英文篇名
THE APPLICATION OF THE CONVERGENCE-CONFINEMENT METHOD TO THE NEW AUSTRIAN TUNNEL METHOD
作者
李煜舲
關鍵字
岩石隧道開挖、互制作用、收斂圍束法、回歸分析、前進效應
摘要
新奧地利隧道施工法為國內外隧道開挖支撐工程之主要施工方法,然目前對於瞭解新奧工法分析設計之步驟和流程,仍有待討論與確立的空間。因此,本文主要的目的乃是介紹收斂圍束法理論和建立簡單的分析計算模式,考量以現地隧道收斂計測資料為依據,經由回歸分析而獲得相關模式參數,進而提出模擬實際隧道開挖支撐互制行為之分析方法。本文內容包括收斂圍束法理論和分析模式之介紹、假設案例之計算步驟和分析說明,以及實際鐵公路隧道工程案例之應用等。分析結果包含前期位移量、無支撐距離位移量、岩體彈性模數、結構支撐應力和縱剖面變形曲線等。
英文摘要
The New Austrian Tunnel Method is famously and usually used method in tunnel excavation. nevertheless, it is always lack of the evident methods for analysis and design. Therefore, the objectives of this paper are the introduction of the Convergence-Confinement Method, the establishment of steps of analysis and calculation by means of the regression analysis obtained from the measurements, and the prediction of interaction between rock mass and support system in tunnel excavation. The content of this paper includes the analysis and illustration of calculation steps in supposed case of tunneling, the application of analytical calculation to the railway tunnel and the road tunnel. According to the analytical calculations obtained, the displacements of pre-stage and of unsupported distance, the modulus of elasticity of rock mass, the pressure of support system, and the longitudinal deformation curve are particularly observed.