硅酸盐通报2018，Vol.37Issue(6)：2008-2013,6.
不同含水率纯尾砂胶结充填体强度及损伤模型分析
Strength and Damage Model Analysis of Pure Tailings Cemented Filling Body with Different Water Content
摘要
Abstract
A full tailing cemented filling body made of metal mine tailing and cement is taken as the research object, the strength test of the specimens with different moisture contents filling body in the process of deformation and failure was carried out by uniaxial compression and using RMT-150C hydraulic servo control system and sensor acquisition system.The test results show that: the samples with completely dry state have the highest strength, and the different moisture contents have obvious influence on the strength of the filling body.The higher the water content, the lower the uniaxial compressive strength.In the elastic phase, water has a great influence on the elastic modulus of the filler sample, the brittleness in the dry state is larger, the slope of the curve is larger, and water softens obviously. Intergranular cohesion and friction are reduced by the action of water.The quantitative relationship between uniaxial compressive strength and moisture content shows a polynomial decrease.Different water content filling bodies have different damage characteristics, the damage development of the dry filling body is inhibited by water, but the damage development of the aqueous filling body is promoted by the increase of the water content.关键词
不同含水率/胶结充填体/单轴抗压强度/损伤/本构模型Key words
different moisture content/cemented filling body/uniaxial compressive strength/damage/constitutive model分类
交通工程引用本文复制引用
聂亚林,王晓军,黄广黎,李士超,冯萧,曹世荣..不同含水率纯尾砂胶结充填体强度及损伤模型分析[J].硅酸盐通报,2018,37(6):2008-2013,6.基金项目
国家自然科学基金(51304083,51564012) （51304083,51564012）
江西理工大学优秀博士学位论文培育项目(YB2017001) （YB2017001）
