大连新港中石油国际储备库边坡稳定分析  

Stability Analysis on the North Slope for Tank Farms at CNPC's Xingang Site

作　　者：刘天宇 

机构地区：[1]中油辽河工程有限公司,辽宁盘锦124010

出　　处：《土工基础》2013年第3期23-25,共3页Soil Engineering and Foundation

摘　　要：利用圆弧条分法与强度折减法对大连新港中石油国际储备库北区边坡稳定性进行了计算分析,结果表明,由于圆弧法不能准确确定滑移面,导致计算结果偏于危险,而强度折减法计算结果则要求必须对不利地质条件下的边坡进行加固处理,实践证明,其结果是可靠的。A high slope of China National Petroleum Corporation （CNPC） International Reserve tank farm in Xingang, Dalian is at the north of the site and is adjacent to the Xingang Port. The total length of this slope is 1210 meters and the elevations at the crest of the slope are greater than 30 meters with a maximum elevation of 107.8 meters. The elevation changes in the crosssectional directions are also large. The inclination of the rock joints is unfavorably day-lighted to the slope; further, there is a loose and broken bedrock zone at the top. Both limit equilibrium based circular slicing and the finite element analysis based strength reduction methods are utilized to evaluation the stability of this slope. The results indicate that the circular slicing method could not accurately determine the potential sliding surface and the results are not reliable. The strength reduction method results indicate that the slope stabilization mitigation measures are necessary.

关 键 词：边坡稳定 圆弧条分法 强度折减法 

分 类 号：P642[天文地球—工程地质学]