广东科学中心岩土工程问题及治理对策  

Geotechnical engineering problems and the countermeasures in Guangdong Science Center project

作　　者：张建林[1] 张季超[2] 刘晨[2] 朱超[2] 

机构地区：[1]广东科学中心,广州510006 [2]广州大学土木工程学院,广州510006

出　　处：《建筑结构》2010年第8期53-56,共4页Building Structure

基　　金：广东省科技计划项目(2004B10101048);(2005A11601014);(2006B37301009);建设部科技计划项目(2005-K1-48);(2006-K3-01);(2007-K3-09)

摘　　要：广东科学中心位处广州市东南,整体地势偏低,属河漫滩地貌。场地软土层厚度较大,淤泥含水量高,抗震性能差,渗透性较好。结合广东科学中心建筑工程,根据已有资料和工程实践,在场地处理总体构思方案中分析了存在的岩土工程问题,选择了最优的软土地基处理方案,提出了分区处理的方式,即在堆载预压区运用创新性的处理方法"吹砂填淤、填土挤淤",在动力排水固结区运用"少击多遍,逐级加能"的方法,通过现场试验证明该方法成功地解决了工程建设中存在的岩土工程问题,为主体工程施工提供了保证。The overall topography of Guangdong Science Center is low,and belongs to the flood landforms.The soft soil field is thick,the moisture content of silt is high.The seismic performance is bad,and the permeability is good.Based on the construction projects of GDSC and the strength of the domestically available data in geotechnical engineering,the analysis had been done about the main environmental geological engineering problems in foundation treatment scheme.The most excellent soft ground treatment program had been chosen.The method of partitioned treatment was developed and applied in the civil engineering,which the creative method is called ＂filling sand with dynamic compaction,filling soil with squeezing silt＂ in preloading area,and the other method is called ＂less hit but many times,step by step add energy level＂ in dynamic drainage consolidation area.It successfully solves the silt problems existing in the construction of GDSC though field tests,and offers protection to main construction.

关 键 词：岩土工程 分区 堆载预压 动力排水固结法 软土地基 处理 

分 类 号：TU411.92[建筑科学—岩土工程]