CAJ | 학술논문

文章依托南京纬三路水下大直径盾构隧道工程实例，针对盾构管片衬砌结构耐久性设计，展开盾构隧道衬砌结构服役寿命预测研究。基于相似法则和可靠度理论，利用蒙特卡罗法和Matlab计算程序，采用裂缝限值准则和承载力极限准则两种服役寿命的预测方法，对隧道衬砌结构进行了系统深入的研究。结果表明，假设隧道结构建成伊始即处于侵蚀环境中，并处在没有采取防护措施的最不利条件下，则服役寿命预测值在裂缝限值准则下为124年，比承载力准则下的133年小，符合裂缝满足结构适用性、承载力满足结构安全性的工程实际情况。研究结果可为今后类似水下盾构隧道耐久性设计提供理论依据。
문장의탁남경위삼로수하대직경순구수도공정실례，침대순구관편츤체결구내구성설계，전개순구수도츤체결구복역수명예측연구。기우상사법칙화가고도이론，이용몽특잡라법화Matlab계산정서，채용렬봉한치준칙화승재력겁한준칙량충복역수명적예측방법，대수도츤체결구진행료계통심입적연구。결과표명，가설수도결구건성이시즉처우침식배경중，병처재몰유채취방호조시적최불리조건하，칙복역수명예측치재렬봉한치준칙하위124년，비승재력준칙하적133년소，부합렬봉만족결구괄용성、승재력만족결구안전성적공정실제정황。연구결과가위금후유사수하순구수도내구성설계제공이론의거。
Using the Nanjing Weisan Road large-diameter underwater shield tunnel as an example and based on the similarity rule and reliability theory, a service-life prediction was carried out for the tunnel lining in light of its durability design using the Monte Carlo method, Matlab calculation program and two prediction methods: the crack limit and bearing capacity limit criteria. The results show that the lining service life is expected to be 124 years under the crack limit criterion, 9 years less than that under the bearing capacity limit criterion, if the newly built tunnel is in an erosive environment with no protection measures.This meets the requirements for structural applicability and safety regarding the crack and bearing capacity.