多点输入条件下的土质边坡地震反应  

Seismic Response of Soil Slope Based on the Multi-point Input

作　　者：景鹏旭 杨清逸 JING Pengxu;YANG Qingyi(National Earthquake Response Support Service,Beijing 100049,China;Chinese Academy of Governance,Beijing 100089,China;Tsinghua Holdings Human Settlements Environment Institute,Beijing,100085 China)

机构地区：[1]中国地震应急搜救中心,北京100049 [2]中共中央党校(国家行政学院),北京100089 [3]北京清控人居光电研究院有限公司,北京100085

出　　处：《华北地震科学》2021年第1期17-22,共6页North China Earthquake Sciences

基　　金：中国地震应急搜救中心青年基金(SJ1901)。

摘　　要：以二维土质边坡模型为例,地震输入方式分别采取单点输入和多点输入,考虑其土层地震反应、主应力极值等特征,分析单点、多点输入的差异;在此基础之上,探讨单点输入与多点输入下坡高、坡角的变化对土质边坡模型安全系数的影响。结果显示,在地震工程抗震设计时采用多点输入比单点输入更加安全、更符合实际情况。In this paper,we take the two-dimensional soil slope as an example,considering the multi-point input to explore seismic response analysis,compare the single-point seismic input and the multi-point input so as to provide reference for the seismic design of the slope.The results show that multi-point input is safer and more practical than single point input in seismic design.

关 键 词：地震反应分析 单点输入 多点输入 安全系数 

分 类 号：P315.93[天文地球—地震学]