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    					| 饱水软化效应下砂质泥岩边坡三维稳定性上限分析 |  
						| 张标 瞿凡 蒋毅 |  
					| 湖南科技大学,湖南湘潭 411201 |  
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    					| Upper bound limit analysis for stability of 3D slopes of sandy mudstone considering the effect of saturation softening |  
						| Zhang Biao Qu Fan Jiang Yi |  
						| Hunan University of Science and Technology, Xiangtan 411201, China |  |