摘要
采用有限元的有限差分分析方法对新疆某工程砂砾石高边坡进行静力分析,结果表明:天然状态下在自重应力作用下,单元整体向边坡外侧移动,且最大位移发生在大坝下游待开挖边坡及其下游侧边坡范围;施工开挖过程,竖向累计位移最大达到8.6 cm,表现为向上回弹;侧向累计位移最大达到2.2 cm,表现为向边坡外侧位移;边坡开挖后整体稳定安全系数达到1.47,说明开挖边坡后明显提高了边坡安全系数。
Static analysis of sand gravel high slope was conducted by finite difference analysis method for a project inXinjiang. The results of analysis demonstrate that under natural condition and action of gravity stress, the whole unitmove outward the slope, and the maximum displacement occurs at the slope to be excavated right downstream of themain dam and its downstream bank slope. In the course of excavation, the cumulative vertical maximum displace-ment is 8.6 cm, showing upward rebound; the cumulative lateral maximum displacement is 2.2 cm, showing outwardmovement. The overall stability coefficient is 1.47, indicating the slope safety coefficient is improved significantly af-ter excavation.
作者
王多财
WANG Duo-cai(Xinjiang Survey and Design Institute for Water Resources and Hydropower, Urumqi 830000, Chin)
出处
《广西水利水电》
2018年第2期60-63,共4页
Guangxi Water Resources & Hydropower Engineering
关键词
砂砾石
高边坡
静力分析
数值模拟
Sand gravel
high slope
static analysis
numerical simulation
