智能钻孔井下电视在岩溶勘察工程中的应用

Application of intelligent borehole television technique in karst investigation

智能钻孔井下电视具有直观可视、高分辨率精度、全孔井壁覆盖率、清晰精确、传输及时等特点,是认识钻孔中地质体的有效技术方法。本文以昆明长水国际机场改扩建工程场地为例,介绍智能钻孔井下电视成像技术在识别岩(土)层界面、探明地下水位和地下水活动情况、量测结构面产状、探明溶蚀裂隙及破碎地带、查明空洞及溶洞充填物等方面的应用。结果表明,智能钻孔井下电视成像技术提取的地质信息具有有效性。

Intelligent borehole television is an effective means in the investigation with the advantage of visible image,high resolution,full borehole wall coverage and timely transmission etc.A case study of the application of intelligent borehole television technique in the Changshui Airport renovation project in Kunming was carried out.The technique was used to verify the rock soil interface,identify groundwater level and activity,measure the planar attitude,investigate the karst corrosion and fracture zone,locate the cavern,and find out the infilling materials etc.The study shows the obtained information by intelligent borehole television is effective.