不同干密度尾矿料压缩特性探究  

Study on Compressive Characteristics of Different Dry Density Tailings

作　　者：田园[1] 车高凤 张文强 TIAN Yuan;CHE Gaofeng;ZHANG Wenqiang(Yangling Vocational and Technical College,Yangling 712100,China;Key Laboratory of Loess Earthquake Engineering,Lanzhou Institute of Seismology,CEA,Lanzhou 730000,China;Geotechnical Disaster Prevention Engineering Technology Research Center of Gansu Province,Lanzhou 730000,China;Jining Planning and Design Institute,Jining 272000,China)

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]中国地震局兰州地震研究所黄土地震工程重点实验室,甘肃兰州730000 [3]甘肃省岩土防灾工程技术研究中心,甘肃兰州730000 [4]济宁市规划设计研究院,山东济宁272000

出　　处：《粉煤灰综合利用》2020年第2期72-76,共5页Fly Ash Comprehensive Utilization

基　　金：中国地震局黄土地震工程重点实验室开放基金项目(KLLEE-17-001);杨凌职业技术学院科学研究基金项目(A2017039)。

摘　　要：为研究不同干密度尾矿料的压缩特性,采用筛分法将尾矿料分别配制成不同干密度的尾矿砂及尾矿土,进行渗透、压缩试验。试验表明:尾矿砂的沉降主要发生在施加荷载的早期阶段,且沉降量较大。压缩模量随着干密度的增大而增大,压缩系数随着干密度的增大而减小,在相同压力增量下,尾矿土的压缩性更强。In order to study the compression characteristics of different dry density tailings,the tailings were divided into tailings sand and tailings soil with different dry densities by sieving method,and the penetration and compression tests were carried out.Tests showed that the settlement of tailings occurs mainly in the early stage of applied load,and it showed a large settlement.The compressive modulus increases with the increase of dry density,and the compressive coefficient decreases with the increase of dry density.Under the same pressure increment,the compressibility of tailing soil is stronger.

关 键 词：尾矿料 压缩试验 干密度 试验研究 

分 类 号：TU521.25[建筑科学—建筑技术科学]