利用顆粒體離散元素法評估高雄寶來村竹林地區之山崩潛在影響範圍

Evaluate Potential Landslide and Affected Areas in Chulin, Kaohsiung by Using a Granular Discrete Element Model

唐昭榮(Chao-Lung Tang) ； 呂喬茵(Chiao-Yin Lu) ； 王珮玲(Pei-Ling Wang) ； 謝有忠(Yu-Chung Hsieh) ； 侯進雄(Chin-Shyong Hou) ； 胡植慶(Jyr-Ching Hu) ； 林冠全(Kuan-Chuan Lin)

《工程環境會刊》 32期 (2014/01) Pp. 57-72

https://doi.org/10.6562/JEE.2014.32.4

摘要

本研究利用顆粒體離散元素法，來評估位於美瓏溪上游（荖濃溪支流）的高雄寶來村竹林地區在發生大規模崩塌後可能的影響範圍。模擬結果顯示：當崩塌發生時，土石並不會由美瓏溪直接衝進荖濃溪，但位在美瓏溪谷兩側之民房極有可能會有土石流過，造成損壞。如果西南側之潛在崩塌地與主要的崩塌地一起發生崩塌，其規模極有可能與小林村相當，而且土石會直接衝入荖濃溪，撞擊對岸民房，並堵住溪水，形成大型堰塞湖。

關鍵字

顆粒體離散元素法 ； 山崩 ； 堰塞湖

並列摘要

By using a granular discrete element model, we evaluate potential landslide and affected areas in Chulin, Baolai Village, Kaoshiung. The study area locates in the upstream area of Meilongxi River, a branch of Laonongxi River. Our modeling result shows that if a landslide event occurred, debris will not rush directly from Meilongxi River into Laonongxi River, but will be likely to damage houses along the valley of Meilongxi River. However, if another potential landslide area, which located on the south-east of the study area, slided simultaneously with the main landslide, the magnitude of landslide could be close to the landslide event in Xiaolin Village of 2009. Landslide debris will rush into Laonongxi River and damage houses on the other bank, then block the river’s passage and form a large dammed lake.

並列關鍵字

Granular Discrete Element Modeling ； Landslide ； Dammed Lake