Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region

ZHU Xinghua; ZHUANG Jianqi; LI Yazhe; ZHANG Liyong

doi:10.13961/j.cnki.stbctb.2016.05.024

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Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region

- Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region
- Bulletin of Soiland Water Conservation Vol. 36, Issue 5, Pages: 96-99(2016)
- 作者机构：
  
  1. 西部矿产资源与地质环境教育部重点实验室,陕西,西安,710054
  2. 长安大学地质工程与测绘学院,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.05.024
  CLC：
- Published：2016
- 稿件说明：
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ZHU Xinghua, ZHUANG Jianqi, LI Yazhe, et al. Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region[J]. Bulletin of Soiland Water Conservation, 2016, 36(5): 96-99.
DOI：

ZHU Xinghua, ZHUANG Jianqi, LI Yazhe, et al. Infiltration Characteristics of Soil in Mine Waste Debris Flow Source Region[J]. Bulletin of Soiland Water Conservation, 2016, 36(5): 96-99. DOI： 10.13961/j.cnki.stbctb.2016.05.024.

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1 a的矿渣，堆积4 a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4 a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0.062 mm/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。

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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references

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