某大型污水处理厂深基坑设计方案研究

为保证城市污水处理厂基坑的安全,该文先分析深基坑各种常见支护方案的特点和选择原则,并以某城市污水处理厂为研究对象,将其划分为A和B两个区域,分别制定“单排桩+预应力锚索+内支撑”“放坡+土钉墙”的支护方案,利用数值软件分析支护后基坑的稳定性和变形。同时,为防止深基坑突涌,制定降水方案,研究成果可供类似项目借鉴。

In order to ensure the safety of the foundation pit of the urban sewage treatment plant,the characteristics and selection principles of various common support schemes for the deep foundation pit are analyzed,and taking a municipal sewage treatment plant as the research object,it is divided into A and B areas.The support schemes of single-row pile+prestressed anchor cable+internal support and slope+soil nailing wall are established respectively,and the stability and deformation of the foundation pit after support are analyzed by numerical software.At the same time,in order to prevent the inrush of deep foundation pit,a dewatering scheme is made,and the research results can be used as a reference for similar projects.