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当前位置: 首页 > 文章 > 矿渣型泥石流源区土体的入渗特性 水土保持通报 2016,36 (5) 96-99
Position: Home > Articles > Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region Bulletin of Soil and Water Conservation 2016,36 (5) 96-99

矿渣型泥石流源区土体的入渗特性

作  者：
朱兴华;庄建琦;李亚哲;张利勇
单  位：
西部矿产资源与地质环境教育部重点实验室
关键词：
矿渣;泥石流;双环试验;初始入渗率;稳定入渗率
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。
译  名：
Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region
作  者：
ZHU Xinghua;ZHUANG Jianqi;LI Yazhe;ZHANG Liyong;Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education;School of geological engineering and surveying,Chang'an University;
关键词：
mine waste;;debris flow;;double-ring infiltration experiment;;initial infiltration rate;;stable infiltra tion rate
摘  要：
[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 5different 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 0.062mm/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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