振动沉管挤密砂桩施工技术

Construction Technology of Vibration Sinking Compaction Sand Piles

振动沉管挤密砂桩凭借造价低廉、无污染等优点,被广泛应用于软黏土、淤泥质土以及松散砂性土的地基处理中。以揭阳潮汕机场地基处理工程为例,结合地质情况,介绍排水固结法在地基处理中的应用。详细阐述振动沉管挤密砂桩的施工原理、施工工艺、质量控制和质量通病防治。结果表明,该方法可有效处理淤泥和淤泥质土等软弱地基,减少沉降。

The vibration sinking compaction sand piles are widely adopted in foundation treatment of soft clay,mucky soil and loose sandy soil,due to the characteristics of low cost and less pollution.Taking the foundation treatment of Chaoshan Airport in Jieyang as example,the drainage consolidation method is applied during the process of foundation treatment.Besides,construction principles,construction technology,quality control and prevention of common quality problem are outlined.The results show that this method can be used to the treatment of soft foundation such as silt and mucky soil,which can decrease settlement.