中国石油大学学报（自然科学版）Issue(6)：148-152,5.DOI:10.3969/j.issn.1673-5005.2014.06.022
一地震诱发工程岩体结构面滑移概率分析
Study on probability of earthquake-induced slip of geoengineering rock mass joint plane
摘要
Abstract
Based on non-stationary random vibration model, a series of ground motions were synthesized, whose statistical parameters could satisfy the randomness of a potential earthquake. In order to evaluate the stability of engineering rock mass, horizontal equivalent acceleration (HEA) of the rock mass joint plane was defined, while the earthquake response of engi-neering rock mass was calculated numerically. The maximum horizontal equivalent acceleration (MHEA) was compared with the yield acceleration of the rock mass joint plane. Based on non-linear numerical calculations and ground motion samples of an earthquake, a new approach was proposed to calculate the probability density of the MHEA of rock mass joint plane. The application of this method in seismic reliability analysis of engineering rock mass was demonstrated. The numerical computa-tion results indicate that the probability of rock mass instability under remote earthquake is below 0. 01% , while the value is up to 26. 1% under near earthquake, given the same magnitude of earthquake.关键词
工程岩体/地震稳定性/动力可靠度/水平等效加速度Key words
rock mass/earthquake stability/dynamic reliability/horizontal equivalent acceleration分类
数理科学引用本文复制引用
邓学晶,亓玉成,林倩,邹德高..一地震诱发工程岩体结构面滑移概率分析[J].中国石油大学学报（自然科学版）,2014,(6):148-152,5.基金项目
国家自然科学基金项目(51138001) （51138001）
地震行业科研专项(201208013) （201208013）
中央高校基本科研业务费专项(12CX04067A) （12CX04067A）
