| 强夯法加固湿陷性黄土坝体的应用研究 |
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| 引用本文： | 王学武,党发宁,许尚杰.强夯法加固湿陷性黄土坝体的应用研究[J].西安理工大学学报,2010,26(1):66-70. |
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| 作者姓名： | 王学武 党发宁 许尚杰 |
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| 作者单位： | 1. 西安理工大学岩土工程研究所,陕西,西安,710048;山西省水利水电工程建设监理公司,山西,太原,030002
2. 西安理工大学岩土工程研究所,陕西,西安,710048 |
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| 基金项目： | 国家自然科学基金重点资助项目，国家自然科学基金资助项目，水利部公益性行业科研专项基金资助项目 |
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| 摘 要： | 以某土坝坝体的加固为例,通过强夯前后的取样试验、现场标准贯入试验和静力触探试验,研究了强夯法加固湿陷性黄土坝体的可行性.结果表明,强夯后坝体土的湿陷系数平均为0.008,降低了65.2%,湿陷性完全消除;干密度平均为1.68 g/cm3,提高了23.5%;水平方向、垂直方向的平均渗透系数分别为0.65×10-5cm/s和0.28×10-5 cm/s,分别降低了85.5%和93.3%,也未发现土体剪切破坏现象;压缩系数平均为0.058 MPa-1,降低了80.2%,达到了低压缩性土标准;标准贯入试验和静力触探试验平均值分别提高了1倍和1.37倍,达到了预期的加固目的.
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| 关 键 词： | 强夯法 湿陷性 干密度 渗透系数 压缩系数 标准贯入试验 静力触探试验 |
Research on an Application of Dynamic Compaction Consolidation of Collapsible Loess Dam Body |
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| WANG Xue-wu,DANG Fa-ning,XU Shang-jie.Research on an Application of Dynamic Compaction Consolidation of Collapsible Loess Dam Body[J].Journal of Xi'an University of Technology,2010,26(1):66-70. |
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| Authors: | WANG Xue-wu DANG Fa-ning XU Shang-jie |
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| Institution: | WANG Xue-wu1,2,DANG Fa-ning1,XU Shang-jie1 (1.Institute of Geotechnical Engineering,Xi\'an University of Technology,Xi\'an 710048,China,2.Shanxi Water Resources , Hydropower Construction Supervision Company,Taiyuan 030002,China) |
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| Abstract: | With the consolidation of an earth dam body as an example,this paper studies the feasibility of consolidation of collapsible loess dam body by Dynamic compaction method(DCM) through sampling tests,field standard penetration test and static touch test before and after dynamic compaction.The results indicate that: the average coefficient of collapsibility after dynamic compaction is 0.008 with a reduction of 65.2% and the complete disappearance of collapsibility;the average dry density is 1.68 g/cm3 with an i... |
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| Keywords: | DCM collapsibility dry density coefficient of permeability coefficient of compression standard penetration test static touch test |
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