Abstract：Research purposes: The remote sensing interpretation technology for railway geology engineering，as a complex system work，is difficult to get good effect only by using the single data or method． To improve the accuracy and quality of the interpretation，this paper studies the application of data fusion technology in the remote sensing interpretation．
Research conclusions: ( 1) The remote sensing interpretation accuracy for unfavorable geological condition can be enhanced by using the data fusion technology． ( 2) The quantitative interpretation and analysis for the unfavorable geological condition can be realized by using the 2D interpretation method along with the 3D interpretation method．( 3) The study should be strengthened on the application of fusion of remote sensing with the geophysical prospecting to extend the application range of remote sensing interpretation．
Zhuo Baoxi． The Role of Aerial Surveying and Remote Sensing Technology in Railway Survey and Design［J］Journal of Railway Engineering Society，2006( Z1) :9 －14．
Gao Shan，Feng Guangsheng． Application Research on 3D Remote Sensing Technique for Railway Engineering Geology Investigation ［J］． Railway Investigation and Surveying，2009( 1) :36 －39．
Zhuo Baoxi． Present Situation and Prospect of Application for Engineering Geology of Remote Sensing［J］． Journal of Engineering Geology，2004( Z1) :450 －454．
［5］ TB 10041—2003，铁路工程地质遥感技术规程［S］．
TB 10041—2003，Code for Technique on Remote Sensing of Railway Engineering Geology［S］．
［6］ 卓宝熙． 工程地质遥感判释与应用［M］． 北京: 中国铁道出版社，2003．
Zhuo Baoxi． The Interpretation and Application on Remote Sensing of Engineering Geology［M］． Beijing:China Railway Publishing Company，2003．
2011, Vol. 28 
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