Protection Design and Influence Analysis of Deep Foundation Pit Beside High-voltage Pole and Tower in Soft Soil Layer
Based on the 12-meter-deep tunnel foundation pit of an"upper to lower"power tunnel project in Hangzhou,which is only 9.5 m away from the current 110 kV high-voltage pole and tower,this paper discusses the design ideas and key points of the deep foundation pit scheme beside the high-voltage pole and tower in soft soil layer,and analyzes the influence of foundation pit construction on the iron tower by numerical calculation combined with field measurement.The measured data show that the vertical displacement of the tower foundation is 3.54 mm,the horizontal displacement is 2.61 mm,and the additional inclination is 0.094‰.The influence of foundation pit construction on high-voltage pole and tower is controllable.The research conclusions have certain guidance and reference significance for similar engineering.
soft soil areadeep foundation pithigh-voltage pole and tower
NETL
NSTL
万方数据
