上海虹桥机场塑料板排水固结法软土地基处理技术

Soft Foundation Treatment with Plastic Drainage Plate Method in Shanghai Hongqiao Airport

结合上海虹桥机场扩建工程软土地基处理,分析塑料板排水固结法的可行性,系统研究了其在软土地基中的应用方法。通过对比计算论证了塑料板排水固结法在该地区的优势,并指出砂垫层铺设、塑料排水板施工、土方回填等施工技术措施。监测结果表明,塑料板排水固结法明显地改善了软土层的排水固结过程,技术可靠,经济合理,能够缩短工期,可以在软土地区推广。

Based on soft foundation treatment of extension project of Shanghai Hongqiao Airport, feasibility of plastic drainage plate in soil consolidation is analyzed, and its application method in soft foundation is researched. By contrasting.calculation, superiority of the plastic drainage plate used in soft foundation area is demonstrated. Furthermore, construction technologies are proposed, such as sand cushion construction, plastic drainage plate construction and soil backfilling. Monitoring results demonstrate that plastic drainage plate can improve drainage and consolidation process of soft soil obviously, and it has advantages of reliability, economy and short construction time.