直排直连真空联合水袋预压法在软基处理中的创新性应用

针对直排真空预压联合堆载传统堆载料能耗高、生态环境被破坏及污染隐患、成本较高、堆载料运输受限、施工工期较长等问题，采用直排真空预压联合水袋堆载法进行监测检测试验，使得实测总沉降量、残余沉降量、固结度、沉降速率、孔隙水压力等指标均满足设计技术要求。结果表明：真空预压联合水袋堆载施工工艺简单便捷、绿色环保、性能安全可靠、施工工期较短、成本较低，取得了良好的经济和社会效益，对于促进软基处理领域发展进步有重要的意义和价值。

Innovative application of direct drainage and direct connection vacuum combined with water bag preloading in soft foundation treatment

The traditional stacking materials with direct drainage vacuum preloading face the problems of high energy consumption, ecological environment damage and potential pollution, high costs, limited transportation of stacking materials, and a long construction period. To solve these problems, this paper adopts the method of direct drainage vacuum preloading combined with water bag stacking for the monitoring and detection tests on site. The measured total settlement, residual settlement, degree of consolidation, settlement rate, pore water pressure, and other indicators meet the design requirements. The results show that vacuum preloading combined with water bag stacking has the advantages of simple construction processes, environmental protection, safe and reliable performance, a short construction period, and low costs. It has achieved good economic and social benefits, which is of great significance and value for promoting the development and progress of soft foundation treatment.