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| 定降深抽水引起的泰斯承压含水层水平运动 | |
| 引用本文： | 王庆良,冉兴龙,郭建忠. 定降深抽水引起的泰斯承压含水层水平运动[J]. 大地测量与地球动力学, 2003, 23(1): 12-16 |
| 作者姓名： | 王庆良 冉兴龙 郭建忠 |
| 作者单位： | 1. 中国地震局第二地形变监测中心,西安,710054;长安大学水资源与水环境系,西安,710054 2. 长安大学水资源与水环境系,西安,710054 3. 甘肃工业职业学院,天水,741025 |
| 基金项目： | 国家自然科学基金 ( 4 970 2 0 40 )资助 |
| 摘 要： | 根据Darcy-Gersevanov广义渗流关系式，导出了单井定降深抽水引起的泰斯含水层水平位移和水平应变解析表达式。数值计算分析表明，定降深抽水引起的含水层水平运运方向沿径向向内，水平运动速度随抽水时间增长呈指数衰减，位移量则随抽水时间增加呈指数增长。定降深抽水引起的含水层径向应变在空间上具有近井挤压，远井拉张的分区特征，且近井挤压区随抽水时间增加不断向外扩展；切向应变主要表现为环向挤压，且其应变大小随半径增大迅速衰减，随时间增长呈指数增大。 |
| 关 键 词： | 承压含水层 定降深抽水 水平运动 应变 地居固结压缩 地面沉降 |
| 文章编号： | 1671-5942(2003)01-0012-05 |
| 修稿时间： | 2002-06-22 |
HORIZONTAL AQUIFER MOVEMENT CAUSED BY FIXED-DROP PUMPING OF GROUND WATER FROM THEIS-THIEM CONFINED SYSTEM |
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| Wang Qingliang{,)},Ran Xinglong{)} and Guo Jianzhong{)},)No. Crustal Deformation Monitoring Center,CSB,Xi'an). HORIZONTAL AQUIFER MOVEMENT CAUSED BY FIXED-DROP PUMPING OF GROUND WATER FROM THEIS-THIEM CONFINED SYSTEM[J]. Journal of Geodesy and Geodynamics, 2003, 23(1): 12-16 | |
| Authors: | Wang Qingliang{ )} Ran Xinglong{)} Guo Jianzhong{)} )No. Crustal Deformation Monitoring Center CSB Xi'an) |
| Affiliation: | Wang Qingliang{1,2)},Ran Xinglong{2)} and Guo Jianzhong{3)},1)No.2 Crustal Deformation Monitoring Center,CSB,Xi'an7100542)Department of Water Resource and Environment,Chang'an University,Xi'an7100543)Gansu Vocational Technique College,Tianshui741025 |
| Abstract: | On the basis of Darcy-Gersevanov generalized flow relation between aquifer solid and interstitial water,we have derived the analytical expressions of horizontal aquifer movement and strains induced by fixed-drop withdrawal of ground water from a single well in a Theis-Theim confined system.The numerical calculation demonstrate that,with ground water pumping,the aquifer would radically move inward,and along with pumping time increasing,the velocity of aquifer movement would exponentially decay and the corresponding horizontal displacement would increase exponentially.The radial strain induced by pumping can be divided into the inner compression zone and outer tension zone,and along with time increasing,the inner compression zone would expand outwards.The pumping induced tangential strain mainly displays compression property,its magnitude decays rapidly along with radius from the well increasing,and increases exponentially along with pumping time increasing. |
| Keywords: | ground water withdrawal of fixed-drop aquifer horizontal movement strain |
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