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Evolution of slopes in over-consolidated clays
108A
843257 Spatial calculation of slope stability under defmite surcharges Bilz, P; Brodel, C; Reinhardt, K Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P367-371. Publ Rotterdam: `4. `4. Balkema, 1981 A three-dimensional method for calculating the stability of slopes of cuts and trenches that are loaded over a limited area (eg by vehicles, machinery etc) is presented. 643258 Some thoughts on rain-induced slope failures Brand, E W Proc 10th International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 Jane 1981 V3, P373-376. Publ Rotterdam: `4. A. Balkema, 1981 The mechanism is discussed by which failures occur in unsaturated soil slopes in which infiltration and pore suction play major roles. It is suggested that the shear properties of the slope material are most appropriately measured in the laboratory by increasing the pore pressure while the total stresses are maintained constant. It is hypothesized that compressive and dilatant soils will behave quite differently under conditions of water infiltration. For soils which fail slowly or for compressive soils which fail rapidly, the controlling pore pressure (suction) is probably entirely governed by the rate of infiltration. The stability of slopes in dilatant material, however, is probably controlled by pore pressures which are both infiltration-dependent and strain-dependent. Auth. 843259 Evolution of slopes in over-consolidated clays Cancelli, A Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3. P377-380. Publ Rotterdam: `4. A. Balkema, 1981 The stability of natural slopes in over-consolidated Italian clays is investigated. The shearing resistance parameters have been measured by laboratory tests, both on undisturbed and remoulded samples, either in the fully softened or in the residual state. Both first-time and periodical slides have been examined, the back-computed angles of shearing strength are compared to the measured ones. Auth.
84326O Railroad slope instabilities: monitoring and prevention (In French) Cartier, G; Pincent, B; Pilot, G; Verrier, G Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P381-384. Publ Rotterdam: .4. ,4. Balkema, 1981 843261
Simplified search for noncircular slip surface Celestino, T B; Duncan, J M Proc lOck International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P391-394. Publ Rotterdam: `4. A. Balkema. 1981 Presents a procedure to locate critical noncircular slip surfaces for slope stability analyses, and thus to determine the minimum factor of safety. 843262. Creep in alpine clayey formations (In French) Dysli, M; Recordon, E Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P395-400. Publ Rotterdam: A. ,4. Balkema, 1981
A study of landslides in Swiss alpine clay formations, due to gravitational movement, has shown that the clay soils should be considered as a viscous solid or liquid rather than as a rigidperfectly plastic solid. The constitutive laws so far proposed do not, however, take viscous creep into account. A new cyclic shear apparatus has been used and the first results are presented. 843263 Three methods of slope stability analysis Fedorovsky, V G; Freiberg, E A; Vasiljev, I M Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P401-404. Publ Rotterdam: A. `4. Balkema, 1981 The first method is a variational method based on the assumption that the Coulomb law and Kotter differential equation are valid for stresses along the rupture line. The second method deals with the plane problem for a heterogeneous slope weakened along certain surfaces. The third method is a three dimensional analysis for a heterogeneous slope with weak surfaces. 843264 Application of a stress-strain-time relation Forester, W; Georgi, P Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P405-408. Publ Rotterdam: A. .4. Balkema, 1981 A creep model for saturated fine grained soil is presented, for use in slope stability analysis. 843265 Relationship between limit equilibrium slope stability methods Fredlund, D G; Krahn, J; Pufahl, D E Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P409-416. Publ Rotterdam: A. ,4. Balkema, 1981 Common methods for performing the two-dimensional limit equilibrium method of slices are: the Fellenius method, the simplified Bishop method, the Spencer method, the Janbu methods, the force equilibrium methods, and the Morgenstern-Price method. This paper presents a general limit equilibrium method of slices and shows how these methods are special cases of the general formulation. The paper also shows how the various methods of slices can be extended to non circular slip surfaces. Example problems are used to demonstrate the relationship betwren the factors of safety from these methods. 843266 Quick clay landslide in Rissa, Norway Gregersen, O Proc IOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P421-426. Publ Rotterdam: A. A. Balkema, 1981 843267
How reliable are present methods of slope failure prediction? Grivas, D A Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P427-430. Publ Rotterdam: A. A. Balkema, 1981 The reliability of conventional slope failure prediction was examined by developing a relationship between the factor of safety and the probability of failure. Actual soil data was used and the results are presented in the form of nomographs.
843257 Spatial calculation of slope stability under defmite surcharges Bilz, P; Brodel, C; Reinhardt, K Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P367-371. Publ Rotterdam: `4. `4. Balkema, 1981 A three-dimensional method for calculating the stability of slopes of cuts and trenches that are loaded over a limited area (eg by vehicles, machinery etc) is presented. 643258 Some thoughts on rain-induced slope failures Brand, E W Proc 10th International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 Jane 1981 V3, P373-376. Publ Rotterdam: `4. A. Balkema, 1981 The mechanism is discussed by which failures occur in unsaturated soil slopes in which infiltration and pore suction play major roles. It is suggested that the shear properties of the slope material are most appropriately measured in the laboratory by increasing the pore pressure while the total stresses are maintained constant. It is hypothesized that compressive and dilatant soils will behave quite differently under conditions of water infiltration. For soils which fail slowly or for compressive soils which fail rapidly, the controlling pore pressure (suction) is probably entirely governed by the rate of infiltration. The stability of slopes in dilatant material, however, is probably controlled by pore pressures which are both infiltration-dependent and strain-dependent. Auth. 843259 Evolution of slopes in over-consolidated clays Cancelli, A Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3. P377-380. Publ Rotterdam: `4. A. Balkema, 1981 The stability of natural slopes in over-consolidated Italian clays is investigated. The shearing resistance parameters have been measured by laboratory tests, both on undisturbed and remoulded samples, either in the fully softened or in the residual state. Both first-time and periodical slides have been examined, the back-computed angles of shearing strength are compared to the measured ones. Auth.
84326O Railroad slope instabilities: monitoring and prevention (In French) Cartier, G; Pincent, B; Pilot, G; Verrier, G Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P381-384. Publ Rotterdam: .4. ,4. Balkema, 1981 843261
Simplified search for noncircular slip surface Celestino, T B; Duncan, J M Proc lOck International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P391-394. Publ Rotterdam: `4. A. Balkema. 1981 Presents a procedure to locate critical noncircular slip surfaces for slope stability analyses, and thus to determine the minimum factor of safety. 843262. Creep in alpine clayey formations (In French) Dysli, M; Recordon, E Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P395-400. Publ Rotterdam: A. ,4. Balkema, 1981
A study of landslides in Swiss alpine clay formations, due to gravitational movement, has shown that the clay soils should be considered as a viscous solid or liquid rather than as a rigidperfectly plastic solid. The constitutive laws so far proposed do not, however, take viscous creep into account. A new cyclic shear apparatus has been used and the first results are presented. 843263 Three methods of slope stability analysis Fedorovsky, V G; Freiberg, E A; Vasiljev, I M Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P401-404. Publ Rotterdam: A. `4. Balkema, 1981 The first method is a variational method based on the assumption that the Coulomb law and Kotter differential equation are valid for stresses along the rupture line. The second method deals with the plane problem for a heterogeneous slope weakened along certain surfaces. The third method is a three dimensional analysis for a heterogeneous slope with weak surfaces. 843264 Application of a stress-strain-time relation Forester, W; Georgi, P Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P405-408. Publ Rotterdam: A. .4. Balkema, 1981 A creep model for saturated fine grained soil is presented, for use in slope stability analysis. 843265 Relationship between limit equilibrium slope stability methods Fredlund, D G; Krahn, J; Pufahl, D E Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P409-416. Publ Rotterdam: A. ,4. Balkema, 1981 Common methods for performing the two-dimensional limit equilibrium method of slices are: the Fellenius method, the simplified Bishop method, the Spencer method, the Janbu methods, the force equilibrium methods, and the Morgenstern-Price method. This paper presents a general limit equilibrium method of slices and shows how these methods are special cases of the general formulation. The paper also shows how the various methods of slices can be extended to non circular slip surfaces. Example problems are used to demonstrate the relationship betwren the factors of safety from these methods. 843266 Quick clay landslide in Rissa, Norway Gregersen, O Proc IOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P421-426. Publ Rotterdam: A. A. Balkema, 1981 843267
How reliable are present methods of slope failure prediction? Grivas, D A Proc lOth International Conference on Soil Mechanics and Foundation Engineering, Stockholm, 15-19 June 1981 V3, P427-430. Publ Rotterdam: A. A. Balkema, 1981 The reliability of conventional slope failure prediction was examined by developing a relationship between the factor of safety and the probability of failure. Actual soil data was used and the results are presented in the form of nomographs.