挤密砂桩加固高速公路软基的现场试验研究

Field Experimental Study of Strengthening Expressway Soft Foundation by Compaction Sand Piles

通过在广贺高速公路北江特大桥桥头设置软基试验段,对挤密砂桩加固软基处理进行标贯、静力触探和监测等试验,对挤密砂桩抗砂土液化和加固效果方面进行研究,根据得出的数据进行分析,总结了挤密砂桩在处理砂土液化及软土地基处理方面的一些主要效果及特点。

By setting test section along GuangHe expressway from the end of the North River oversized bridge, standard penetration test, static cone penetration test and monitoring experiment are applied to study the reinforcement and anti-liquescence effect of the compaction sand piles used to strengthen the soft foundation. And according to these data of experiments, some of the main effects and characters of the treatment are summarized, which will provide some guidance for construction.