Newsletter 高速鐵路簡訊 . 交通部高速鐵路工程局
南迴鐵路段邊坡監測實驗現勘紀要 Onsite Inspection of the Slope Monitoring Experiment in the TRA South-Link Line
現勘人員現場討論。

鑒於氣候變遷令土石災害、洪水等天災發生機率攀升,且近來阿里山森林鐵路及南迴鐵路段常因土石流造成災害及營運中斷情事,為期透過先進偵測設備及數據分析技術,達成土石流發生風險可視化,藉以掌握邊坡狀況,進一步實施防範作為,讓鐵路行車更加安全無虞。
爰此,本局會同鐵路改建工程局、臺灣鐵路管理局、台灣高鐵公司等,於105年12月5、6日與NEC公司先至南迴路段辦理實地現勘,選擇適合地點以進行該公司之「土石流徵兆預警解決方案」實驗及示範性質的功能驗證(POC),經由監控設備來分析邊坡土壤狀態在降雨過程中的變化方式,希能提前土石流發生之預警時間,以減少災害及生命財產之損失。
本次現勘地點為南迴線的新吉隧道南口、富山車站、多良車站周邊等五處,勘查重點為車站附近的崩塌場域及場域周邊的表層土質、地形、訊號強度、電源等項目進行了解調查。
本次現勘場域之地形皆為陡峭的斜坡,初步判斷新吉隧道附近崩塌的風險較高,特別是多良站鐵軌上方約100公尺處進行調查後發現該處土壤偏軟,有崩塌的風險存在。經現勘調查後,評估目前較適合實施POC場域為多良站及富山站周邊處;另建議南迴其他路段如有尚未進行防災工程之邊坡,亦可再進行現勘比較及檢討。

In view of climate change causing rising probabilities of rockslides, floods and other natural disasters and that the Alishan Forest Railway and South-Link Line have recently encountered interruption and disasters caused by landslides, authorities planned to achieve the risk of landslides visualization through advanced detection equipment and data analysis technology. This will help them to immediately grasp the condition of slope, further implement preventive measures, and to make railway traffic safer.
Therefore BOHSR gathered RRB, TRA, THSRC and NEC to the South-Link Line on Dec. 5 and 6 to implement onsite inspection and select the appropriate location to conduct the experiments and demonstrative functional verification of the “Early Warning Solution of Landslides” (POC). Through analyzing the changing process of the soil state of the slope during rainfall via the monitoring equipment, authorities hoped to reduce disaster and loss of life and property by shortening the warning time of landslides.
The five inspected locations on the South-Link Line included Hsinchi Tunnel South Exit, Fushan Station, Duoliang Station and other surroundings. The main focus of the inspection was to understand and investigate the collapsed fields near the stations and the surrounding surface soil, topography, signal strength, power supply and other items.
The inspected terrains were all steep slopes. Preliminary judgment was that there is high risk of collapse near Xinji tunnel near Hsinchi Tunnel especially around 100 meters above the Duoliang Station track where the soil was found to be soft. After the inspection, the inspectors assessed that Duoliang Station and Fushan Station surrounding areas are currently more suitable for the implementation of the POC. In addition, it is recommended that a comparison and review of the existing slopes of the South-Ling Line that has not went through disaster prevention operations should be conducted.

  • 新吉隧道口崩塌情形。
  • 富山站附近土壤及植物。
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