CAJ | 학술논문

以唐家塬隧道为工程背景，通过现场监测拱顶下沉、围岩收敛、围岩压力、初衬与二衬接触压力和二衬混凝土应变，对监测数据进行整理分析后得出结论：超大断面黄土隧道围岩变形大致经历了急剧变形、持续增长、缓慢增长3个阶段；初次衬砌的拱顶下沉量要远远大于围岩水平收敛量，围岩变形主要表现为整体下沉（建议施工单位采用双侧壁导坑预留核心土方法来控制隧道整体下沉）；隧道断面围岩压力分布不均匀，存在明显的偏压现象；初衬与二衬的接触压力有拱顶向拱脚传递的趋势；二衬承受较大的荷载。
이당가원수도위공정배경，통과현장감측공정하침、위암수렴、위암압력、초츤여이츤접촉압력화이츤혼응토응변，대감측수거진행정리분석후득출결론：초대단면황토수도위암변형대치경력료급극변형、지속증장、완만증장3개계단；초차츤체적공정하침량요원원대우위암수평수렴량，위암변형주요표현위정체하침（건의시공단위채용쌍측벽도갱예류핵심토방법래공제수도정체하침）；수도단면위암압력분포불균균，존재명현적편압현상；초츤여이츤적접촉압력유공정향공각전체적추세；이츤승수교대적하재。
Based on the background of Tangjiayuan tunnel, through on-site monitoring of crown settlement, surrounding rock convergence, surrounding rock pressure, contact pressure between primary and secondary lining and concrete strain of second lining, conclusion has obtained by monitoring data for analysisurrounding rock deformation of highway tunnel with super-large cross section in loess has gone through three stages, which are first rapid deformation, second sustainable growth, third slow growth. The vault crown settlement is greater than horizontal convergence displacement, deformation of primary support mainly presented overall sink. It is suggested that the construction unit should adopt the double drift method to control overall sink. The distribution of left and right sides of the tunnel surrounding rock pressure is uneven, and this is a clear bias phenomenon. Contact pressure between primary support and secondary lining has transmission tendency from the arch to the skewback. Secondary lining bears a greater load.