超大断面矩形顶管掘进施工对周围土体扰动的分析研究

Analysis of Impact of Super Large Rectangular Pipe Jacking Construction on Soil Disturbance

作为一种地下非开挖技术,顶管法施工中,容易影响到管道周围土体原有的平衡,造成地面的沉降。结合郑州中州大道下穿顶管工程,对超大断面顶管掘进过程中周围土体的变化情况进行了监控,并根据现场监测结果,对超大断面顶管施工产生的周围土体变形特性进行了分析研究。

As a kind of underground trenchless technology, pipe jacking construction is inclined to influence theoriginal balance of soil around the pipe and results in ground settlement. Zhengzhou Zhongzhou Avenue Underpass Project was constructed by pipe jacking method. During its construction, the variation of soil around the super large pipe-jacking underpass was monitored. The deformation characteristics of soil were studied based on the monitoring results.