CAJ | 학술논문

通过对Φ8020 mm敞开式TBM主体结构的分析，建立了TBM主梁的三维模型，并以此为基础进行受力计算。阐述了主梁在施工过程中的5种受力状态，分析了这几种工况下主梁的应力和最大变形量。计算结果表明，主梁满足各种载荷下的刚度和强度要求，但是个别位置存在集中应力问题，为保证施工安全需加以消除。
통과대Φ8020 mm창개식TBM주체결구적분석，건립료TBM주량적삼유모형，병이차위기출진행수력계산。천술료주량재시공과정중적5충수력상태，분석료저궤충공황하주량적응력화최대변형량。계산결과표명，주량만족각충재하하적강도화강도요구，단시개별위치존재집중응력문제，위보증시공안전수가이소제。
Through the analysis of the main structure of the open style TBM for Φ8 020 mm ,we establish the three-dimensional model of the main beam ,and calculate the force on it .Five kinds of conditions of the stress state in the process of construction are analyzed ,and the stress and maximum deformation of the main beam in the several conditions are got .According to the calculation results ,the main beam meet the requirement of stiffness and strength .But there are some stress concentration problems in individual positions ,needs to be eliminated for construction safety .