Effect of the Pore Water Pressure on the Rock Mechanics Parameters

详细信息   

• 责任者：Liu Qi (Department of Geotechnical Engineering ; Tongji University ; Shanghai 200092 ; China) ; Lu Yaoru
• 刊名：Acta Geoscientica Sinica
• 出版年：2008
• 卷期：29(5)
• 关键词：孔隙水压力 ; pore pressure ; 岩体力学 ; rock mechanics
• 页码：p.660-664
• 图表：6 illus., 19 refs.
• 分类号：1702
• issnNo：ISSN1006-3021
• isbnNo：CN11-3474/P

摘要

In multi-phase porous rock media, the change of pore water pressure will induce the deformation of rocks and the variation of rock mechanics parameters, which, in turn, will change the seepage flow field. Using the rock mechanics parameters, this paper deduces the relationships of deformation, porosity, coefficients of compressibility and bulk elastic modulus during the variation of the pore water pressure. Theoretical calculation and analysis show that it is effective to use couple analysis by means of renovated rock mechanics parameters when the seepage flow field and deformation field are given.