遥感技术在深圳-大亚湾沿海高速公路工程地质调查及选线中的应用

应用计算机增强和特征信息提取技术,结合航空摄影图像的立体观察对比,对卫星TM数字图像地学信息进行解译研究,并通过野外调查验证,对深圳-大亚湾沿海高速公路沿线工程地质环境进行了迅速评价,经计算机不同处理方法处理获得的TM专题信息图像在进行地质构造解译和岩土体分类中均起到重要作用,而航片在地质体边界圈定和详细定位以及灾害地质现象分析方面效果较好。在不到两个月的时间里就完成了该项目从图像处理、解译到野外调查和成图及报告编写的全过程工作,节约勘察资金50%以上,满足了公路勘查前期工作的需要,也充分体现了遥感技术的优越性。遥感解译研究与常规地质调绘方法相结合,可取得事半功倍的效果,也是公路勘察手段现代化的标志和必经之路。

THE APPLICATION OF REMOTE SENSING TECHNOLOGY IN ENGINEERING GEOLOGICAL INVESTIGATION AND THE ROUTE SELECTION OF SHENZEN-DAYAWAN COASTAL HIGHWAY

The evaluation of engineering geological environment along Shenzen - Dayawan coastal highway was quicly completed by Landsat TM digital image interpretation for geo - science ioformation study using computer information enhance and extracting techniques combining aerial photo stereoscopy and field investigating and verifying. TM theme ioformation image processed by computer using different methods has played an important part in geological structure interpretation and rock and soil mass classify. Aerial photo is usfull in geological body boundary demarcating and geological hazard phenomenon analysis. The complete work including image processing and interpretation, field check and mapping as well as report compiling had accomplished in less than two months. It is saving exploration fund more than 50%, meeting the requirement of earlier stage before road exploration, and fully reflecting the advantage of remote sensing technology. Remote sensing combining conventional method of geological field check and mapping is a state - of - the - art toal for road exploration and can get twice the result with half the effort.