| 用GPS监测西安市南郊地壳形变 |
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| 引用本文： | 崔笃信,王庆良,王建华,梁伟锋.用GPS监测西安市南郊地壳形变[J].大地测量与地球动力学,2003,23(2):47-51. |
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| 作者姓名： | 崔笃信 王庆良 王建华 梁伟锋 |
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| 作者单位： | 中国地震局第二地形变监测中心,西安,710054 |
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| 基金项目： | 国家自然基金 ( 4 970 2 0 40 )资助 |
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| 摘 要： | 介绍了用GPS监测到的西安市南郊的地壳三维形变，并与1990年前后的传统测量结果相比较，分析了西安市的地壳形变特征。结果表明：西安市南郊地面沉降速率有所减慢，但水平形变显著。观测结果与颗粒位移模型(GDM)模拟的结果具有较好的一致性，说明导致地面形变的主要因素为过量抽取地下水。
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| 关 键 词： | GPS 地壳形变 地裂缝 含水层 颗粒位移模型 |
| 文章编号： | 1671-5942(2003)02-0047-05 |
| 修稿时间： | 2003年1月13日 |
MONITORING THREE DIMENSION CRUSTAL DEFORMATION IN SOUTH SUBURB OF XI'AN CITY BY GPS |
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| Cui Duxin,Wang Qingliang,Wang Jianhua and Liang Weifeng.MONITORING THREE DIMENSION CRUSTAL DEFORMATION IN SOUTH SUBURB OF XI''''AN CITY BY GPS[J].Journal of Geodesy and Geodynamics,2003,23(2):47-51. |
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| Authors: | Cui Duxin Wang Qingliang Wang Jianhua and Liang Weifeng |
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| Abstract: | In this paper,the three dimensional crustal deformation monitored by GPS in south suburb of Xi'an city is discussed.The feature of crustal deformation is analyzed and compared with the results from the traditional survey before 1990.The comparison indicates that the subsiding rate decreases a little,but the horizontal deformation is evident.The surveyed subsidence is in accord with the result simulated by using the Granular Displacement Model(GDM).The main factor causing ground deformation is pumping underground water too much. |
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| Keywords: | Xi'an city crustal deformation ground fissure aquifer granular displacement model |
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