CAJ | 학술논문

阐述了修正惯用法、弹性支承法和梁弹簧压杆法的计算原理，结合某盾构隧道实例，分别运用3种方法对比分析了盾构隧道弹性抗力的分布特点和规律及其对结构内力的影响。研究表明：管片接头效应主要影响衬砌弯矩，对衬砌轴力影响有限；径向弹性抗力有助于削弱管片衬砌弯矩，增大管片衬砌轴力；修正惯用法获得的弯矩值最大，弹性支承法次之，梁弹簧压杆法最小，而轴力值基本不受分析方法的影响。建议盾构隧道初步设计时采用修正惯用法，施工图设计时采用可编程的弹性支承法，工程研究分析时采用梁弹簧压杆法。
천술료수정관용법、탄성지승법화량탄황압간법적계산원리，결합모순구수도실례，분별운용3충방법대비분석료순구수도탄성항력적분포특점화규률급기대결구내력적영향。연구표명：관편접두효응주요영향츤체만구，대츤체축력영향유한；경향탄성항력유조우삭약관편츤체만구，증대관편츤체축력；수정관용법획득적만구치최대，탄성지승법차지，량탄황압간법최소，이축력치기본불수분석방법적영향。건의순구수도초보설계시채용수정관용법，시공도설계시채용가편정적탄성지승법，공정연구분석시채용량탄황압간법。
In this thesis, the calculation principles were described respectively in relation to the modified routine method, elastic supporting method and the beam-spring-compression bar method. Combined with a certain example of shield tunnel, the distribution characteristics and distribution laws of elastic resistance of shield tunnel as well as its influences on structure’s internal force were comparatively analyzed by using the three methods. Consequently, some conclusions were drawn as follows. The segment joint mainly has some influence on the lining’s bending moment, but it has little influence on the lining’s axial force. The radial elastic resistance would help to diminish the bending moment of segment lining, while it would increase the axial force of segment lining. The bending moment value calculated by modified routine method is the biggest, next is the value by elastic supporting method, and the value by beam-spring-compression bar method is the minimum. Moreover, there is little influence of different analysis methods on the axial force value. It is suggested that: using modified routine method for doing preliminary design of shield tunnel, using elastic supporting method for doing construction documents design, and using beam-spring-compression bar method for doing engineering research and analysis.