The Analysis and Comparison of Soil Dielectric Constant-Water Content Models

摘要：

Based on the relational model of soil dielectric constant -water content, the Time Domain Reflectometry (TDR) is often used for estimating soil water content. Firstly, the features of Topp model, Mixing model and Diffusion model are compared. Then, the causes of errors in each model are analyzed with test data. The results show that the parameters of Mixing model and Diffusion model are too randomly to be determined. Although the Topp model causes deviations for not considering the soil components, it can get good fitting effect in practical application with simply being revised.

关键词： Time Domain Reflectometry dielectric coanstant water content Topp model

作者: Haibo Lu Zhaotian Zeng YanlinZhao Huagui Liu

作者单位: Guangxi Key Laboratory of Constructional Engineering Test, Guilin University of Technology; No.12, J Research Institute of Preventing and Mitigating Disasters, College of Civil Engineering, Guangxi Uni

会议类型: 国际会议

会议名称: 2012 International Conference on Electric Technology and Civil Engineering(2012 电子技术与土木工程国际会议 ICETCE 2012)

会议地点: 三峡

会议语种:英文

页码: 1156-1159

在线出版日期: 2012-05-18（万方平台首次上网日期，不代表论文的发表时间）