摘要
在地处南迦巴瓦峰地区的西藏墨脱公路工程地质遥感勘察中,以Landsat7ETM+卫星影像为信息源,运用彩色合成、数据融合、主成分分析等数字图像处理方法,结合基于地学知识的图像识别及解译技术,对墨脱公路沿线的泥石流、滑坡、活动断裂等地质灾害进行全面解译分析及专题制图,查明了公路方案线区域内活动断裂发育特征。其中,帕隆藏布断裂带、岗日嘎布断裂带等对错拉隧道将产生较大影响。大型滑坡主要有5个,沿南迦巴瓦峰南坡的雅鲁藏布江河谷两岸发育,分布在仓孔、墨脱及洒拉库等地。泥石流、崩塌广泛发育,主要分布在雅鲁藏布江河谷、帕隆藏布河谷沿线的派、拉格-汗密、岗乡-波密一带。勘察及解译结果为墨脱公路工程线路方案选择、工程地质条件评价提供了充分的科学依据。
By means of digital image processing techniques of color image composing, image fusion, principal component analysis with landsat-7 ETM＋image, combined with image recognizing and interpreting technologies based on geology knowledge, geological disasters along Motuo highway, debris flow, landslide, active fault, etc., have been completely analyzed, interpreted and mapped by themes in surveying of highway engineering geology with remote sensing in Motuo in Namjagbarwa region. The features of active faults along schedule route have been found out, both Palongzhangbu fault zone and Gangrigabu fault zone have great influence on Cuola tunnel, five big landslides locate at both sides of Yaluzhangbu valley in north slope of Namjagbarwa, there are plentiful of debris flow and rockfall at Pai, Lage-Hanmi, Gangxiang-Bomi along Palongzhangbu and Yaluzhangbu valleys, the result has provided enough scientific evidence for selecting highway route, evaluating engineering geological conditions.
出处
《中国地质灾害与防治学报》
CSCD
2005年第3期54-58,共5页
The Chinese Journal of Geological Hazard and Control
基金
交通部第二公路勘察设计研究院委托项目<西藏墨脱公路工程地质遥感解译>资助.
关键词
西藏墨脱公路
工程地质勘察
地质灾害
图像识别
遥感解译
活动断层
公路线路方案选择
Motuo of Tibet
engineering geology surveying
geological disasters
image recognizing
remote sensing interpreting
active fault
selection of highway route scheme
作者简介
张明华（1965-），男，副教授，在读博士生，主要从事遥感及GIS应用研究．
