济南黄河隧道北岸始发井基坑变形监测分析

Analysis on Deformation Monitoring Results of the North Shore Starting Well Foundation Pit of Yellow River Tunnel in Ji’nan

以济南黄河隧道北岸始发井为依托,简要介绍了该基坑的围护结构形式和变形监测方案,依托现场实测数据,重点对支护桩(墙)顶水平位移、深层水平位移和混凝土支撑轴力等参数的变化规律展开分析。结果表明,基坑南侧支护桩(墙)顶水平位移量和深层水平位移量明显大于基坑东、西两侧;南侧墙体基本向基坑内侧移动,而东、西两侧墙体整体向基坑外侧移动。

Based on the starting well on the north bank of the Yellow River Tunnel in Jinan,this paper briefly introduces the enclosure structure form and deformation monitoring scheme of the foundation pit.The change lawof parameters such as support axial force is analyzed.The results show that the top horizontal displacement and deep horizontal displacement of the supporting piles(walls)on the south side of the foundation pit are significantly larger than those on the east and west sides of the foundation pit;The whole body moves to the outside of the foundation pit.