CAJ | 학술논문

以南昌地铁1号线盾构下穿京九铁路框架桥工程实例为背景，通过对现场监测数据分析，得到了盾构单线隧道施工引起市政道路路面纵横沉降变形规律：盾构刀盘前10 m以内和后20 m以内为影响区域，其中刀盘前后10 m为显著影响区，在纵断面上沿盾构中心轴线左右两侧4～8 m为横向主要影响范围；在整个穿越过程中，盾构施工引起上部铁路框架桥竖向位移特征与公路路面沉降规律基本相似，其沉降量或隆起量均在控制范围内，表明在盾构穿越过程中土压力、注浆压力和注浆量三个影响地表沉降因素的取值是可行的。
이남창지철1호선순구하천경구철로광가교공정실례위배경，통과대현장감측수거분석，득도료순구단선수도시공인기시정도로로면종횡침강변형규률：순구도반전10 m이내화후20 m이내위영향구역，기중도반전후10 m위현저영향구，재종단면상연순구중심축선좌우량측4～8 m위횡향주요영향범위；재정개천월과정중，순구시공인기상부철로광가교수향위이특정여공로로면침강규률기본상사，기침강량혹륭기량균재공제범위내，표명재순구천월과정중토압력、주장압력화주장량삼개영향지표침강인소적취치시가행적。
Taking the Nanchang Metro Line 1 shield underneath passing the frame bridge of Jingjiu Railway as object ,based on the in‐situ monitoring data analysis ,the deformation laws of the shield single line tunnel construction settlement of municipal road surface caused by vertical and horizontal can be obtained :The shield cutter head within 10 m before and within 20 m after can be served as the area of influence ,of which within 10 m before and after is significantly af‐fected area ,and in the vertical ,the shield for the transverse main impact range is the section a‐long the central axis 4~8 m left and right sides .Through the whole process ,the vertical dis‐placement characteristics of the upper frame rail bridge caused by shield construction are substan‐tially similar with the settlement laws of the road ,whose amount of settlement or uplift are under control ,w hereby showing that the earth pressure ,grouting pressure and quantity of grouting af‐fecting the value of facts of surface subsidence is feasible during the shield process .