摘要
为了解决煤岩体具有的流变性,而蠕变是流变的主要形式;遇水后煤岩力学性质发生显著变化,造成煤岩体的变形和失稳,导致重大工程事故的发生。采用静载油压三轴试验机,测定不同含水率对煤岩体试件蠕变特性规律;根据含水状态对煤岩体蠕变特性影响,对煤岩蠕变模型以及参数进行了确定。该成果为含水状态下煤岩体的长期稳定性研究提供理论依据。
Coal(rock) has rheological property,creep is the main form;the mechanical properties of rock with water significantly changed,it is an important factor of water affected creep properties of rock.And causing coal(rock) mass deformation and instability,it leads to significant engineering accident.And the static load hydraulic triaxial creep experiment is carried out,The different moisture content of coal(rock) creep property law are studied,According to moisture state of coal(rock) the long-term stability of the influence of coal(rock) creep model and it's parameters were determined,It provides theory basis of studying coal(rock) long-term stability for under different moisture state.
出处
《辽宁工程技术大学学报(自然科学版)》
CAS
北大核心
2011年第2期175-177,共3页
Journal of Liaoning Technical University (Natural Science)
基金
国家自然科学基金资助项目(10972096
50774046)
辽宁省教育厅基金资助项目(2008302)
关键词
煤岩体
不同含水率
油压三轴蠕变试验
蠕变模型
长期稳定性
coal(rock)
different moisture content
hydraulic triaxial creep test
creep model
long-time stability