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題 名 | 由先期試樁結果探討樁底灌漿之受力行為=Using Load Testing Results to Evaluate the Load Transfer Characteristics of Base-Grouted Bored Piles |
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作 者 | 張有恒; 葉仁德; 謝旭昇; 王崑瑞; | 書刊名 | 地工技術 |
卷 期 | 112 2007.06[民96.06] |
頁 次 | 頁27-36 |
分類號 | 441.17 |
關鍵詞 | 樁底灌漿; 先期試樁; 鋼筋應力計; Base-grouting; Preliminary pile load test; Rebar stress transducer; |
語 文 | 中文(Chinese) |
中文摘要 | 鑽掘基樁經過良好的樁底灌漿程序之後,如果直接由樁頂荷重與沉陷量之曲線關係研判,均可証明樁整體之容許承載力明顯提高。但樁底灌漿可能改變樁周摩擦應力及樁尖點承應力之分佈比值,因此應用樁底灌漿於先期試樁時,應謹慎評估樁周摩擦應力及樁尖點承應力之量測資料。本文列舉了台灣三處大型工地先期試樁及一處工地樁底灌漿時進行同步監測之結果,經由解析樁身所埋設之鋼筋應力計量測數據,可了解樁底灌漿對樁身軸力分佈、各地層摩擦應力與樁尖點承應力之影響。 |
英文摘要 | Various published papers and pile load testing results had shown that base-grouting the pile tip can significantly improve the allowable bearing capacity of bored piles. However, base-grouting may change the ratio between skin friction and end bearing. Therefore care must be taken to correctly interpret the load test results of a base-grouted pile. This paper describes pile load testing results of several sites where instrumented bored piles had been base-grouted and tested. The effects of base-grouting on the distribution of axial force, skin friction and end bearing were evaluated based on measurements of rebar stress transducers. |
本系統中英文摘要資訊取自各篇刊載內容。