泰州大桥南锚沉井基础侧壁土压力监测研究

Study of Monitoring of the Earth Pressure of South Anchorage Foundation of Taizhou Changjiang River Highway Bridge

以泰州长江大桥南锚沉井基础为研究对象,对南锚沉井基础侧壁土压力进行了实时监测。根据大量现场实测资料,结合沉井下沉曲线和下沉施工工艺,系统分析沉井侧壁土压力的大小和变化规律,得出了侧壁土压力分布是非线性的;并会随着下沉深度呈现先增加后减小的趋势,以及对这种分布规律的原因进行了探讨。

The earth pressure of Changjiang River Highway Bridge has sinking curve and open caisson sinking south anchorage foundation under south anchorage foundation of Taizhou been monitored. According to the observed field data, and combined with construction technology, the size and variation law of the earth pressure are systematically studied. The result is that the earth pressure distribution is nonlinear and the trend of first increases and then decreases with the sinking depth. The reasons of this distribution pattern has discussed.