胶结砂及半成岩粘土的岩土力学特征分析--以湘阴湘江大桥桥位区为例

胶结砂及半成岩粘土目前处于一种由土向岩石转化的状态.它们和正常意义上的土及岩石均有明显的区别.在组成、结构和构造等方面,它们既具有部分土的特征,又具有部分岩石的特征.本文对湘阴湘江大桥桥位区产出的胶结砂及半成岩粘土的土力学和岩石力学特征进行了分析,对其成因和应用进行了探讨.

Character of cemented sand and half-diagenesis clay: A case study for the location of Xiangjiang Bridge

Cemented sand and half-diagenesis clay are in the status from soil into rock. They have clear difference with the soil and rock in normal. In some ways such as compose, texture or structure, they have partly characteristics of soil, also partly of rock. As a case of cemented sand and half-diagenesis clay in Xiangjiang Bridge area, Xiangyin County, Hunan Province, the author analyses its physical and lithomechanical character. And then, its genesis and application have been discussed.