Article
Computer Science, Interdisciplinary Applications
Jinqing Jia, Shiyuan Ju
Summary: In slope stability analysis, the strength reduction method (SRM) combined with the finite element method (FEM) can directly obtain the factor of safety (FOS) of complex slopes, but it cannot directly locate the critical slip surface in the plastic zone. A cluster-based method for locating the critical slip surface was proposed in this study to solve this problem. The method uses the various parameters calculated by FEM and treats each node in the finite element model as a data point. It classifies all nodes into two classes using clustering algorithm, and the boundary between them is the critical slip surface. The effectiveness of the proposed method was demonstrated through examples and comparison with other methods.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Computer Science, Interdisciplinary Applications
Jiayi Ding, Jianfang Zhou, Wei Cai, Dingcong Zheng
Summary: The study introduces a modified optimization algorithm to accelerate the determination speed of critical slip surfaces in slope reliability analysis. By combining with subset simulation method, the algorithm demonstrates good convergence rate and effectiveness in four examples of soil slopes.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Chemistry, Multidisciplinary
Yongfeng Cheng, Zhibao Nie, Chao Han, Shijun Ding, Kaiyuan Liu
Summary: The finite element-strength reduction method is used in two-dimensional slope stability analysis for elastic-perfectly plastic material, with the failure criterion of plastic zone penetration. The critical slip surface is determined using wavelet packet analysis, showing that this proposed method is reasonable and effective when compared with Spencer's method.
APPLIED SCIENCES-BASEL
(2021)
Article
Geosciences, Multidisciplinary
Mingwei Guo, Jiahang Li, Xuechao Dong
Summary: Slope-stability assessment involves determining the critical slip surface and calculating the corresponding factor of safety. This research introduces the vector sum method based on force-vector characteristics and calculates the factor of safety directly using the force limit equilibrium equation. The analysis and calculations demonstrate the rationality and feasibility of this method in slope stability assessment.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Yibiao Liu, Weizhong Ren, Chenchen Liu, Guijun Fu, Wenhui Xu, Simin Cai
Summary: The proposed OS-ELM-MCS method combines the OS-ELM with the MSQP algorithm to search for probabilistic critical slip surfaces with arbitrary shapes, allowing for reliability and deterministic analysis under the same algorithm framework. The results of the study verify the superior accuracy and time performance of this method compared to traditional algorithms, suggesting the necessity of combining reliability and deterministic analysis to improve the credibility of stability analysis results.
Article
Green & Sustainable Science & Technology
Ancuta Rotaru, Florin Bejan, Dalia Almohamad
Summary: This paper investigates various methods used in slope stability analysis and compares their effects on safety factors and critical slip surface shape and center. The results show that traditional limit equilibrium methods and shear strength reduction methods may not provide accurate estimations of slope failure probability, while the finite element method's accuracy is affected by the choice of slope geometry and mesh density.
Article
Engineering, Geological
Zhenning Su, Longtan Shao
Summary: A new three-dimensional slope stability analysis method is proposed based on the finite element method for stress calculation. The method can easily calculate both local and global safety factors of the slip surface and uses an improved ellipsoidal slip surface construction method and two-stage particle swarm optimization to search for the critical slip surface more accurately. The study reveals the influence of various factors on the calculation results and validates the effectiveness of the proposed method through numerical examples and comparison with the strength reduction method.
ENGINEERING GEOLOGY
(2021)
Article
Engineering, Geological
Jiaping Sun, Tiantang Yu, Pingting Dong
Summary: This work proposes a novel approach combining the minimum potential energy principle with the pseudo-dynamic method to determine the safety factor of reinforced slopes. By solving the mobilized shear stress on the slip surface using the moment equilibrium equation and introducing the elastic foundation coefficient, the slope stability is evaluated by calculating the ratio of the anti-sliding moment to the sliding moment. The method is efficient and accurate, and the influence of various factors on the safety factor is examined.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Zuyu Chen, Naixin Wang, Lin Wang, Ping Sun, Bo Chen
Summary: This paper provides an in-depth study of the upper-bound slope stability analysis method (EMU) introduced by Donald and Chen, demonstrating its theoretical background, numerical method, and potential applications in engineering problems. The paper also discusses semi-empirical approaches to factors accounting for soil weight, as well as provides a computer program for numerical bearing analysis without the need for semi-empirical factors.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Computer Science, Interdisciplinary Applications
Yifan Chen, Hongsheng Li, Hang Lin, Yixian Wang, Yanlin Zhao, Yizhou Chen
Summary: Previous studies in slope stability research focused on safety factor calculations, neglecting critical slip line recognition and extraction. This study proposes an automatic recognition and rapid extraction method for the slip line of a slope, utilizing a modified k-medoid clustering algorithm to separate slip mass and stable mass based on horizontal displacement differences of nodes. The boundary is considered the critical slip line. For slopes requiring high slip line accuracy, discrete point networks are recommended to be arranged at custom intervals in the slip region, with horizontal displacement calculated using an inverse transformation method. The accuracy of slip line identification and extraction is improved using the modified k-medoid clustering algorithm, reducing grid size influence and subjective definitions.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Engineering, Geological
Hui Liu, Junjie Zheng, Rongjun Zhang, Wenyu Yang, Yifan Guo
Summary: This paper proposes a method for identifying representative slip surfaces (RSSs) from the perspective of system failure probability. By using the second-order reliability method (SORM) and multimodal optimization, the method is capable of identifying RSSs with significant contributions and providing a proper estimate of the system failure probability.
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2023)
Article
Construction & Building Technology
Aiqing Zhang, Jinyun Li, Youheng Zhang
Summary: A new method for determining the critical slip surface of cohesive soil slopes is proposed in this study, which involves measuring the number of simple penetrations and calculating slope bearing capacity to identify points of abrupt change and determine the critical slip surface. The feasibility and accuracy of this method are validated by comparing test results with those from finite element method and theoretical calculations, demonstrating its capability in analyzing slope stability for cohesive soil.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Engineering, Civil
A. R. Kalantari, A. Johari, M. Zandpour, M. Kalantari
Summary: Evaluation of stability and determination of the Critical Slip Surface (CSS) for soil slopes are important in geotechnical engineering. The stability and CSS are affected not only by soil heterogeneity, but also by borehole location and soil parameter prediction methods. This study combines Finite Element Method (FEM) and geostatistical method to evaluate reliability characteristics and CSS distribution with consideration of known data, borehole location, load uncertainty, and soil heterogeneity. Results show that conditional simulation improves the accuracy of Factor of Safety (FS) distribution by up to 14% compared to unconditional simulation, and reduces the related standard deviation by 4% to 40%. Conditional simulation also reduces uncertainty of the slip surface and unsafe distance from the slope edge. Soil heterogeneity has a major impact on CSS distribution and induces local CSS that cannot occur on homogeneous slopes.
TRANSPORTATION GEOTECHNICS
(2023)
Article
Computer Science, Interdisciplinary Applications
Tomas Kadlicek, David Masin
Summary: This paper introduces a surface layer method for analyzing slope stability using finite elements, which is validated and demonstrated in a practical application.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Computer Science, Interdisciplinary Applications
Enrico Soranzo, Carlotta Guardiani, Ahsan Saif, Wei Wu
Summary: In this study, a numerical procedure for locating the critical slip surface of slopes using the method of slices is proposed. The Deep-Q Learning algorithm is employed to determine a non-circular slip surface. It is shown that this method is flexible and can accommodate other Limit Equilibrium Methods, and its accuracy and efficiency are demonstrated through comparison with other search methods.
COMPUTERS & GEOSCIENCES
(2022)
Article
Engineering, Geological
H. M. Chen, Z. Y. Zhao, L. Q. Choo, J. P. Sun
ROCK MECHANICS AND ROCK ENGINEERING
(2016)
Article
Construction & Building Technology
Zhipeng Xu, Zhiye Zhao, Jianping Sun, Lei He, Wen Nie
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2015)
Article
Engineering, Mechanical
Jian-Ping Sun, Zhi-Ye Zhao, Yi-Pik Cheng
ACTA MECHANICA SINICA
(2013)
Article
Engineering, Geological
Jianping Sun, Zhiye Zhao
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2013)
Article
Engineering, Civil
Jianping Sun, Jiachun Li, Qingquan Liu, Huiqin Zhang
JOURNAL OF HYDROLOGIC ENGINEERING
(2011)
Article
Engineering, Geological
W. Nie, Z. Y. Zhao, Y. J. Ning, J. P. Sun
ROCK MECHANICS AND ROCK ENGINEERING
(2014)
Article
Construction & Building Technology
Jianping Sun, Zhiye Zhao, Yun Zhang
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2011)
Article
Construction & Building Technology
Huimei Chen, Zhiye Zhao, Jianping Sun
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2013)
Article
Engineering, Geological
Qian Liu, Zhiye Zhao, Wen Nie, Jianping Sun, Fei Xiao
ROCK MECHANICS AND ROCK ENGINEERING
(2020)
Editorial Material
Energy & Fuels
Chun Zhu, Xiaojie Yang, Zhigang Tao, Jianping Sun
Article
Construction & Building Technology
Lanting Wu, Jianping Sun, Yuqiang Tong
Summary: A series of numerical scenarios simulated by PLAXIS software were conducted to study the influence of different design parameters on excavation design, especially on strut force, retaining wall deflection, and bending moment. The results revealed that using a single set of parameters may pose high risk in predicting the performance of the retaining system, emphasizing the need for sensitivity analysis to evaluate the effects of parameter variations within a reasonable range.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Engineering, Geological
Zhipeng Xu, Zhiye Zhao, Jianping Sun, Ming Lu
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2015)
Article
Engineering, Multidisciplinary
Y. J. Ning, Z. Y. Zhao, J. P. Sun, W. F. Yuan
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES
(2012)
Proceedings Paper
Mechanics
J. P. Sun, Z. Y. Zhao
RECENT PROGRESSES IN FLUID DYNAMICS RESEARCH - PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON FLUID MECHANICS
(2011)
Article
Engineering, Geological
Jianping Sun, Youjun Ning, Zhiye Zhao
GEOMECHANICS AND GEOENGINEERING-AN INTERNATIONAL JOURNAL
(2011)
