桩基础在高填方区挡墙工程中的应用实例分析

The example analysis on application of pile foundation in retaining wall engineering of high filling area

在含有软弱地基、填方地基的挡墙工程中,由于填方地基承载力低,压缩性高,在挡墙设计及施工中,如果地基问题处理不当,挡墙会因地基承载力不足引起破坏。某项目地处丘陵岗地地貌,原始地形起伏较大,土方开挖整平形成填土边坡,预设置挡墙对边坡进行支挡防护。本文以该填方区挡墙工程实例为背景,综合挡墙形式、地基处理、基础形式进行比选,对桩基础在填方区挡墙工程中的应用进行了分析。

In retaining wall engineering of soft foundation and filled foundation,the filling foundation has low bearing capacity and high compressibility.Therefore,retaining walls are vulnerable to damage of weak foundation bearing capacity with insufficient attention to the foundation during design and construction of retaining wall.The example project is located in hilly land,and the original terrain fluctuates greatly.The soil was excavated and leveled to form the soil⁃filled slope,and a retaining wall was set up in advance to protect the slope.Taking the retaining wall project in the filling area as the example,This paper compared and selected the form of retaining wall,foundation treatment and foundation.The application of pile foundation in retaining wall engineering in filling area was also analyzed.