堤防地震液化数值模拟及动力反应分析 = Seismic liquefaction numerical simulation and dynamic response of levee embankment
为了评估青草沙水库在地震作用下的性状,利用FLIP程序分析堤基及上部堤防地震液化变形规律,比较了堤防不同位置处的残余变形、超静孔隙水压力比分布、有效应力路径等.结果表明:抗震设防烈度7度条件下,堤防结构的存在放大了地表的加速度;堤防残余变形主要发生在堤身和堤脚周围一定深度范围,地下12 m及以下土体残余变形很小;堤顶中心在地震作用下,有效高度下降较多,若此时库内处于高水位或洪水位或遭遇持续暴雨,可能发生溃堤.工程建设中,需对这些薄弱环节进行加固. To understand the performance of Qingcaosha reservoir under earthquake loa...
Saved in:
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | Chinese Chinese |
| Published: |
2013
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/94618 http://hdl.handle.net/10220/9003 http://www.cqvip.com/QK/90576A/201103/38395501.html |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | Chinese Chinese |