7A W. Skempton. Effective stress in soils, concrete and rocks [A]// Pore Pressure and Suctions in soils[ C]. Butterworth, London, 1960: 4-16.
8Purnendu N. Singh and Wesley W. Wallender, M. ASCE. Effective stress from force balance on sub- merged granular particles [ J]. International Journal of Geomechanics. 2007, 3:186-193.
9Nur Amos, Byerlee J D. An exact effective stress law for elastic deformation of rock with fluids [ J 1- Journal of Geophysics Research, 1971,76 (26) : 6414-6418.
10Geertsma J. , Smit D.C. Some aspects of elastic wave propagation in fluid-saturated porous solids [ J 1. Geo- physics, 1961, 26:169-181.
