CAJ | 학술논문

隧道拓宽工程中，选取合理净距是新建分离式独立双洞隧道设计的关键，尤其是在保证既有隧道安全运营的前提下其重要性更是不言而喻。以杭金衢高速公路新岭隧道拓宽工程为依托，采用数值模拟计算方法，以既有隧道结构受力特征为研究对象，选取爆破振速和衬砌应力为主要控制参数，推导出既有隧道衬砌振速和应力与隧道净距间的对应关系，并依次得出爆破振动施工中新建隧道与既有隧道的合理净距，其可为类似工程的设计和施工提供参考。
수도탁관공정중，선취합리정거시신건분리식독립쌍동수도설계적관건，우기시재보증기유수도안전운영적전제하기중요성경시불언이유。이항금구고속공로신령수도탁관공정위의탁，채용수치모의계산방법，이기유수도결구수력특정위연구대상，선취폭파진속화츤체응력위주요공제삼수，추도출기유수도츤체진속화응력여수도정거간적대응관계，병의차득출폭파진동시공중신건수도여기유수도적합리정거，기가위유사공정적설계화시공제공삼고。
In tunnel broadening project,selection of reasonable clear distance is key for design of new separate independent double-portal tunnels,in particular its importance is self-evident on the premise of guaranteeing safe operation of the existing tunnels.Dependent on Xinling Tunnel Broadening Project on Hangzhou-Jinhua -Quzhou Expressway,this paper derives the relationship between lining vibration speed and stress of the existing tunnels and clear distance of tunnels by means of numerical simulation calculation method with stress features of the existing tunnel structures as the object of study and by selecting blasting vibration speed and lining stress as main control parameters,and obtains reasonable clear distances between new tunnels and existing tunnels in order in blasting vibration construction.The study in the paper can provide a reference for design and construction of similar project.