当前位置: X-MOL 学术Environ. Earth Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Three-dimensional assessment of cracked slopes with pore water pressure using limit analysis
Environmental Earth Sciences ( IF 2.8 ) Pub Date : 2021-09-17 , DOI: 10.1007/s12665-021-09932-9
Pingping Rao 1, 2 , Jian Wu 1 , Qingsheng Chen 3 , Sanjay Nimbalkar 4
Affiliation  

The three-dimensional analysis of slope stability with cracks is crucial to investigate the mechanism of slope landslides to achieve desired accuracy. In the frame of limit analysis, the kinematic approach is adopted to evaluate the three-dimensional slope stability with cracks, based on a modified 3D horn-like rotation mechanism including below-toe failure. The effect of pore water pressure is considered using a commonly adopted coefficient ru. Stability charts are presented for convenience in the form of the dimensionless critical height γH/c as well as the factor of safety without iterations. The results indicate that the presence of pore water pressure decreases the stability of slopes and increases the depth of the crack. Gentle slopes with large values of ru are found to be more prone to below-toe failure.



中文翻译:

基于孔隙水压力的裂缝边坡三维极限分析评价

带裂缝的边坡稳定性三维分析对于研究边坡滑坡的机理以达到预期的精度至关重要。在极限分析框架下,基于包括趾下破坏在内的改进的3D角状旋转机制,采用运动学方法评估带裂缝的三维边坡稳定性。使用普遍采用的系数r u来考虑孔隙水压力的影响。为方便起见,稳定性图表以无量纲临界高度γH / c的形式呈现以及没有迭代的安全系数。结果表明,孔隙水压力的存在降低了边坡的稳定性并增加了裂缝的深度。发现具有较大r u值的平缓坡度更容易出现趾下故障。

更新日期:2021-09-17
down
wechat
bug