用真空堆载联合预压法处理珠海天然气陆上终端地基

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作者单位:: 中国石油天然气第一建设公司, 河南洛阳 471023
CNPC No.1 Construction Company, Luoyang 471023, China

关键词:: 超软地基;真空堆载联合预压;沉降;固结
ultra-soft foundation;vacuum-surcharge preloading method;settlement;consolidation

摘要:: 珠海天然气陆上终端采用真空堆载联合预压法处理地基,费用较低,效果明显。文章根据该工程的地质条件,计算了设计荷载和预压荷载、塑料排水板的性能要求和布置间距等,并具体介绍了整个施工过程和检测方法。处理后的地基承载力由原来的45kPa提高至150kPa,满足了设计要求。
Commonly used methods for soft foundation treatment, such as piling and heavy tamping, have the disadvantage of high treatment cost. Zhuhai Natural Gas Land Terminal adopted vacuum- surcharge preloading method to treat foundations. It reduced cost and gained evident effects. Based on the geological conditions of the project, the design loads and preloads, performance requirement and deployment spaces of plastic drainage plates were calculated. The whole construction process and test methods were presented. The treated foundation bearing capacity increased from 45 kPa to 150 kPa and met design requirement.

2007,06(06): 30-32 收稿日期：2007-2-15

分类号：TU472.33

作者简介：张新周(1952-), 男, 河南新郑人, 工程师, 1988年毕业于洛阳职工科技学院, 现任中国石油天然气第一建设公司建筑分公司副总工程师.