不同应力路径下块石胶结充填体破坏试验研究  

Destructive Tests on the Cemented Rock Filling Body Under Different Stress Paths

作　　者：冯萧[1,2] 曹世荣 卓毓龙 李永欣[1] 韩建文[1] 王晓军[1,2] 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州市341000 [2]江西理工大学江西省矿业工程重点实验室,江西赣州市341000

出　　处：《矿业研究与开发》2016年第7期43-46,共4页Mining Research and Development

基　　金：国家自然科学基金项目(51304083);江西省科技支撑计划项目(20141BBE50005)

摘　　要：充填体结构对其承载能力起到重要作用。通过对灰石配比为1∶0,1∶2,1∶3,1∶4,1∶5与1∶6的6组块石胶结充填体试件进行单调加载与分级加载下的压缩试验分析,得出块石胶结充填体抗压强度随块石占比变化的一般规律,发现不同加载方式下灰石比1∶2的充填体试件抗压强度和平均单位能耗均大于其余各组试件,而灰石比1∶5试件抗压强度与破坏能耗均与配比为1∶2的试件接近。The structure of filling body had an important in- fluence on the bearing capacity. The compression tests on six groups of cemented rock filling body with cement-rock ratio of 1 ： 0, 1 ： 2, 1 ： 3, 1 ： 4, 1 ： 5 and 1 ： 6 were respective- ly conducted and analyzed under monotonic loading and step loading. It obtained a general rule that the compressive strength of cemented filling body changed with different con- tents of rock. The compressive strength and average destruc- tive energy dissipation of filling body with cement-rock ratio of 1 ： 2 was larger than the othersr under different stress paths, which was close to the test specimen with cement- rock ratio of 1 ： 5.

关 键 词：块石胶结充填 灰石比 充填体破坏能耗 

分 类 号：TD853.343[矿业工程—金属矿开采]