工程地质学报2012，Vol.20Issue(4)：599-606,8.
风化、蚀变对花岗斑岩物理力学特性影响分析
INFLUENCE ANALYSIS OF WEATHERING AND ALTERING FOR PHYSICAL AND MECHANICAL CHARACTERISTICS OF GRANITE-PORPHYRY
魏伟 1沈军辉 1苗朝 1刘海 1李刚 2聂德新1
作者信息
- 1. 成都理工大学 地质灾害防治与地质环境保护国家重点实验室 成都610059
- 2. 安徽省公益性地质调查管理中心 合肥230001
- 折叠
摘要
Abstract
Porosity is one of the important characteristics of rock mass. It can reflect the effect of weathering and altering for the physical and mechanical characteristics of rock mass. Therefore, the functional relationship of porosity and the other physical and mechanical parameters is established through indoor experiments. The effect of weathering and altering for the physical and mechanical characteristics of granite-porphyry also is analyzed. The results show that the dry density and compressive strength of the weathered and altered granite-porphyry decrease as porosity increases, which presents the power function relationship. Their correlation coefficient are greater than 0. 83. The water absorption increases with increasing in porosity, which presents the binomial functional relationship. Their correlation coefficient are greater than 0. 90. All the weathering and altering can weaken the physical and mechanical characteristics of granite-porphyry. As increasing in weathering and altering, the physical and mechanical characteristics of granite-porphyry can gradually reduce. The influence of altering and weathering for the steep-inclined structural face is stronger than for the gently dipping structural face.关键词
风化/蚀变/花岗斑岩/物理力学特性Key words
Weathering, Altered, Granite-porphyry, Physical and mechanical characteristics分类
建筑与水利引用本文复制引用
魏伟,沈军辉,苗朝,刘海,李刚,聂德新..风化、蚀变对花岗斑岩物理力学特性影响分析[J].工程地质学报,2012,20(4):599-606,8.
