| 近30年南京市浅层地温场变化规律研究 |
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| 引用本文： | 王宝军,施斌,姜洪涛,赵理政.近30年南京市浅层地温场变化规律研究[J].高校地质学报,2009,15(2). |
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| 作者姓名： | 王宝军 施斌 姜洪涛 赵理政 |
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| 作者单位： | 1. 南京大学,地球科学与工程学院,210093,南京
2. 南京大学,地理与海洋科学学院,210093,南京 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 在收集南京市单一观测站点近50年气温资料和近30年浅层地温数据的基础上,对南京市地温变化趋势及其与气温变化的相关性进行了分析,对不同深度定时地温变化、日均地温伞年变化、地温日较差变化等进行了比较,同时也对地温变化对城市浅层土工程性质可能带来的影响进行了分析.结果表明:地温场与气温场变化规律基本一致,但存在一定的滞后现象;南京市月均地温变化规律基本相同,最高值出现在7,8月份,最低值出现在1,2月份;近30年来浅层地温场总体呈现上升趋势,其中地表上升最大值达2.8℃,0～20 cm土层温度变化幅度比较接近,上升最大值达2.0℃,40 cm处最大值达1.75℃;30年来地表最大温差高达84.5℃,40 cm深度最大地温差也超过27.5℃,因此多年地温变化对城市浅层土工程性质的影响不容忽视.
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| 关 键 词： | 地温场 浅层土 气温变化 工程地质性质 南京市 |
Characteristics of Ground Temperature Variations in Superficial Soil Layers for Nanjing in Recent 30 Years |
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| WANG Bao-jun,SHI Bin,JIANG Hong-tao,ZHAO Li-zheng.Characteristics of Ground Temperature Variations in Superficial Soil Layers for Nanjing in Recent 30 Years[J].Geological Journal of China Universities,2009,15(2). |
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| Authors: | WANG Bao-jun SHI Bin JIANG Hong-tao ZHAO Li-zheng |
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| Affiliation: | WANG Bao-jun1,SHI Bin1,JIANG Hong-tao2,ZHAO Li-zheng11. School of Earth Sciences , Engineering,Nanjing University,Nanjing 210093,China,2. School of Geographic , Oceanographic Sciences |
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| Abstract: | Through collecting the measured data, including the atmospheric temperatures of recent 50 years and the ground temperatures at different depths of recent 30 years at an observation station in Nanjing city, the relationship of the ground temperatures with the atmospheric temperatures and the changing trend of ground temperatures are analyzed. The variations of ground temperatures, variation of daily mean ground temperatures and daily ranges of ground temperatures are also studied. The results show that, the ... |
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| Keywords: | ground temperature superficial soil layers atmospheric temperature change engineering geological properties Nanjing |
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