| 矿渣型泥石流源区土体的入渗特性 |
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| 引用本文： | 朱兴华,庄建琦,李亚哲,张利勇. 矿渣型泥石流源区土体的入渗特性[J]. 水土保持通报, 2016, 36(5): 96-99. DOI: 10.13961/j.cnki.stbctb.2016.05.024 |
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| 作者姓名： | 朱兴华 庄建琦 李亚哲 张利勇 |
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| 作者单位： | 西部矿产资源与地质环境教育部重点实验室，陕西西安710054; 长安大学地质工程与测绘学院，陕西西安 710054 |
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| 基金项目： | 国家重点基础研究发展规划（973计划）项目“黄土重大灾害及灾害链的发生、演化机制及防控理论”（2014CB744702）；国家自然科学基金项目（41402255）；国家科技支撑计划（2012BAC06B02）；中国博士后基金项目（2015M572512） |
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| 摘 要： | [目的]分析矿渣型泥石流源区不同类型土体的入渗特性及差异,为矿渣型泥石流源区的流域水文过程分析提供可靠的基础数据。[方法]以小秦岭金矿区大西岔泥石流沟为研究流域,通过野外双环原位试验,分别测定大西岔沟源区的新矿渣,堆积1a的矿渣,堆积4a的矿渣,耕地和草地这5种不同类型土体的入渗特性,并以霍顿模型对试验数据进行了拟合率定。[结果]通过试验数据分析发现,新矿渣的初始入渗率最大,而堆积4a的矿渣入渗率最小;稳定入渗率方面,耕地的稳定入渗率最大,达到了0.062mm/s。[结论]土体的初始入渗速率由土体密实度决定;而土体的稳定入渗率则由土体的级配特性所决定。
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| 关 键 词： | 矿渣 泥石流 双环试验 初始入渗率 稳定入渗率 |
| 收稿时间： | 2016-01-07 |
| 修稿时间： | 2016-02-20 |
Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region |
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| ZHU Xinghu,ZHUANG Jianqi,LI Yazhe and ZHANG Liyong. Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region[J]. Bulletin of Soil and Water Conservation, 2016, 36(5): 96-99. DOI: 10.13961/j.cnki.stbctb.2016.05.024 |
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| Authors: | ZHU Xinghu ZHUANG Jianqi LI Yazhe ZHANG Liyong |
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| Affiliation: | Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education, Xi''an, Shaanxi 710054, China;School of geological engineering and surveying, Chang''an University, Xi''an, Shaanxi 710054, China,Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education, Xi''an, Shaanxi 710054, China;School of geological engineering and surveying, Chang''an University, Xi''an, Shaanxi 710054, China,Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education, Xi''an, Shaanxi 710054, China;School of geological engineering and surveying, Chang''an University, Xi''an, Shaanxi 710054, China and Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education, Xi''an, Shaanxi 710054, China;School of geological engineering and surveying, Chang''an University, Xi''an, Shaanxi 710054, China |
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| Abstract: | [Objective] We aim to analyze the infiltration characteristics of mine waste in order to provide the scientific research data for the hydrological processes analysis in mine waste debris flow basin.[Methods] Daxicha gully in Xiaoqinling gold mine was chosen as the research area. The infiltration characteristics of 5 different types of soil including fresh mine waste, the 1-year mine waste, the 4-year mine waste, the grass and farmland were investigated by double-ring infiltration experiments. The experimental data were then used to fit into Horton experience formula.[Results] According to the analysis results, fresh mine waste had the largest initial infiltration rate and the 4-year mine waste had the least initial infiltration rate. The stable infiltration rate of farmland was highest, which reached to 0.062 mm/s.[Conclusion] Initial infiltration rate of soil is affected by the soil compaction degree, and the stable infiltration rate is determined by the grading characteristic of mine waste debris flow prevention. |
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| Keywords: | mine waste debris flow double-ring infiltration experiment initial infiltration rate stable infiltration rate |
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