现代矿业
現代礦業
현대광업
Modern Mining
2015年
8期
20-22
,共3页
尾矿库%膨胀土%掺灰比率%膨胀率%渗透系数
尾礦庫%膨脹土%摻灰比率%膨脹率%滲透繫數
미광고%팽창토%참회비솔%팽창솔%삼투계수
Tailings dam%Swelling soil%Lime adding ratio%Inflation ratio%Permeability coefficient
张庄铁矿尾矿库筑坝土料存在膨胀性，为使其满足筑坝要求，采用掺石灰的方法对研究区内的膨胀土进行室内改良试验，确定了掺灰改良后筑坝土料物理力学参数，为该区建库筑坝提供了施工依据。综合对比试验结果各项参数，确定改良膨胀土最优掺灰比率为2％生石灰＋3％消石灰，使该区不均匀土层②层黏土物理力学性质得到极大改善，达到筑坝的要求。
張莊鐵礦尾礦庫築壩土料存在膨脹性，為使其滿足築壩要求，採用摻石灰的方法對研究區內的膨脹土進行室內改良試驗，確定瞭摻灰改良後築壩土料物理力學參數，為該區建庫築壩提供瞭施工依據。綜閤對比試驗結果各項參數，確定改良膨脹土最優摻灰比率為2％生石灰＋3％消石灰，使該區不均勻土層②層黏土物理力學性質得到極大改善，達到築壩的要求。
장장철광미광고축패토료존재팽창성，위사기만족축패요구，채용참석회적방법대연구구내적팽창토진행실내개량시험，학정료참회개량후축패토료물리역학삼수，위해구건고축패제공료시공의거。종합대비시험결과각항삼수，학정개량팽창토최우참회비솔위2％생석회＋3％소석회，사해구불균균토층②층점토물리역학성질득도겁대개선，체도축패적요구。
Zhangzhuang iron tailings has swelling performance when used in dam building,in order to meet the requirements of dam,swelling soil property improving around the research area by adding lime was conducted within indoor experiments.Physical and mechanical parameters of improved damming soil was determined,and provide construction basis for dam building around the area.Compare each pa-rameter,optimal ash dosage for improved swelling soil is 2% quick lime +3% slaked lime,making the physical and mechanical properties of uneven soil layers ② layer significantly improved,meet the re-quirement of dam building.
