营口机场饱和软土道基强夯置换法技术研究

Research on Dynamic Compaction Replacement Technology for Saturated Soft Soil Roadbed of Yingkou Airport

机场场道对道基沉降及不均匀沉降要求高,尤其在我国沿海饱和软土分布地区,在满足工程质量、工期、经济性前提下,有效地处理好软土地基显得尤为重要。国内外工程领域常见的饱和软弱土地基处理有强夯置换法、排水固结法、深基础等方法,根据营口机场软弱粘土地质条件,采取强夯置换法工艺进行地基处理,对地基处理监测资料进行分析,介绍了强夯置换法处理软弱土地基的处理方案和应用效果,为国内滨海饱和软土分布区地基加固积累一定经验。

The airport runway has high requirements on the settlement and uneven settlement of roadbed, especially in the coastal saturated soft soil distribution area of China. It is particularly important to effectively deal with soft soil foundation on the premise of meeting the requirement of project quality, construction period and economical efficiency. The common treatment methods of saturated soft soil foundation in the engineering field at home and abroad include dynamic compaction replacement method, drainage consolidation method and deep foundation and so on. According to the geological conditions of soft clay at Yingkou Airport, the foundation treatment process with dynamic compaction replacement method is applied. By analyzing the monitoring data of foundation treatment, the treatment scheme and application effect of dynamic compaction replacement method for soft soil foundation are elaborated, so as to accumulate some experience for the foundation reinforcement in the distribution area of domestic coastal saturated soft soil.