Deformability of Transversely Isotropic Rocks

• Main Authors: Jen-Yuan Liu, 劉鎮原
• Other Authors: Jyh-Jong Liao
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/47273245135477357125

碩士 === 國立交通大學 === 土木工程研究所 === 82 === The stress distribution in anisotropic rock masses is strongly dependent on the degree of rock anisotropy which can be represented by the elastic contants of the rock．In order to evaluate the stress components in anisotropic rocks，the elastic contants have to be obtained． The five elastic constants of two types of transversely isotropic rocks， argillite of Ken-Guo formation and slate of Lu-Shan formation in central Taiwan and northern Taiwan， respectively，are obtained by conventional uniaxial compressive testing on cylindrical samples at laboratory in this experimental reseach． The results show that the five static elastic constants of argillite are E=51000 MPa，E''=32000 MPa，v=0.19，v''=0.18， G''=13000 MPa， and those of slate are E=54000 MPa，E''=22000 MPa ，v=0.19， v''=0.12$，G''=15000 MPa．It is found that the degree of anisotropy of slate samples is larger than that of argillite samples．This phenomenon shows the difference of metamorphism degree of the two diffenerce types of rocks．