| 參觀人次：1910451 | 108 年瀏覽人次：204499 |
題名載重及抽水作用下地層下陷數值模式之建立與應用(光碟版)Development and Application of Land subsidence Numerical Model due to Surface Loading and Groundwater Pumping
台北市 : , 10512
英文摘要This study first collected and analyzed the groundwater level data and land subsidence data in the Zhuoshui River alluvial fan, and then examined the correlation of layered groundwater levels in vertical and horizontal directions. The correlative analysis of layered groundwater levels could be used to check the reliability of hydrogeologic setting in vertical direction, and demonstrate the distribution of different soils in horizontal direction. Based on calibrated and verified soil parameters, three land subsidence probability models were used to conduct different time-scale assessments of land subsidence potential including long-time, real-time, and annual estimations. The long-time land subsidence assessment is suitable to engineering policy planning but can be substantially influenced by the uncertainty of pumping rate. In addition, for the real-time land subsidence probability model, land subsidence potential could be underestimated and real-time groundwater level could not be obtained. Therefore, the annual-rolling land subsidence probability model was appropriate for warning analysis of land subsidence potential. The annual-rolling land subsidence probability model was used to assess the land subsidence potential the Zhuoshui River alluvial fan in 2016 and identify warning area of land subsidence. If the pumping well is located in the land subsidence warning area, the groundwater resource management requires to be conducted by integrating groundwater level variation with land subsidence potential. However, the groundwater level variation is only considered to manage groundwater resource while the pumping well is not located in the land subsidence warning area. In addition, this study also developed and evaluated a land subsidence model simultaneously considering groundwater pumping and surface loading involving static loading of engineering structure and dynamic loading of traffic.
AD005220 台中辦公區 圖書室 10512 在館 0A01 0000098442
FD005761 水利規劃試驗所 本所圖書室 10512 在館 0F01 0000098442