TY - JOUR

T1 - High rock slope stability analysis using the enriched meshless shepard and least squares method

AU - Zhu, Hehua

AU - Zhuang, Xiaoying

AU - Cai, Yongchang

AU - Ma, Guowei

N1 - Funding information: The authors gratefully acknowledge the support of National Natural Science of China, NSFC (10972161, 40672184). The second author is supported by a Dorothy Hodgkin Postgraduate Award from UK EPSRC at Durham University. The fourth author was invited to be a Kwang Hua Chair Professor in Tongji University for three months in 2010. The support of Kwang Hua fund for college of Civil Engineering, Tongji University, is also acknowledged.

PY - 2011/6

Y1 - 2011/6

N2 - The meshless methods are particularly suitable for modeling problems with discontinuities such as joints in rock mass. The meshless Shepard and least squares (MSLS) method is a newly developed meshless method, which overcomes some limitations with other meshless methods. In the present paper, the MSLS method is extended for modeling jointed rock mass and the joint is modeled as discontinuity governing the near-field stress. A substantial high rock slope by the dam shoulder of Jinping Hydropower Station is analyzed by the developed method. Safety factors are evaluated based on the stress results along potential slip surfaces and compared with the conventional slice methods. The results demonstrate the feasibility of using the MSLS method in rock slope stability analysis and also reveal some interesting differences from the conventional slice methods. Some findings and outstanding issues demonstrated in this study are discussed in the end, which can be the topics for future development.

AB - The meshless methods are particularly suitable for modeling problems with discontinuities such as joints in rock mass. The meshless Shepard and least squares (MSLS) method is a newly developed meshless method, which overcomes some limitations with other meshless methods. In the present paper, the MSLS method is extended for modeling jointed rock mass and the joint is modeled as discontinuity governing the near-field stress. A substantial high rock slope by the dam shoulder of Jinping Hydropower Station is analyzed by the developed method. Safety factors are evaluated based on the stress results along potential slip surfaces and compared with the conventional slice methods. The results demonstrate the feasibility of using the MSLS method in rock slope stability analysis and also reveal some interesting differences from the conventional slice methods. Some findings and outstanding issues demonstrated in this study are discussed in the end, which can be the topics for future development.

KW - Crack

KW - high rock slope

KW - meshless

KW - MLS

KW - MSLS

KW - slope stability

UR - http://www.scopus.com/inward/record.url?scp=79960119063&partnerID=8YFLogxK

U2 - 10.1142/S0219876211002551

DO - 10.1142/S0219876211002551

M3 - Article

AN - SCOPUS:79960119063

VL - 8

SP - 209

EP - 228

JO - International Journal of Computational Methods

JF - International Journal of Computational Methods

SN - 0219-8762

IS - 2

ER -