CAJ | 학술논문

隧道二衬开裂使隧道的稳定性和安全运营受到威胁，对其力学机理及治理措施的研究具有重要意义。为此，引入某浅埋偏压隧道为研究对象，首先进行现场调查开裂情况，发现其进口右洞（远离山体侧）左侧拱顶有十几米的纵向开裂。根据该隧道的真实情况建立离散元模型，进行计算分析，得出以下结果：隧道左、右洞拱顶受到来自左侧的地形和岩层结构偏压，其右洞的偏压应力超过二衬的承载能力而发生破坏。在此基础上，提出隧道二衬开裂的处理措施为拱、墙局部裂损部位的治理。
수도이츤개렬사수도적은정성화안전운영수도위협，대기역학궤리급치리조시적연구구유중요의의。위차，인입모천매편압수도위연구대상，수선진행현장조사개렬정황，발현기진구우동（원리산체측）좌측공정유십궤미적종향개렬。근거해수도적진실정황건립리산원모형，진행계산분석，득출이하결과：수도좌、우동공정수도래자좌측적지형화암층결구편압，기우동적편압응력초과이츤적승재능력이발생파배。재차기출상，제출수도이츤개렬적처리조시위공、장국부렬손부위적치리。
The tunnel second lining cracking threatens the tunnel stability and safety of the operation, so the study of its mechanical mechanism and control measures has a great significance. For this purpose, taking a shallow bias tunnel as research object, all on-site investigation cracking situation is investigated to find dozens of meters of longitudinal crack on the left side of the dome for the import right hole ( away from the side of the mountain ) . Discrete element model is set up according to the real situation of the channel, and then the calculation and analysis is done to obtain the following resultbias compression of the tunnel vault around hole comes from the left side of the terrain and rock structure, the right hole bias stress exceed the bearing capacity of the second lining,so the damage has happened. On this basis, the measures for the arch tunnel second lining cracking is the crack treatment of partial walls and arches.