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題 名 | 遭遇舊地下結構之大尺寸樁施工=Large-Diameter Piling Works on Existing Basement Structures |
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作 者 | 施志鴻; 林冠宏; 許張林; | 書刊名 | 地工技術 |
卷 期 | 147 2016.03[民105.03] |
頁 次 | 頁33-40 |
分類號 | 441.17 |
關鍵詞 | 場鑄基樁; 基樁施工; 大樓重建; Bored Piles; Pile construction; Building rehabilitation; |
語 文 | 中文(Chinese) |
中文摘要 | 近年都會區之高層建築結構,除巨大的柱載重,亦有地下室深開挖的擋土需求,在縮短整 體工期考量下常選擇採逆打工法進行地下室構築。因此,施工時置入逆打鋼柱的大尺寸場鑄樁 基礎普遍地被應用在都會區高層結構。在都更的大樓重建案例中,克服舊地下結構之施作障礙 則成為另一項重要施工考量。 本文介紹在遭遇舊地下結構之大尺寸樁基礎施工時,反循環鑽掘、套管鑽掘、導鈑抓斗抓 掘與土鑽等鑽挖工法所遭遇的問題與克服要點。另外,進一步針對拆除與重建過程中常見的課 題討論,包括舊地下室之拆除、坍塌保護、新舊樁衝突處理、鋼柱置入與校正等。 |
英文摘要 | In recent years, top-down method is often adopted to construct basement for high-rise buildings in urban area. In these cases, huge column loads are often encountered that requires the use large diameter bored piles in conjunction with the installation of steel column at the stage of pile construction. Another major pile construction issue for urban renewal project is how to overcome the obstacle presenting by the existing old basement structure. This article outlines possible difficulties that may be encountered when constructing piles on top of existing basement structure, either by reverse circulation drilling, cased drilling, long-bucket grabbing, or earth drilling method. Solutions or measures to overcome these difficulties are also provided. Other details, including the removal or strengthening of existing basement structure, borehole collapsing prevention, installation and adjustment of steel columns are also addressed. |
本系統中英文摘要資訊取自各篇刊載內容。