Variability of Saturated Permeability Coefficient of Loess Slopes in South Jingyang Tableland

doi:10.13961/j.cnki.stbctb.2017.03.043

您当前的位置：

首页 >

文章列表页 >

Variability of Saturated Permeability Coefficient of Loess Slopes in South Jingyang Tableland

- Variability of Saturated Permeability Coefficient of Loess Slopes in South Jingyang Tableland
- Bulletin of Soiland Water Conservation Vol. 37, Issue 3, Pages: 254-257(2017)
- 作者机构：
  
  1. 长安大学环境科学与工程学院,陕西,西安,710054
  2. 旱区地下水与生态效应教育部重点实验室,陕西,西安,710054
  3. 陕西省土地工程建设集团,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2017.03.043
  CLC：
- Published：2017
- 稿件说明：
移动端阅览
Variability of Saturated Permeability Coefficient of Loess Slopes in South Jingyang Tableland[J]. Bulletin of Soiland Water Conservation, 2017, 37(3): 254-257.
DOI：

Variability of Saturated Permeability Coefficient of Loess Slopes in South Jingyang Tableland[J]. Bulletin of Soiland Water Conservation, 2017, 37(3): 254-257. DOI： 10.13961/j.cnki.stbctb.2017.03.043.

摘要

[目的

]

研究泾阳县南塬耕植土下部黄土层饱和渗透系数空间变异性特征，为研究水的渗透对黄土滑坡的影响提供依据。[方法

]

通过室内变水头渗透试验测定泾阳县南塬54个测试点的垂直饱和渗透系数和水平饱和渗透系数，并用传统统计学和地统计学方法进行分析。[结果

]

探槽取样区的饱和渗透系数在10

-2

~10 m/d范围之内，平硐取样区的渗透系数明显小于探槽渗透系数值，在10

-4

~1 m/d范围之间。探槽垂直方向空间相关程度中等，变程为5.05，水平方向空间相关程度强，变程为3.50；平硐垂直方向空间相关度中等，变程为17.46，水平方向空间相关程度弱，变程为16.00。[结论

]

黄土边坡饱和渗透系数的空间变异性较强。

Abstract

[Objective] The spatial variability of saturated permeability coefficient of lower layer of cultivated soil was researched to understand the influence of water infiltration on loess landslide in South Jingyang Plateau.[Methods] The horizontal and vertical saturated permeability coefficient of 54 loess samples were measured from the variable head permeability test and analysed using traditional statistics and geostatistics methods.[Results] The saturated permeability coefficient of the trench sampling area was 0.01~10 m/d and the permeability coefficient of the adit sampling area was smaller than that of the trench area

with its range of 0.0001 to 1 m/d. The spatial correlation degree of the vertical direction of the trench sampling area is medium

and the variation range is 5.05; horizontal spatial correlation degree is strong

change range is 3.50. The spatial correlation degree of the vertical direction of the adit is medium

and the variation range is 17.46. For horizontal direction

its correlation is weak with a range of 16.00.[Conclusion] The variability of saturated permeability coefficient in loess slope is larger.

关键词

Keywords

references

胡广涛.滑坡动力学[M].北京:地质出版社,1995.

Van Genuchten M T. A closed-form equation for predicting the hydraulic conductivity of unsaturated soils[J]. Soil Science Society of America Journal, 1980, 44(5):892-898.

Wagner B, Tarnawski V R, Hennings V, et al. Evaluation of pedo-transfer functions for unsaturated soil hydraulic conductivity using an independent data set[J]. Geoderma, 2001,102(3):275-297.

赵景波,邵天杰,牛俊杰.西安白鹿塬黄土渗透性与含水条件[J].地理研究,2009,28(5):1188-1196.

Mantoglou A. A theoretical approach for modeling unsaturated flow in spatially variable soils:Effective flow models in finite domains and nonstationarity[J].Water Resources Research, 1992,28(1):251-267.

郭怀成,周丰,刀谞.地统计方法学研究进展[J].地理研究,2008,27(5):1191-1202.

刘春利,邵明安.黄土高原坡地表层土壤饱和导水率和水分含量空间变异特征[J].中国水土保持科学,2009,7(1):13-18.

Wang Yunqiang, Shao Ming'an, Liu Zhipeng, et al. Regional-scale variation and distribution patterns of soil saturated hydraulic conductivities in surface and subsurface layers in the loessial soils of China[J].Journal of Hydrology, 2013,487(2):13-23.

雷祥义.陕西泾阳南塬黄土滑坡灾害与引水灌溉的关系[J].工程地质学报,1995,3(1):56-64.

王德耀,杜忠潮,张满社.陕西省泾阳南塬崩塌、滑坡地质灾害及成因分析[J].水土保持通报,2004,24(4):34-37.

Webster R. Quantitative spatial analysis of soil in the field[M]//Stewart B A, Advances in Soil Science. Springer New York, 1985:1-70.

Robertson G P, Crum J R, Ellis B G. The spatial variability of soil resources following long-term disturbance[J]. Oecologia, 1993, 96(4):451-456.

Matheron G. Principles of geostatistics[J]. Economic Geology, 1963,58(8):1246-1266.

刘蒙蒙.泾阳县南塬黄土边坡渗透系数变异性分析[D].西安:长安大学,2015.

王波,毛任钊,曹健,等.海河低平原区农田重金属含量的空间变异性:以河北省肥乡县为例[J].生态学报,2006,26(12):4082-4090.

王政权.地统计学及在生态学中的应用[M].北京:科学出版社,1999.

施小清,吴吉春,袁永生.渗透系数空间变异性研究[J].水科学进展,2005,16(2):210-215.

雷志栋,杨诗秀,许志荣.土壤特性空间变异性初步研究[J].水利学报,1985,9(9):10-21.

王政权.地统计学及其在生态学中的应用[M].北京:科学出版社,1999:35-98.

Li H R, Reynolds J F. On definition and quantification of heterogeneity[J]. Oikos, 1995,73(2):280-284.

Views

1105

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Experimental Study on Permeability Coefficient of Loess with Different Clay Content

Infiltration Characteristics and Disaster-forming Mechanism of Loess in South Jinghe Tableland

Discussion on Soil Stabilizer for Seepage Control of Canal in Loess Area

Study on Micro-structures of Loess in the Xianyang Downtown Area

Study of the Relationships Between Apparent Resistivity of Unsaturated Loess and Its Engineering Properties

Related Author

WANG Li

LI Xian

HE Jun

HONG Bo

LI Lincui

Hong Bo

Du Shaoshao

Li Xian

Related Institution

Open Research Laboratory of Geotechnical Engineering, Ministry of Land and Resources, Xian

School of Geological Engineering and Geomatics, Changan University, Xian

Shaanxi Geological Survey Center, Xian

School of Geological Engineering and Geomatics, Changan University, Xian

Key Laboratory of Mine Geological Hazards Mechanism and Control, Xian

⁰