 词：长线性工程结构 活动断层 错动量 概率性分析方法 地铁隧道 

分 类 号：P315.92[天文地球—地震学] X43[天文地球—固体地球物理学]