双排桩扶壁式挡土墙在陡坡路堤边坡中的应用

Application of Double-row Pile Counterfort Retaining Wall in Steep Embankment Slope

摘要:

对于高陡、周边环境复杂的路堤边坡，常规的桩基托梁重力式挡土墙已经难以满足工程需要。为了改进该支护结构的不足，提出了一种新型的支护结构——双排桩扶壁式挡土墙，并结合其在深圳市某山区道路高填方边坡工程中的应用，重点介绍了计算、设计和施工等问题。从实际应用效果来看，双排桩扶壁式挡土墙极大地节省了边坡用地，变形控制效果较好，可为类似受周边环境限制、填方高度较大的路堤边坡工程提供参考。

Abstract:

For the high and steep embankment slope with complex surrounding environment, the conventional gravity retaining wall on supported beams of pile foundation has been difficult to meet the engineering needs. In order to improve the shortcomings of the support structure, a new type of support structure - double-row pile counterfort retaining wall is proposed. Based on its application in high-filled steep embankment slope project of a mountainous road in Shenzhen, the calculation, design and construction are specially introduced. From the practical application effect, the double-row pile counterfort retaining wall can greatly save the slope land, and the deformation control effect is better, which can provide reference for similar high-filled embankment slope projects restricted by the surrounding environment.