Numerical Simulation on Stability of Enziping 2# Landslide Mass

WANG Jang-feng; DU Chun-xue; LI Nan; GUO Lin-fang

doi:10.11988/ckyyb.20171360

PDF(3124 KB)

Journal of Changjiang River Scientific Research Institute ›› 2019, Vol. 36 ›› Issue (7) : 77-82. DOI: 10.11988/ckyyb.20171360

ROCK-SOILENGINEERING

Numerical Simulation on Stability of Enziping 2^# Landslide Mass

WANG Jang-feng, DU Chun-xue, LI Nan, GUO Lin-fang

Author information +

History +

Abstract

The Enziping 2^# landslide is a typical bedrock bedding landslide located at about 8.6 km downstream of Baihetan Hydropower Station. We analyzed the stability of the landslide qualitatively by means of physical simulation tests, and meanwhile discussed the laws of displacement, stress, and deformation changes under different working conditions via numerical simulation based on engineering investigation data. Results suggest that the combination of physical simulation and numerical simulation is an effective approach to analyzing the causes of landslide formation. The displacement of landslide increased gradually from bedrock to sliding body, with the maximum displacement reaching 185 cm under flood level condition, and the deformation mainly occurring in sliding body. The maximum tensile stress was found at the underwater accumulation of the landslide. It natural state, the landslide was stable, and the safety coefficient was 1.065 6; under flood level condition, the safety factor of landslide reduced to 0.76 when the landslide tended to be unstable and the front edge of the slide was likely to suffer from local buckling down.

Key words

slope engineering / stability analysis / safety factor / physical modeling / numerical simulation / Enziping 2^# landslide mass

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

WANG Jang-feng, DU Chun-xue, LI Nan, GUO Lin-fang. Numerical Simulation on Stability of Enziping 2^# Landslide Mass[J]. Journal of Changjiang River Scientific Research Institute. 2019, 36(7): 77-82 https://doi.org/10.11988/ckyyb.20171360

References

[1] 李廷强,唐军,唐定洪,等. 四川丹巴县特大型滑坡形成原因及稳定性分析[J].中国地质灾害与防治学报, 2007,18(9):16-18,24.
[2] 梁利喜,许强,刘天翔,等.四川某滑坡成因机制分析及稳定性评价研究[J].水土保持研究,2007,14(2):189-190,193.
[3] 吕俊磊,胡卸文,顾成壮,等.四川省南江县下两中学滑坡成因机制分析与稳定性评价[J].中国地质灾害与防治学报,2015,26(4):12-17.
[4] 张云祥,王小群,刘毅,等.四川某水库右坝肩滑坡成因机制及稳定性分析[J].工程地质学报,2009,17(3):335-342.
[5] 韩祥森,黄润秋,裴向军. 四川某水电站新桥1^#滑坡体成因及稳定性分析[J].水土保持研究,2006,13(3):146-148,150.
[6] 胡田飞,刘建坤. 复杂边坡三维地质建模技术及稳定性分析方法[J].防灾减灾工程学报,2016,36(4):580-587.
[7] 饶运章, 张学焱, 利坚, 等. 边坡安全系数与滑坡概率关系分析[J].raybet体育在线院报,2017,34(5):63-67.
[8] 周玉县,郑善喜,黄晓锋. 某水电站左坝肩蠕滑堆积体的动力稳定性分析[J].南水北调与水利科技, 2016,14(2):1-6.
[9] 肖志勇,邓华锋,李建林,等. 库水位间歇性下降对堆积体滑坡稳定性的影响[J].raybet体育在线院报,2016,33(8):114-119.
[10]罗渝, 何思明, 何尽川. 降雨类型对浅层滑坡稳定性的影响[J].地球科学——中国地质大学学报,2014,39(9):1357-1363.
[11]俞伯汀,孙红月,尚岳全,等. 浙江下山滑坡特征及稳定性分析[J]. 岩石力学与工程学报, 2006,25(增1):2875-2881.
[12]刘艺梁, 江南, 易庆林,等.库水位涨落条件下谭家湾滑坡稳定性演化分析[J].水力发电,2017,43(7):26-30.
[13]张少杰,韦方强,刘敦龙,等. 基于极限平衡方程和水文模拟的坡体稳定性分析[J].应用基础与工程科学学报, 2016,24(6):1181-1192.
[14]张夏冉,殷坤龙,夏辉,等.渗透系数与库水位升降对下坪滑坡稳定性的影响研究[J].工程地质学报,2017,25(2):488-495.
[15]杨帆,汤明高. 三峡水库蓄水条件下树坪滑坡变形特征及稳定性分析[J].水电能源科学,2017,35(3):142-145,133.
[16]张小勇,李晓军. 高速公路滑坡稳定性离散元模拟研究[J].地下空间与工程学报, 2016,12(增刊):380-385,403.
[17]李宏杰,戴福初,杨军,等.某滑坡蓄水后的三维稳定性数值分析[J].水文地质工程地质,2007,34(6):59-62.