頁籤選單縮合
題 名 | 臺灣地區地層下陷之行為與機制=The Land Subsidence Behaviors and Mechanisms in Taiwan |
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作 者 | 柳志錫; 杜富麗; | 書刊名 | 地工技術 |
卷 期 | 139 2014.03[民103.03] |
頁 次 | 頁7-16 |
專 輯 | 地盤沉陷與淹水 |
分類號 | 443.67 |
關鍵詞 | 地層下陷; 地下水位; 壓縮; Land subsidence; Groundwater level; Compression; |
語 文 | 中文(Chinese) |
中文摘要 | 台灣早期的地層下陷問題主要以屏東縣林邊、佳冬沿海地區最為嚴重,並因颱風豪雨後積水不退,而引起大家的重視,目前該區仍為全台累積下陷量最大的地區,累積下陷量已超過3公尺,主要原因為超抽地下水。其後西南沿海包括彰化、雲林、嘉義等地區亦陸續出現相同問題,為了減緩地層下陷及其可能造成的淹水等對社會、經濟與重大工程建設造成的影響,政府已研擬相關之因應措施。由於地下水位變化與地下土層特性為造成地層下陷最重要影響因子,本文分析主要下陷地區彰化、雲林、嘉義及屏東等地區之地層下陷行為,透過地層下陷監測井與地下水位觀測井所量測之資料,評估地層壓縮與地下水位變化之互制特性,藉此能更確實瞭解地層下陷機制,以協助政府擬訂有效之防治對策。 |
英文摘要 | During the past several decades it has experienced significant land subsidence in coast area of Linbian and Jiadong Townships of Pingtung County due to ground water overdrawing for fish farms. It has accumulated more than 3 meters land subsidence and has caused serious disaster due to flood resulted from typhoon. After then, it also happened land subsidence issues around Changhua, Yunlin, Chiayi Counties. For mitigating the effect of land subsidence and the caused flooding impact upon society, economy and the vital structure safety, government had proposed land subsidence prevention activities. Since the ground water fluctuations and the strata properties are the important factors of land subsidence, we compared the behaviors of deformation and stress between different aquifers in Changhua, Yunlin, Chiayi and Pingtung Counties from multilayer compaction monitoring wells and water level monitoring wells. And it also gave well understanding of the strata stress-strain situation for estimating the compaction and water level relationship to assist further investigation into the mechanism. These are advantageous providing to government a more efficient proposing in land conservation and reclamation strategy. |
本系統中英文摘要資訊取自各篇刊載內容。