校區邊坡管理預警值之研究－以國立陽明大學為例

Research Campus Slope Management Forewarning Value - A Case Study of National Yang-Ming University

王錦華(Chin-Hua Wang)

指導教授 ： 張寬勇

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00214

摘要

國立陽明大學為國內獨特沿山坡地發展之大學校園，由於校區位屬山坡地，邊坡之安全關係到全校師生及房舍之保全，因此對於校區之地層滑動必須監測其安全與變化情形，以供緊急狀態發生之際，得以事先獲得預警，迅速處理，以維繫師生安全。
造成學校邊坡破壞的主要因素為大規模降雨，其次為校區是否能有效排水。本研究試圖從集中或高強度降雨、降雨延時及排水與地下水位能否有效消散、降低來探討，並希望藉以研訂以最大降雨強度及有效累積降雨量來制定校區邊坡管理之警戒值與行動值，很迅速及簡單地從降雨量資訊判斷。另外也希望從降雨和地下水位變化及消散排水之時間延時來做為另一項邊坡管理之警戒值輔佐指標。
研究結果顯示，當最大降雨強度達76 mm/hr、有效累積降雨量達824 mm 時，校區即可能會發生邊坡破壞，以此做為邊坡管理之行動值；當最大降雨強度在46 mm/hr、有效累積降雨量在630 mm時，似有邊坡發生破壞之虞，以此做為邊坡管理之警戒值。另降雨和地下水位變化及消散排水之時間延時存在一關聯性，可以此研訂出邊坡管理之警戒值，以校區建置之M-1、M-2及M-3等3個測站在以長歷時降雨(大於50小時以上)之降雨期間的各測站地下水位變化量分析，其中M-1測站之水位變化警戒值為9M，M-2測站之水位變化警戒值為10M，M-3測站之水位變化警戒值為7M ；另在降雨事件時間結束點前，水位開始出現下降的時候，水位量的差值變化會逐漸減少，代表水位逐漸下降，其M-1測站之降雨延時警戒值為第111小時，M-2測站之降雨延時警戒值為第111小時，M-3測站之降雨延時警戒值為120小時。

關鍵字

山坡地 ； 自動監測 ； 邊坡管理 ； 警戒值 ； 行動值

並列摘要

National Yang-Ming University for domestic unique development along the hillside campus, Since the campus is a bit hillside, Safe slope, related to the safety of the school's teachers and students, as well as the protection of premises, so for the sliding slope campus must monitor their safety and changes in circumstances, for the state of emergency at the time of the occurrence, to get advance warning, and thus can be handled expeditiously, in order to maintain the safety of students and teachers.
Campus slope failure is mainly due to massive rain down, followed by campus environment can not be effectively drained. this study tries from concentrate or high-intensity rainfall, rain delay, drainage and groundwater can not effectively dissipate and reduce to explore, I hope with the greatest rainfall intensity and accumulated rainfall amount effective to develop warning value and action value, used as a campus slope monitoring and management, very quickly and easily rainfall information from the judge. there is also hope that the situation changes from rainfall and groundwater levels, and relationships dissipate drainage and time delay, develop warning value of another slope monitoring management indicators as his assistant.
The results of this study show that when the maximum rainfall intensity of 76 mm / hr, the effective amount of accumulated rainfall reached 824 mm, the campus of slope failure that may occur, may use this as a warning value slope monitoring management; when the maximum rainfall intensity at 46 mm / hr, the effective amount of accumulated rainfall in 630 mm, seems in danger of slope failure occurs, may use this as a warning value slope monitoring management. another case of rainfall and groundwater level changes, and dissipate drainage and time delay time there is a correlation, this study can set a warning value slope monitoring management, To build the campus of M-1, M-2 and M-3 and other three stations, the amount of change in the groundwater level in the case of each station long duration rainfall (greater than 50 hours) of rainfall during the analysis, M-1 where the water level changes in the station's warning value is 9M, M-2 where the water level changes in the station's warning value is 10M, M-3 where the water level changes in the station's warning value is 7M; the other end point in time before the rain event, the water level began to decline, the amount of the difference between the change in water level will gradually decrease, representing the water level gradually decreased,where M-1 station in rain delay to set the warning value is 111 hours, M-2 station in rain delay to set the warning value is 111 hours, M-3 station in rain delay to set the warning value is 120 hours.

並列關鍵字

Hillside ； Automatic Monitoring ； Slope Management ； Warning Value ； Action Value

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