頁籤選單縮合
題 名 | 雲嘉地區地層下陷控制參數之探討=Investigation on Control Parameters of Land Subsidence in Yun-lin and Chia-yi Region |
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作 者 | 施清吉; 李建興; | 書刊名 | 農業工程學報 |
卷 期 | 47:2 2001.06[民90.06] |
頁 次 | 頁17-31 |
分類號 | 443.67 |
關鍵詞 | 地層下陷; 地下水; 雲嘉地區; Land subsidence; Groundwater; Yuan-chia region; |
語 文 | 中文(Chinese) |
中文摘要 | 自受壓飽和含水層抽取地下水而導致之地層下陷,其分析解可作為地層下陷之近 似模式,但式中包含兩控制參數﹣擴散係數 D �趥P抽水係數 N �諢C用於預測時,其值須為 已知。根據實測與調查資料可求得兩係數的歷年值及由此而得的估算值。近似模式應用於雲 林與嘉義沿海沉陷地區,依據觀測點之所在分成十一區,且求得兩係數之歷年值、估算值, 並予以簡易預測。 |
英文摘要 | The analytical solution of the land subsidence caused by an overdraft of groundwater from a confined aquifer could be deemed as an approximate model, which consists of two controlling parameters, the diffusivity Do and the pumping coefficient No. In field application these two coefficients should be known in advance. Field measurements and the survey of well will yield the above two coefficients across each year, from which estimated conefficents can be obtained in turn. The approximate model is applied to Yuan-Chia region, which is further divided into 11 sub-regions based upon the observing site. Estimated values of Do and No in these 11 sub-regions are obtained, and a simple prediction is performed. |
本系統中英文摘要資訊取自各篇刊載內容。