Newsletter 高速鐵路簡訊 . 交通部高速鐵路工程局
交通部高鐵沿線地層下陷防治專案小組執行紀實 Implementation Report of HSR Alongside Land Subsidence Prevention Ad Hoc Group of MOTC
本局參加「經濟部地層下陷防治推動委員會」第17次會議情形。

為徹底解決高鐵沿線地層下陷問題,行政院先後於102年5月及102年12月核定實施「雲彰地區地層下陷具體解決方案暨行動計畫」(第一次修正)及「黃金廊道新方案暨行動計畫」,以增供地面水及減抽地下水,有效處理雲彰地區地層下陷問題,對高鐵雲彰路段之結構及營運安全具有正面效益。
交通部為掌控高鐵沿線地層下陷之監控情形及因應事宜,提供相關機關協助推動高鐵沿線地層下陷防治工作之協調平臺,自97年成立交通部高鐵沿線地層下陷防治專案小組,每季召開專案小組會議,依據行政院核定行動計畫,交通部(高鐵局)主要辦理事項包括:高鐵橋墩沉陷及行車安全之監控與因應、採工程技術方式因應新設車站之差異沈陷問題、雲彰地區高鐵兩側荷載管制之訂定、台78線與高鐵交會處附近地表測量、地層監測及路堤減載方案等,其中雲彰地區高鐵兩側150公尺荷載管制相關規定已納入鐵路法兩側禁限建規定修法程序,經交通部會銜內政部完成後將進行公告作業。另高鐵雲林車站及台78線路堤移除工程均已完工,並經業於第17次「經濟部地層下陷防治推動委員會」確認,對高鐵橋墩沉陷控制著有助益。
未來,面對水情不佳各地增抽地下水情況,本局將督導台灣高鐵公司持續辦理高鐵橋墩之安全監測,並透過「交通部高鐵沿線地層下陷防治專案小組」會議持續協調推動雲彰地區水井納管查填作業及因應措施,以維高鐵結構及行車安全。

To eradicate the land subsidence issue along HSR routes, the Executive Yuan respectively ratified "Specific Solutions and Action Plans Confronting Land Subsidence in Yunlin and Changhua Areas (the 1st amendment)" in 2013 May and "Golden Agricultural Corridor Project" in 2013 Dec. The projects successfully reduced groundwater usage which effectively slowed down the land subsidence issue in Yunlin and Changhua areas and brought positive impact toward HSR structural and operational safety in that area.
To monitor the land subsidence condition alongside HSR routes and generate response measures, MOTC established the "HSR Alongside Land Subsidence Prevention Ad Hoc Group" in 2008 to provide a coordination platform to assist relevant organizations in dealing with the matter. The MOTC Ad Hoc Group held meetings each season to implement actions that are ratified by the Executive Yuan, including: monitoring subsiding degree of HSR piers and ensuring HSR operational safety, reacting to differential subsidence issue using engineering techniques, establishing HSR alongside loading regulations in Changhua and Yunlin areas, surface measurements at the intersection of HSR and Provincial Highway 78, monitoring stratum condition and restricting HSR alongside loading, etc. The loading restrictions within 150m of HSR routes have been added in the Railway Act and will be formally promulgated after confirmation of MOI and MOTC. On the other hand, HSR additional station and the embankment dismantling construction of Provincial Highway 78 have been 100% completed and have been officially relieved in the 17th Meeting of MOEA Land Subsidence Prevention Committee which showed significant impact on the improvement of HSR pier subsiding status.
Further going, BOHSR will continue to supervise THSRC to implement safety checks of HSR piers under over-pumping groundwater circumstances. Moreover, the "HSR Alongside Land Subsidence Prevention Ad Hoc Group" will continue to promote well management measures and response actions in Changhua and Yunlin areas to ensure HSR structural and operational safety.

  • 高鐵與台78線快速道路跨交處路堤移除改高架橋完成空拍圖。
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