| 粘土中电磁波速度与含水量关系研究及应用 |
| |
| 引用本文： | 吴信民,曹俊昌,杨亚新,刘超英,张宝松.粘土中电磁波速度与含水量关系研究及应用[J].水文地质工程地质,2007,34(5):120-122,127. |
| |
| 作者姓名： | 吴信民 曹俊昌 杨亚新 刘超英 张宝松 |
| |
| 作者单位： | 1. 东华理工学院,南昌,330013
2. 浙江省水利河口研究院,杭州,310020 |
| |
| 摘 要： | 本文通过室内不同含水量情况下粘土中电磁波速度的测试,研究了探地雷达电磁波在粘土中的传速播度,提出了粘土中电磁波速度随着含水量增加呈一阶负指数规律下降的理论模型,实际工作中,粘土中电磁波的传播速度可取80~200mm/ns。这一模型应用于某水库大坝探测漏水通道的工程实际中。开挖验证的结果表明:用探地雷达测量资料解释的该大坝漏水通道在平面上的投影位置与开挖结果相符合,漏水通道深度与实际开挖结果基本一致。
|
| 关 键 词： | 探地雷达 电磁波速度 粘土 模型 含水量 |
| 文章编号： | 1000-3665（2007）05-0120-03 |
| 修稿时间： | 2006-02-242006-08-13 |
Research of the relation between velocity of electromagnetic wave and water content in clay and its application |
| |
| WU Xin-min,CAO Jun-chang,YANG Ya-xin,LIU Chao-ying,ZHANG Bao-song.Research of the relation between velocity of electromagnetic wave and water content in clay and its application[J].Hydrogeology and Engineering Geology,2007,34(5):120-122,127. |
| |
| Authors: | WU Xin-min CAO Jun-chang YANG Ya-xin LIU Chao-ying ZHANG Bao-song |
| |
| Institution: | 1. East China Institute of Technology, Nanchang 330013, China ; 2. Zhejiang Institute of Water Conservancy and Estuary, Hangzhou 310020, China |
| |
| Abstract: | Velocity of electromagnetic wave in clay is studied through experiment of the relation between velocity of electromagnetic wave and different water contents in lab. The theoretic model, when the water content increases, the penetrating velocity of electromagnetic wave decreases by the rule of one rank negative exponential, is brought forward, and values of velocity can be taken in the range of 80 - 200mm/ns in field work. Using this model, to detect path of leaking water in a reservoir dam with GPR, the results show that the result by GPR explanation accords with practical depth and plane projection position of channel of leaking. |
| |
| Keywords: | ground penetrating radar(GPR) velocity of electromagnetic wave clay model water content |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
