%0 Journal Article
%T Subsurface water filled fractures detection by borehole radar<br>利用钻孔雷达探测地下含水裂缝
%A LIU Si-xin
%A ZENG Zhao-fa
%A XU Bo
%A <br>刘四新
%A 曾昭发
%A 徐波
%J 地球物理学进展
%D 2006
%I 
%X Borehole radar is a special mode of Ground Penetrating Radar.It has several distinguished features from surface radar.For examples,by means of borehole access to regions below the surface,the antennas can be located relatively close to the anomalies or targets to be measured,resulting in more precise targets response in deep subsurface applications.The experimental site is located on the top of a granite hill west of Beijing.There is a group of boreholes intersected by many fractures;both single-hole and cross-hole measurements are carried out. The measured data are processed and interpreted.The radial detecting range is more than 30 meters at this site.The subsurface fracture distribution can be imaged very clearly.Many fractures can be "seen",and their distance from borehole and their dip angle can be determined.The azimuth determinations for these fractures are possible in some situations.It is concluded that the borehole radar is an effective tool for subsurface imaging.
%K borehole radar
%K antenna
%K fracture
%K data processing<br>钻孔雷达
%K 天线
%K 裂缝
%K 数据处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=65CE641AB2DEAAF8B2D39ECB6B6B6C80&aid=AB287B830B7E77C7&yid=37904DC365DD7266&vid=659D3B06EBF534A7&iid=0B39A22176CE99FB&sid=E6A0A363CA4FC5CF&eid=23F919F7BAF87909&journal_id=1004-2903&journal_name=地球物理学进展&referenced_num=3&reference_num=5