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torsional strength 抗扭強度。

torsk

Besides , this paper adopts the random finite element method , uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock , coefficient of lateral pressure , height or buried depth of vertical loading , elastic resistance coefficients of surrounding rock , elastic modulus of support structure , unit weight of concrete , thickness of the structure as well as torsional strength and compression strength of concrete and etc . , as random variables , applies the monte - carlo method to sampling by computer , preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel , and obtains the related displacement of the lining , mean value and variance of internal force , and computed the reliability index of lining structures 此外,本文采用隨機有限元方法,將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量,應用蒙特卡洛理論進行計算機隨機取樣,對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估,得出了襯砌的相關位移與內力的均值和方差,并計算出了相應的襯砌結構可靠指標。