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一種透過變位量推求隧道襯砌的應力變化之解析方法，係包括以下步驟：(S1)提供模擬模型，包含三維隧道單元、做為模型邊界之不同的複數個斷面，及其數量足以偵測隧道變形現象之測量變數與其特定斷面變化量所構成之變位模態；(S2)根據該些斷面之變位量測量值計算該隧道單元的相對變位量及該變位模態之組成量且得到襯砌的應力變化之值；以及(S3)比對襯砌應力變化與壁面的裂縫分布，視情況修正該相對變位量及變位模態之計算值以獲得與該裂縫分布相符之應力變化。本發明能在長期監測下預測裂縫發展趨勢、模擬補強工法成效、評估隧道健全度和安全性等，對隧道維護管理最佳化提供實質建議。
Disclosed is an analytical method for estimating a stress change of a tunnel lining through displacements. The method includes the following steps: (S1) providing a simulation model, wherein the simulation model includes a three-dimensional tunnel unit, a plurality of different sections as a boundary of the model, and a measurement variable and a displacement mode thereof; (S2) calculating a relative displacement of the tunnel unit and a composition amount of the displacement mode according to the measured displacement values of these sections and obtaining a value of the stress.

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