摘要
为了更好地改善国内沿海和内河地区的软土地基,解决水上建筑物的稳定问题,采用挤密砂桩对软土地基进行人工处理的方法在近年得到广泛应用。挤密砂桩KS-REACT工法是在振动作用下,通过控制套管内空气压力实现砂桩挤密扩径。该方法在港珠澳大桥人工岛软基处理中得到应用,具有成桩质量高、地基加固快、砂损失率低等特点。针对施工中出现的问题给予了合理解决,为今后挤密砂桩施工提供了宝贵建议。
For improving the soft soil foundation of domestic coastal and inland areas and guarantee the stability of over-water buildings,the sand compaction pile of artificial processing methods of soft soil foundation is widely used in recent years.The sand compaction pile by KS-REACT’s method is that under the action of vibration,the sand pile is expanded in diameter through controlling the air pressure inside the pipe.The application of this method to the soft foundation treatment in the Hong Kong-Zhuhai-Macao bridge resulted in perfect pile quality,fast foundation reinforcement,and low sand loss rate.The measures taken for dealing with the problems in construction provide valuable reference for the compaction pile constructions in the future.
出处
《水运工程》
北大核心
2012年第11期184-190,共7页
Port & Waterway Engineering
关键词
挤密砂桩
软土地基
KS-REACT
港珠澳大桥
地基加固
sand compaction pile
soft soil foundation
KS-REACT
Hong Kong-Zhuhai-Macao bridge
foundation reinforcement
