塑料排水板堆载预压在广州沿海工程软基处理中的应用

摘要:

本工程以广州南沙区横沥岛尖项目为例，采用适用性较好的塑料排水板堆载预压作为大面积软弱地基处理的推荐方案，并对其进行优化设计；采用理正岩土进行塑料排水板堆载预压进行固结验算；并对软基处理结束后堤防深层抗滑整体稳定进行计算。计算结果表明：堆载期，沉降较大，最大为1.87m；堆载期结束后，堤防深层抗滑稳定验算满足规范要求。因此，本工程塑料排水板堆载预压效果较好，达到设计意图。

Abstract:

This project takes the Hengli Island Tip Project in Nansha District, Guangzhou as an example. The plastic drainage plate with good applicability is used as the recommended plan for the treatment of large-scale weak foundations, and the optimization design is carried out. Consolidation check calculation; and calculate the overall stability of the deep anti-slip of the embankment after the soft foundation treatment is completed. The calculation results show that: during the heap loading period, the settlement is relatively large, the maximum is 1.87m; after the heap loading period, the anti-slip stability check calculation of the deep embankment meets the requirements of the specification. Therefore, the engineering plastic drainage board has a better stacking preloading effect and achieves the design intent.