物探与化探2012，Vol.36Issue(3)：457-461,5.
探地雷达在多年冻土区正演模型研究及应用
THE STUDY AND APPLICATION OF THE GROUND PENETRATION RADAR TO THE FORWARD MODELING OF PERMAFROST AREA
胡俊 1俞祁浩 1游艳辉 1钱进2
作者信息
- 1. 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃兰州730000
- 2. 四川交通运输厅交通勘察设计研究院,四川成都610017
- 折叠
摘要
Abstract
Based on an analysis of the applied condition of Ground-Penetrating Radar in permafrost areas in combination with the forward modeling and practical examples, the authors conducted researches on the effectiveness of applying the ground penetrating radar to surveying the distribution, burial depth, storage situation of the thick layer subsurface ice and types of the permafrost in the permafrost area. The results show that remarkable difference in the permittivity exists between the thick layer subsurface ice and the surrounding geological bodies, resulting in the difference of phase characteristics, amplitudes, reflected waves and reflected wave groups of radar waves. The ground-penetrating radar is thus effective in surveying different characteristics of the thick layer subsurface ices. As for the ice-poor permafrost and ice-bearing permafrosl, the ground-penetrating radar can also effectively distinguish various permafrost situations in combination with drilling exploration and some other exploration methods due to the difference existent in the storage situation and the distribution of ice crystals in the permafrost layer.关键词
探地雷达/多年冻土区/介电常数/冻土类型划分Key words
ground penetrating radar/ permafrost/ forward modeling/ permittivity分类
天文与地球科学引用本文复制引用
胡俊,俞祁浩,游艳辉,钱进..探地雷达在多年冻土区正演模型研究及应用[J].物探与化探,2012,36(3):457-461,5.
