干振碎石桩处理高速铁路震动液化地基施工技术

CONSTRUCTION TECHNIQUE FOR TREATING VIBRATING LIQUEFIED FOUNDATION OF HIGH-SPEED RAILWAY LINE BY DRY VIBRATING CRUSHED STONE PILE

结合秦沈客运专线工程实际进行了干振碎石桩处理震动液化地基技术研究。分析了干振碎石桩复合地基抗液化机理,探讨了干振碎石桩施工工艺及质量控制方法,通过对桩身、桩间土及复合地基的检测,验证了干振碎石桩处理震动液化地基的可行性。

This technical study was made on treating vibrating liquefied foundation by dry crushed stone pile based on the project of Shengyang-Qinghuangdao Passenger Dedicated Railway Line. The mechanism against liquefaction on compound foundation by dry crushed stone pile was analyzed. The construction technique and method of quality control with dry crushed stone pile discussed. It shows it is feasible to treat vibrating liquefied foundation by dry crushed stone pile through test to pile body,soil between piles and compound foundation.