... laboratory creep tests have been conducted to study the creep behaviour of different types of intact or fractured rock samples. Based on experimental data several creep models have been proposed to reproduce the creep behaviour observed empirically; however, these approaches often do not reproduce all phases...

... ABSTRACT: The creep behaviour of a soft rock can be examined by experimental studies involving triaxial creep tests and tunnel physical model tests. The physical model tests show a close resemblance to the developed numerical analysis using fitted creep parameters determined by triaxial creep...

... the assembled machine and support equipment prior to testing. adhesion particle low shear stress ratio Creep behaviour University Upstream Oil & Gas mechanism shale shale joint time-dependent behaviour strength time-dependent displacement plane creep displacement shear stress ratIO...

... the cross section. The maximum stress is at the inner bore in the elastic case B = 1, constant for B = 2, which is a typical value for frozen sands. relation cylinder Creep behaviour expression thick-walled cylinder temperature gradient freeze shaft design temperature distribution steady...

... ABSTRACT Experimental and field measurements have shown that the time-dependent behaviour of a jointed rock mass is a function of the rheological behaviour of both the intact rock and its discontinuities. Although numerous numerical techniques exist for modelling the creep behaviour...