| contributor author | Daud W. Rassam | |
| contributor author | David J. Williams | |
| date accessioned | 2017-05-08T21:26:45Z | |
| date available | 2017-05-08T21:26:45Z | |
| date copyright | July 1999 | |
| date issued | 1999 | |
| identifier other | %28asce%291090-0241%281999%29125%3A7%28600%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/51750 | |
| description abstract | The development of matric suctions in soils contributes to their shear strength, resulting in an enhanced factor of safety against bearing-capacity failure. In this paper, matric suction profiles of desiccated mine tailings are predicted from a steady-state solution for evaporative conditions, and from an isothermal mathematical model that simulates liquid and vapor water flow through soils. The shear-strength envelope with respect to matric suction is established by testing reconstituted tailings samples in a modified triaxial cell, in which matric suction can be controlled. The contribution of matric suction to the shear strength is interpreted as an additional apparent cohesion for use in bearing-capacity calculations. Because of the nonlinearity of the shear-strength profile, a numerical method of analysis is adopted to predict the ultimate bearing capacity of the desiccated tailings. A subsequent decrease in bearing capacity following 2D water infiltration into a partially capped tailings deposit and accompanying suction loss is investigated. | |
| publisher | American Society of Civil Engineers | |
| title | Bearing Capacity of Desiccated Tailings | |
| type | Journal Paper | |
| journal volume | 125 | |
| journal issue | 7 | |
| journal title | Journal of Geotechnical and Geoenvironmental Engineering | |
| identifier doi | 10.1061/(ASCE)1090-0241(1999)125:7(600) | |
| tree | Journal of Geotechnical and Geoenvironmental Engineering:;1999:;Volume ( 125 ):;issue: 007 | |
| contenttype | Fulltext | |
