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砂井俗称砂袋桩,是近年来迅速发展起来的一种软基处理新工艺,在港口建设、公路路基改善等工程中,均收到了良好的经济效益。然而作为住宅楼基础,砂井的应用并不多见。由于住宅楼多建在市区,有些是在原来旧房基础上改建的,地表一般比较坚硬,与大面积软弱地基上的砂井施工相比,在工艺上有许多差异。下面把笔者在渤海石油公司地调8号住宅楼砂井基础中的施工经验,作一简单介绍。一、地质概况该住宅楼位于天津市塘沽区,所在的位置原是一片平房,地表下0～-0.5m为素填土,经多年自然压突,已形成一层坚硬的板
Sand wells, commonly known as sandbag piles, are a kind of soft foundation treatment technology that has been rapidly developed in recent years. They have received good economic benefits in port construction and road subgrade improvement projects. However, the application of sand wells is rare as a foundation for residential buildings. As residential buildings are built in urban areas, some of them are rebuilt on the basis of the original ones, and the surface is generally hard. Compared with the construction of sand wells on a large area of soft ground, there are many differences in the process. The author will briefly introduce the construction experience of the sand well foundation of No.8 residential building in Bohai Oil Company. I. Geological Overview The residential building is located in Tanggu District, Tianjin, where it was originally a cottage, 0 ~ -0.5m under the surface for plain fill, after many years of natural pressure, has formed a layer of hard board