土压平衡盾构下穿高速公路施工控制及参数分析

盾构下穿高速公路过程中将不可避免对高速公路变形产生影响,施工参数控制不合理将会引起更大变形,影响高速公路的正常运营。为此,盾构下穿高速公路过程中要严格控制土仓压力、推进速度、同步注浆量及注浆压力,同时加强路面变形监测,以减小盾构施工对高速公路变形的影响,保证盾构顺利下穿高速公路。

Construction Control and Parameter Analysis for EPBS beneath Express Highway

It will inevitably have an impact on express highway during shield construction beneath express highway with deformation. If construction parameters are controlled improperly, it will cause greater deformation, affecting normal operation of express highway. To this point, in shield beneath express highway process, soil and chamber pressure, advancing speed, synchronous grouting and grouting pressure must be strictly controlled, while pavement deformation monitoring must be strengthened, in order to reduce shield construction on express highway deformation, ensuring that shield goes smoothly beneath express highway.