Study on Correlation between Mineralogical Composition and Elastic Modulus of Clay Rock for Geological Repository at Home and Abroad

摘要

According to the space-volume average modal, the elastic modulus is estimated by the mineralogical composition and its content. This paper discusses correlation between mineralogical composition and elastic modulus of clay rock for geological repository at home and abroad. Some general conclusions are drawn as follows: high quartz and calcite mineralogical composition contents have higher theoretical values of elastic modulus; the clay rock from Tamusu area has good mechanical properties, so it is suitable for the host rock type for geological repository; it is suggested to introduce the empirical correction coefficient in order to improve the calculation of elastic modulus by the models.