拓宽路基差异沉降防治技术研究

Study on different settlement preventing techniques of widening subgrade

基于国内学者对高速公路拓宽改建工程的研究成果,探讨了拓宽改建工程中遇到的差异沉降问题,从边坡削坡、开挖台阶、使用轻型填料、使用土石合成材料等方面,阐述了旧路拓宽改建工程中路基沉降控制措施,以保证公路路基的稳定性。

Based on domestic scholarsJ research achievements for highway widening transformation engineering, the paper explores differential settlement causes of widening transformation engineering. Starting from aspects of slope cutting broken, excavation step, using light-style filling, using rock-soil compound material, it describes subgrade settlement control measures of old road widening transformation engineering, with a view to guarantee the highway subgrade stability.