Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental Study of Mechanical Behaviour of Rock Joints Under Cyclic Loading
Summary Evaluation of the effects of small repetitive earthquakes on the strength parameters of rock joints in active seismic zones is of interest of the designers of underground constructions. In order to evaluate these effects, it is necessary to study the behaviour of rock joints under dynamic and cyclic loadings. This paper presents the results of a systematic study on the behaviour of artificial rock joints subjected to cyclic shearing. More than 30 identical replicas have been tested using triaxial compression devices under different conditions of monotonic and cyclic loading. At the first stage a few samples have been tested in monotonic loading modes under various confining pressures and rate of displacement. In the second series of tests, small cyclic loads were applied on the samples for increasing number of cycles, frequency levels and stress amplitudes. These were then followed by monotonic loading again. The variations of maximum and residual shear strengths for each test have been studied. The results show increase of shear strength as a result of the increase in confining pressure and they display decrease of shear strength due to the increase of rate of loading, number of cycles, frequency levels and stress amplitudes.
Experimental Study of Mechanical Behaviour of Rock Joints Under Cyclic Loading
Summary Evaluation of the effects of small repetitive earthquakes on the strength parameters of rock joints in active seismic zones is of interest of the designers of underground constructions. In order to evaluate these effects, it is necessary to study the behaviour of rock joints under dynamic and cyclic loadings. This paper presents the results of a systematic study on the behaviour of artificial rock joints subjected to cyclic shearing. More than 30 identical replicas have been tested using triaxial compression devices under different conditions of monotonic and cyclic loading. At the first stage a few samples have been tested in monotonic loading modes under various confining pressures and rate of displacement. In the second series of tests, small cyclic loads were applied on the samples for increasing number of cycles, frequency levels and stress amplitudes. These were then followed by monotonic loading again. The variations of maximum and residual shear strengths for each test have been studied. The results show increase of shear strength as a result of the increase in confining pressure and they display decrease of shear strength due to the increase of rate of loading, number of cycles, frequency levels and stress amplitudes.
Experimental Study of Mechanical Behaviour of Rock Joints Under Cyclic Loading
Jafari, M. K. (Autor:in) / Pellet, F. (Autor:in) / Boulon, M. (Autor:in) / Hosseini, K. Amini (Autor:in)
Rock Mechanics and Rock Engineering ; 37 ; 3-23
17.06.2003
21 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Experimental Study of Mechanical Behaviour of Rock Joints Under Cyclic Loading
| Online Contents | 2003
Experimental Study of Mechanical Behaviour of Rock Joints Under Cyclic Loading
| British Library Online Contents | 2004
Experimental Study of Mechanical Behaviour of Rock Joints Under Cyclic Loading
| Online Contents | 2003
Study of rock joints under cyclic loading conditions
| Springer Verlag | 1993
Study of rock joints under cyclic loading conditions
| Online Contents | 1993