CAJ | 학술논문

文章以南京纬三路过江隧道为工程背景，通过合理简化假设，建立了盾构隧道无衬垫接头在不考虑螺栓作用和考虑螺栓作用情况下的受弯计算模型，推导了不同轴力作用下不同受力阶段中接头转角弯矩关系的显式解析解。并将不考虑螺栓作用时的解析解与有限元数值计算模型进行对比，表明了理论分析中所采用的简化假设的准确性。利用解析解分析了不同轴力时有无螺栓情况下接头受弯力学行为的差异，比较了接头的极限弯矩，总结了螺栓的作用，对工程设计有较大参考价值。
문장이남경위삼로과강수도위공정배경，통과합리간화가설，건립료순구수도무츤점접두재불고필라전작용화고필라전작용정황하적수만계산모형，추도료불동축력작용하불동수력계단중접두전각만구관계적현식해석해。병장불고필라전작용시적해석해여유한원수치계산모형진행대비，표명료이론분석중소채용적간화가설적준학성。이용해석해분석료불동축력시유무라전정황하접두수만역학행위적차이，비교료접두적겁한만구，총결료라전적작용，대공정설계유교대삼고개치。
Based on the Nanjing Weisan Road river-crossing tunnel, and by means of a rational simplified as-sumption, a calculation model for the flexural behaviors of non-gasket segment joints in shield tunnels is estab-lished with and without considering bolt action, and an explicit analytic solution is derived for the joint moment/rotation relationship under different axial forces in different loading stages. Accuracy of the simplified assumption used in the theoretical analysis is verified by comparing the analytic solution without considering bolt action with that of a finite-element numerical calculation model. Additionally, the analytic solution is used to analyze the dif-ferences of joint flexural mechanical behavior under an axial force with or without a bolt, to compare the ultimate bending moment of the joints and summarize the function of the bolt, providing a reference value for engineering design.