岩土工程学报2013，Vol.35Issue(3)：599-604,6.
砂板岩岩体力学特性的水岩耦合试验研究
Water-rock coupling tests on mechanical properties of sandy slate rock mass
李佳伟 1徐进 1王璐 1杨昊天 1杨支跃1
作者信息
摘要
Abstract
Using rock mechanics test system with MTS815 Flex Test GT, the high pore water pressure effects of mechanical properties of the sandy slate rock mass are studied through several stages of tests, such as simulation of the stress state of rock mass, mechanical properties tests of rock mass without water pressure and coupling tests of water-rock. The results and analysis show that the strength and deformation properties of the sandy slate rock mass decrease with the increase of the water pressure. The water pressure has the greatest impact on cohesion c, the least impact on angle of internal friction φ, and a moderate impact on deformation modulus. The cohesion c reduces sharply with the rising water pressure. When the water pressure gets to a high level, rock mass completely loses cohesion. Both the deformation moduli E50 and E0 decrease with the rising water pressure, and their variation gradients have little diffience. These conclusions reveal the effect of pore water pressure on the mechanical properties of the sandy slate rock mass, and a prediction model for the main mechanical parameters is established. This study is valuable to solve practical engineering problems.关键词
砂板岩/岩体力学特性/高空隙水压力/水岩耦合试验Key words
sandy slate/ mechanical property of rock mass/ high pore water pressure/ water-rock coupling test分类
建筑与水利引用本文复制引用
李佳伟,徐进,王璐,杨昊天,杨支跃..砂板岩岩体力学特性的水岩耦合试验研究[J].岩土工程学报,2013,35(3):599-604,6.
