利用隧道變形量測資料反求設計參數

Estimation of Field Parameters from Measured Displacements in Tunnelling

鄺寶山(Po-Shan Kwong) ； 王文禮(Wen-Li Wang) ； 黃燦輝(Tsan-Hwei Huang)

《地工技術》 46期 (1994/06) Pp. 57-66

https://doi.org/10.30140/SG.199406.0005

摘要

岩體的變形性質與當地應力為隧道設計之重要參數。於實際應用上，可將隧道開挖視為一大型之現地試驗，本文將介紹利用隧道開挖時由檢測系統所量測的變形量，反求這些設計參數值之分析方法。文中將簡述隧道反算分析之觀念、方法及其應用上之限制，並以台灣中部三處隧道工程為案例，說明隧道反算分析為一種既經濟且快速能獲得現場岩體特性的方法。

關鍵字

隧道檢測 ； 反算分析 ； 設計參數

並列摘要

The properties of rock mass and in-situ stresses are important parameters for tunnel design. In engineering practice, the underground openings can be considered as large-scale in-situ tests. In this paper, a back-analysis method based on the measured displacements during excavations of pilots or tunnels is introduced to estimate these parameters. The basic concept, analysis procedure, advantages and limitations of the back-analysis method in tunnelling are also described. Three examples of tunnels in central Taiwan are presented to show the efficiency and applicablility of the back-analysis method for estimating the field parameters of rock mass.

並列關鍵字

tunnel monitoring ； back-analysis ； parameters for design