广东科学中心饱和淤泥质砂土地基预处理技术的研究与应用

结合正在建设中的广东省重点工程——广东科学中心,针对饱和淤泥质砂土地基存在的工程地质隐患等问题,详细分析该建筑场地对地基的要求,提出动静结合排水固结法处理地基.在进行动力排水固结的现场试验的基础上,采用地基预处理技术处理广东科学中心近38.7万m2的饱和淤泥质砂土地基,并探讨了该新技术的加固机理、设计方法及施工技术等.通过现场监测与检测,结合饱和软土微结构定量研究试验,证明该技术处理饱和软土地基具有良好的效果,可供同类工程参考、借鉴.

Research and application of saturated silt sandy soil ground prevention technique in Guangdong Science Center

For the building important project of Guangdong,Guangdong Science Center,we aim at the problem of engineering geologic hidden trouble in saturated silt sandy soil ground.The foundation request of construction ground is analyzed in detail and the dynamic consolidation method is pointed to treat ground.Based on the field test of consolidation method,the ground prevention technique to reinforce 387 000 m2 soft foundation is adopted.The reinforcing mechanism,design method and construction technique and others are discussed.Through the data analysis of test,experiment and the research of saturated soft soil micro-structure quantitative,we show that it is marked to treat saturated silt sandy soil ground by this technique.The research results provide valuable references for similar engineering.