| 侧限高应力条件下充填体压缩变形规律分析 |
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| 引用本文： | 赵向民,孙天顺,吕文生.侧限高应力条件下充填体压缩变形规律分析[J].金属矿山,2015,44(2):32-35. |
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| 作者姓名： | 赵向民 孙天顺 吕文生 |
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| 作者单位： | 北京科技大学土木与环境工程学院，北京 100083 |
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| 基金项目： | 基金项目 “十二五”国家科技支撑计划项目（编号：2012BAB08B01）。 |
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| 摘 要： | 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。
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| 关 键 词： | 充填体 侧限 压缩特性 变形机理 |
Compression Deformation Analysis of Backfill Under High Stress and Lateral Restraint |
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| Zhao Xiangmin,Sun Tianshun,Lu Wensheng.Compression Deformation Analysis of Backfill Under High Stress and Lateral Restraint[J].Metal Mine,2015,44(2):32-35. |
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| Authors: | Zhao Xiangmin Sun Tianshun Lu Wensheng |
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| Affiliation: | School of Civil and Environment Engineering School，University of Science and Technology Beijing，Beijing 100083，China; |
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| Abstract: | 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. |
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| Keywords: | Backfill Lateral restraint Compression characteristic Deformation mechanism |
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