.... An important component of these' projects are the underground openings which are' often to pass through difficult ground. It is necessary to analyze their stability and understand the state of stresses and deformations around them. Closed form solutions proposed by Ladanyi (1974) is being considered...

... strength concept in the determination of ground pressure on artificial support by the convergence-confinement method was made by Ladanyi (1974). With this approach, two limiting ground reaction curves were considered. One for the short-term response (t=0+) and another for the long-term response (t= (0...

... ABSTRACT: It has been shown recently (Gill and Ladanyi, 1983;, Ladanyi and Gill, 1984) that the conventional convergence-confinement method, based on isochronous characteristic lines, generally underestimates both the ground pressure on the lining and the tunnel wall convergence. By applying...

... can be found in the present rock mechanics literature. The situation was quite different in other fields, such as in ice and permafrost mechanics, where the long-term borehole dilatometer testing has been in current use since the beginning of the 1970-ies (Ladanyi and Johnston, 1973). In the recent...

.... Detailed description of the procedures and results of the in-situ tests were reported elsewhere (Mori, et. al;, 1977). reservoir geomechanics Ladanyi pressuremeter rock mass Upstream Oil & Gas load-settlement curve multi-layed sedimentary rock Deformation Characteristic plate loading...