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題 名 | 隧道鄰近邊坡崩坍整治處理案例=Case Study of Treatment for Landslide Caused by Tunnel Excavation |
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作 者 | 林峻弘; 王文禮; 黃文; | 書刊名 | 地工技術 |
卷 期 | 72 1999.04[民88.04] |
頁 次 | 頁35-44 |
分類號 | 441.9 |
關鍵詞 | 崩坍; 隧道開挖; 整治; 偏壓; Landslide; Tunnel excavation; Treatment; Unbalanced pressure; |
語 文 | 中文(Chinese) |
中文摘要 | 本文主要在探討南部某單線鐵路隧道因緊鄰邊坡,在隧道施工時引發邊坡崩坍之 原因及其結果,並提出整治方案加以說明。調查結果顯示:影響本隧道之坍滑區共有三處, 其中位於兩端洞口上方之邊坡坍滑係因洞口開挖所引致,再加上豪雨侵蝕使其更加擴大, 惟洞口處之坍滑均屬淺層滑動。位於隧道中央之S2坍滑區即主要影響隧道路線之滑動 區,其坍滑係屬深層滑動,隧道處的岩體受開挖擾動造成邊坡滑動抵抗力降低以及隧道 偏壓為道坡崩坍之主要因素。根據調查結果,本案之整治應以邊坡之穩定處理為先決條 件,隧道偏壓則以減輕覆土重及採較剛性之支撐為宜。 |
英文摘要 | This paper describes the investigation and treatment of landslide caused by excavation of a single-track railway tunnel in Southern Taiwan. According to the results of investigation. there are three landslide areas along the tunnel. Two of them(S1 and S3) are located at portal areas, which were caused by portal wxcavation and enlarged after heavy reinfall. These landslides are categorized as shallow-depth ones compared to the major landslide zone(S2) located in the middle section of the tunnel. S2 landslide was caused by tunnel excavation and applied significant unbalanced pressure on the sidewall of the tunnel. The remedial measures applied to these landslide areas are stabilization of the slopes with anchor and rockbolt reinforcements. For S2 landslide, some of the overburden was removed to reduce the unbalanced pressure. |
本系統中英文摘要資訊取自各篇刊載內容。