初始含水率对铝土矿矿泥沉降分层效果的影响  

Effect of Initial Moisture Content on the Sedimentation and Stratification Effect of Bauxite Slimes

作　　者：张喜伟 孙刚臣[1,2] 任国帅 胡宁 ZHANG Xiwei;SUN Gangchen;REN Guoshuai;HU Ning(Civil and Architectural Engineering College,Guilin University of Technology,Guilin 541004;Guangxi Key Laboratory of New Energy and Building Energy Saving,Guilin 541004)

机构地区：[1]桂林理工大学土木与建筑工程学院,广西桂林541004 [2]广西建筑新能源与节能重点实验室,广西桂林541004

出　　处：《洛阳理工学院学报（自然科学版）》2023年第3期1-6,92,共7页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：广西自然科学基金项目(2020GXNSFAA297078);桂林理工大学科研启动基金项目(GUTQDJJ2003031)。

摘　　要：以广西铝土矿矿泥为例,通过自由沉降试验,研究180%、210%、240%、270%、300%、330%六种初始含水率对矿泥浆沉降分层机制的影响,并对沉降稳定后矿泥粒径分布、密度、含水率和孔隙比等指标进行测试。矿泥出现沉降分层现象的最小初始含水率W0=240%,沉降稳定后各层的微细颗粒含量相近,密度与取样深度呈正相关,含水率、孔隙比与取样深度呈负相关。Take Guangxi bauxite slimes as an example,through the free sedimentation test,the effects of six initial moisture content rates of 180%,210%,240%,270%,300%and 330%on the sedimentation stratification mechanism of mineral mud were studied.The particle size distribution,density,moisture content and porosity ratio of the mineral mud after the settlement stabilization is tested.The initial moisture content of law of ground settlement is W 0=240%.After the settlement is stable,the content of fine particles in each layer is relatively uniform,which has obvious stratification;Density is positively correlated with sampling depth,while moisture content and porosity ratio are negatively correlated with sampling depth.

关 键 词：铝土矿 沉降 矿泥 分层 

分 类 号：O614[理学—无机化学] TU42[理学—化学]