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上海市闸北区大统路地道改扩建基坑斜上穿合流污水8#支线。因坑底与合流管距离小,卸载大,施工扰动控制难度大。文章结合工程特点,采用钻孔灌注桩及压密注浆技术进行合流污水管变形控制。采用有限元方法对相应工程措施进行模拟,与未采取措施工况进行对比,验证控制措施的有效性,可为类似工程参考。
Dacong Road, Zhabei District, Shanghai tunnel reconstruction of the basic slope of the upper wear Hopu effluent 8 # feeder. Due to the bottom of the confluence with the bottom of the small, unloading large, difficult to control construction disturbance. Combined with engineering features, the article uses bored pile and compaction grouting technology to control the confluence of sewage pipe deformation. The finite element method is used to simulate the corresponding engineering measures and compared with the situation without the measures to verify the effectiveness of the control measures, which can be referred to for similar projects.