金属矿山
金屬礦山
금속광산
METAL MINE
2015年
2期
32-35
,共4页
充填体%侧限%压缩特性%变形机理
充填體%側限%壓縮特性%變形機理
충전체%측한%압축특성%변형궤리
Backfill%Lateral restraint%Compression characteristic%Deformation mechanism
为了研究充填体在侧限高应力下的变形规律,根据现场调研结果试验室内选取灰砂比为1∶10,浓度为70%的充填体试块进行9级加载蠕变试验,得到每级加载应力下充填体的轴向变形规律。通过对充填体的压缩特性分析,得到了不同加载应力条件下充填体试块的侧限压缩系数和压缩模量；通过压缩变形应变-时间图,对侧限高应力条件下充填体试块的压缩变形机理进行分析,分析结果为新城金矿矿山充填设计及安全生产提供科学依据。
為瞭研究充填體在側限高應力下的變形規律,根據現場調研結果試驗室內選取灰砂比為1∶10,濃度為70%的充填體試塊進行9級加載蠕變試驗,得到每級加載應力下充填體的軸嚮變形規律。通過對充填體的壓縮特性分析,得到瞭不同加載應力條件下充填體試塊的側限壓縮繫數和壓縮模量；通過壓縮變形應變-時間圖,對側限高應力條件下充填體試塊的壓縮變形機理進行分析,分析結果為新城金礦礦山充填設計及安全生產提供科學依據。
위료연구충전체재측한고응력하적변형규률,근거현장조연결과시험실내선취회사비위1∶10,농도위70%적충전체시괴진행9급가재연변시험,득도매급가재응력하충전체적축향변형규률。통과대충전체적압축특성분석,득도료불동가재응력조건하충전체시괴적측한압축계수화압축모량；통과압축변형응변-시간도,대측한고응력조건하충전체시괴적압축변형궤리진행분석,분석결과위신성금광광산충전설계급안전생산제공과학의거。
In order to study the deformation law of backfill under high stress and lateral restraint,according to the site survey results,nine-load creep experiments on the backfill with the gray-sand ratio of 1 ∶ 10 and a concentration of 70% are carried out. Axial deformation law of backfill is obtained under each level of load stress. Compression characteristic analysis of backfill is made to get the variation of compression factor and compression modulus under different loading stresses. Through the compression strain-time diagram,the compression deformation mechanism of backfill under high stress and lateral restraint is drawn. The results provide a scientific basis for the filling design and production safety in Xincheng Gold Mine.
