摘要
选取黄河三角洲地区4个年份(1976,1986,1996和2006年)的Landsat MSS/TM数据,以东营市为研究对象,对其境内建筑比较密集的典型中心城区(市中心)、县(垦利县)、镇(孤岛镇),运用ArcGIS对这3个区域在不同时间段内的遥感影像进行解译,得到建筑面积的变化情况。利用土力学的分层总和法,结合东营市经济发展的实际情况和建筑荷载状况,计算城镇建筑物对地面沉降的贡献值。计算结果表明,东营中心城区、垦利县、孤岛镇1976—2006年建筑物导致地面年平均沉降量为2.42,1.11,0.23 mm,所得结果与现有资料数据监测到的这几个地区的沉降量情况吻合较好。
By selecting Landsat MSS/TM data obtained in four years（1976,1986,1996 and 2006） in the Yellow River Delta Region and taking Dongying City as the study object,the remote sensing images of three typical regions with dense buildings（i.e.center region of Dongying City,Kenli County and Gudao Town）,which were acquired at different time periods,are interpreted by using ArcGIS software,thus obtaining the changes in the areas of the three regions.By using the layer-wise summation method of soil mechanics and combining with the economic development and building load of Dongying City,the contributions of town buildings to land subsidence are calculated.The results show that the annual average land subsidence caused by the town buildings in central region of Dongying City,Kenli County and Gudao Town from 1976 to 2006 was 2.42 mm/a,1.11 mm/a and 0.23 mm/a.respectively.These are in good agreement with the results from the existing data.
出处
《海岸工程》
2015年第3期33-43,共11页
Coastal Engineering
基金
国家自然科学基金项目--黄河三角洲地面沉降监测与形成机理研究(41276082)和渤海西南岸末次冰期以来古海岸线重建及影响因素分异研究(41106041)
国家自然科学基金青年基金项目--悬浮颗粒矿物成分对近岸水体光学参数的影响及光谱响应研究(41306190)
中国科学院知识创新工程重要方向性项目--现代河口三角洲垂向形变驱动机制与环境效应研究((KZCX2-EW-207))
海洋公益性行业科研专项--温带典型海岛地质灾害监测及风险评价与区划示范研究(2010050102)
关键词
黄河三角洲
东营
地面沉降
分层总和法
Yellow River Delta
Dongying
land subsidence
layer-wise summation method
