摘要
为研究三峡库区岸坡在不同状态下的稳定性,选取三峡库区秭归地区某碎石土岸坡做了快剪试验,获得了该碎石土在天然状态和降雨状态下的抗剪强度指标,并运用SLOPE/W软件模拟边坡,采用Bishop方法计算了两种状态下的安全系数,发现天然状态下边坡稳定,降雨状态下边坡不稳定,进而采用抗滑桩模拟治理不稳定边坡的稳定性,并给出了抗滑桩的设计尺寸。
To study the slope stability of Three Gorges Reservoir area in different states,this paper executes series quick direct shear tests by taking gravel soil slope of Zigui area as an example.The shear strength indexes are obtained under the gravel soil moisture content in natural and formulated after rain moisture content.The SLOPE/W software is used to simulate the slope.The Bishop method is applied to calculate the safety factors in two states.The results show that the slope is stable in natural state,but unstable in rainfall weather;for the unstable slope,we use anti-slide piles to govern,and give the design sizes of anti-slide piles as well.
出处
《水电能源科学》
北大核心
2014年第9期131-134,共4页
Water Resources and Power
关键词
三峡库区
岸坡稳定性
直剪试验
含水率
安全系数
抗滑桩
Three Gorges Reservoir region
slope stability
direct shear test
moisture content
safety factor
slide-resistant pile
