Three-dimensional strength-reduction finite element analysis of slopes: geometric effects

Nian, Tingkai; Huang, Runqiu; Wan, S. S.; Chen, G. Q.

doi:10.1139/t2012-014

Cited by 109 publications

(36 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This example is analyzed in [31]. Table 3 presents the results of the method proposed in [31] and methods developed by other researchers for stability analysis of the earth slope in Figure 6.…”

Section: Examplementioning

confidence: 99%

“…Table 3 presents the results of the method proposed in [31] and methods developed by other researchers for stability analysis of the earth slope in Figure 6. The slope in this gure lacks the weak layer and groundwater parameters.…”

Section: Examplementioning

confidence: 99%

“…The fewer simplifying assumptions lead to low errors compared to other methods. [31] 2.187 3D-LEM CLARA (software package) by Hungr (1987) [31] 2.167 3D-FEM by Gri ths and Marquez (2007) [31] 2.17 Nian et al (2012) [31] 2.15 Proposed method 2.235…”

Section: Examplementioning

confidence: 99%

See 2 more Smart Citations

A New Method for Three Dimensional Stability Analysis of Earth Slopes

Hajiazizi

Kilanehei

2017

Scientia Iranica

View full text Add to dashboard Cite

Abstract. In this research, a new three-dimensional limit equilibrium method was developed. In the proposed method, the slip surface was assumed to be spherical and slices were assumed along the slip surface radius converging to a point. Moreover, force and moment equilibrium equations were used. In order to calculate Factor of Safety (FS) with the proposed method, a code was developed for two-and three-dimensional states. The model used the iteration (trial and error) method to simultaneously satisfy force and moment equilibrium equations. In order to ensure convergence of the numerical model developed in the three-dimensional state, the under-relaxation method was used in the trial and error operations. In examples, the value of FS obtained by the proposed method was 2.5 to 12 percent higher than those obtained by the other methods. In order to validate the proposed method and assess the functionality of the three-dimensional numerical model, a few examples were solved under di erent circumstances; the results were properly compliant with the results of other methods.

show abstract

Section: Examplementioning

confidence: 99%

Section: Examplementioning

confidence: 99%

See 1 more Smart Citation

A New Method for Three Dimensional Stability Analysis of Earth Slopes

Hajiazizi

Kilanehei

2017

Scientia Iranica

View full text Add to dashboard Cite

show abstract

“…Three-dimensional analyses are generally considered to be useful for corners of embankments (see, e.g., [18][19][20][21]). A nite element program for threedimensional models PLAXIS 3D [22] was utilized to simulate gradual raisings of the corner of Aitik tailings dam up to a height of 76 m. The gradual raisings of the dam corner were simulated in various stages.…”

Section: Introductionmentioning

confidence: 99%

Comparison of three dimensional and two dimensional axisymmetric finite element analyses of a corner section of a tailings da

et al. 2017

View full text Add to dashboard Cite

Abstract. This paper presents three-dimensional (3D) and two-dimensional (2D) axisymmetric nite element analyses of a corner of a tailings dam. The analyses were performed to: (i) locate tension and/or low-compression zones and evaluate slope stability during sequential raising of the dam corner, and (ii) nd whether the results of 2D axisymmetric analyses could be reliable for the dam corner. The corner is a potentially weak section of the dam, where tension and/or low-compression zones may develop. Development of such zones inside the dam corner can lead to cracks and initiation of internal erosion. The results of both the 3D and 2D axisymmetric analyses indicated that (i) tension and/or lowcompression zones were located in vicinity of surface of the dam corner mainly above the phreatic level, and (ii) the dam corner was stable up to the planned height if it was gradually strengthened with rock ll berms on the downstream side. The results of 2D axisymmetric analyses showed a fairly good agreement with those of 3D analyses. It is concluded that 2D axisymmetric analyses are appropriate for this dam corner. This implies that signi cant computational time can be saved by utilizing 2D analyses instead of 3D analyses.

show abstract

“…The sec ond mod i fied shear strength re duc tion method (MSSR) is a mod i fi ca tion of the SSR method and, given more com pli cated slope shape and dif fer en ti ated soil lay ers, al lows the de ter mi na tion of po ten tial routes of sta bil ity loss lines (slide), con trary to the SSR method of only a sin gle line. Many 3D an a lyt i cal meth ods based on nu mer i cal meth ods have been pre sented by, for ex am ple, Hicks and Spencer (2010) and Li et al (2010) with ref er ence to slopes of an elon gated shape and by Nian et al (2012) and Zhang et al (2013) with ref er ence to slopes with the ef fect of turn ing a cor ner.…”

Section: Introductionmentioning

confidence: 99%

Stability estimation of slopes having their slip surface determined by means of the STAB-3D method based on sliding body equilibrium analysis

Ukleja

2016

View full text Add to dashboard Cite

ulty of Civil En gi neer ing and Ar chi tec ture, Katowicka 48, 45-061 Opole, Po land Ukleja, J., 2016. Sta bil ity es ti ma tion of slopes hav ing their slip sur face de ter mined by means of the STAB-3D method based on slid ing body equi lib rium anal y sis. Geo log i cal Quar terly, 60 (3): 597-609, doi: 10.7306/gq.1276Most of the three-di men sional anal y ses of land slides are based on sim ple 2D meth ods ana lys ing cho sen char ac ter is tic flat sec tions of the ana lysed slid ing body. As sump tions of the method of flat limit equi lib rium anal y sis for a spa tial so lu tion have been elab o rated. This is a com bi na tion of 2D anal y sis of flat sec tional views and 3D anal y sis of the land slide's slid ing body, which dis re gards any stress that does not af fect equi lib rium. It is as sumed, how ever, to ap ply only when deal ing with structural slope fail ure (i.e. when the soil lay ers have the pre dis po si tion to shape the de ter mined slip sur face with a con sis tent decrease and ex plicit slide di rec tion). This can also ap ply when ex am in ing the sta bil ity of a scarp or slope for the lay ered soil of po ten tial slip sur faces and slide di rec tion to be de fined. The ba sic as sump tions, equi lib rium equa tions, and prac ti cal us age of the method have been de scribed for an ex em plary land slide. This method al lows one to de fine in a straight for ward man ner the sta bil ity of slopes, to plan a way of pre vent ing po ten tial land slides, and to con trol those that have al ready arisen.

show abstract

Three-dimensional strength-reduction finite element analysis of slopes: geometric effects

Cited by 109 publications

References 30 publications

A New Method for Three Dimensional Stability Analysis of Earth Slopes

A New Method for Three Dimensional Stability Analysis of Earth Slopes

Comparison of three dimensional and two dimensional axisymmetric finite element analyses of a corner section of a tailings da

Stability estimation of slopes having their slip surface determined by means of the STAB-3D method based on sliding body equilibrium analysis

Contact Info

Product

Resources

About