EXPERIMENTAL INVESTIGATION OF TRANSVERSELY ISOTROPIC ROCK PROPERTIES BY MICRO INDENTATION

摘要：

This study deals with the determination of mechanical properties of elastic transversely isotropic rocks by an indentation test. We first recall, for isotropic materials, classical results (youngs modulus, C and ψ), based on Boussinesq theory applied to ideally circular rigid indenter. Then, we present our method for determining the elastic moduli of transversely isotropic rocks (e.g. schist). Based on solutions provided by Hanson (1992) and Vlassak and Nix (1993), the proposed approach consists in a combination of semi analytical solutions and a hypothesis on Poisson ratio. Experimental results obtained for a schist from the micro indentation tests are in very good agreement with the compression tests already performed in this material.

作者: M.Sibai N.Ibrahim D.Kondo J.F.Shao J.P.Henry

作者单位: LML, BD Paul Langevin, 59655 Villeneuve dAscq cedex, France GIS, NIMES

会议类型: 国际会议

会议名称: 第二届国际应力-水流-热-化学耦合学术大会(2nd International Conference on Coupled Thermo-Hydro-Mechanical Processes in Geosystems and Engineering：Geoproc2006)

会议地点: 南京

会议语种:英文

页码: 115-120

在线出版日期: 2006-05-22（万方平台首次上网日期，不代表论文的发表时间）