砂、卵石地质条件下沉井施工技术的应用——以遂宁某污水厂进水泵房施工为例

Application of Open Caisson Construction Technology under Sand and Pebble Geological Conditions

摘要:

沉井以其整体性强、结构稳定性好、适用土质范围广等特点,对于一些较大埋深的泵井构筑物,是一种较常用的施工方法。论文通过遂宁某污水厂进水泵房工程沉井施工实例,详细阐述了在砂、卵石地质条件下,通过分析地质、水文特点,选用沉井排水下沉与不排水下沉相结合的施工方案顺利完成该项目建设的整个施工流程,希望为类似工程提供借鉴和参考。

Abstract:

Open caisson is a common construction method for some pump well structures with the large buried depth because of its strong integrity, good structural stability and wide range of applicable soil. Taking the construction of open caisson in the influent pumping house project of a wastewater treatment plant (WWTP) in Suining City as an example, the whole construction process of this project is expounded in detail under the geological conditions of sand and pebbles, through the analysis of geological and hydrological characteristics. The construction scheme of combining that the open caisson is sunk by drainage and without drainage is selected to smoothly completed, which can be referred for the similar projects.