关于沈海高速公路拓宽工程的数值模拟研究

Numerical simulation study on road widening of Shen-Hai highway

本文依托沈海高速公路泉厦段扩建工程,通过数值模拟分析公路扩建工程中新旧路基之间产生的差异沉降,得出直观清晰的模拟计算数据和图形。结果表明:在新路基产生的附加应力作用下,新旧路基存在差异沉降,需进行设计处理,以避免产生病害。同时,在新旧路基结合部,存在较大附加应力,需进行处理,以确保路基的稳定。

In this article, relying on the road widening of Shen--hai Highway in Quanzhou and Xiamen, the differential settlement between the new --built and original subgrade is analysed according to the results of numerical simulation, and the calculation data and visual graphics are obtained. The results show that differential settlement exists under the effect of new--built subgrade＇ s additional stress, which should be designed and treated to avoid diseases. And in the connection of new--built and original subgrade the additional stress is larger, which also should be treated to keep the subgrade stable.