含水量
山崩
土壤科学
电阻率和电导率
环境科学
渗透(HVAC)
电阻率层析成像
重量分析
岩土工程
水分
比例(比率)
地质学
材料科学
工程类
复合材料
电气工程
地理
有机化学
化学
地图学
作者
V. Vivek Sai,T. Hemalatha,Maneesha Vinodini Ramesh
标识
DOI:10.1109/wispnet.2017.8299862
摘要
Landslides are ruinous disaster that claim loss of many life and property. In order to develop an early warning system to detect landslides, the vital parameters that trigger the landslides should be identified and monitored. Soil moisture content is one of the vital parameter that provides information about the dynamic changes in the infiltration rate through different soil layers due to rainfall. Deploying moisture sensors in multiple layers at different depths increases the complexity and cost of deployment for large scale monitoring of landslides. In this paper we propose a system using electrical resistivity to continuously monitor moisture variations in multiple soil layers, at spatially distributed locations. Electrical resistivity technique is used as a non-destructive geotechnical method to derive the large-scale soil subsurface properties, especially gravimetric soil moisture content. An experimental set up has been implemented to derive the in-situ gravimetric soil moisture content. The relationship of electrical resistivity with soil moisture content and bulk density is derived based on extensive experimentations. Detailed statistical characterization of the results is performed. Comparison of the experimentation results with real moisture values are performed and the effectiveness of the proposed system has been shown in this paper.
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