8000kN·m能级强夯处理填土地基有效加固深度试验

Test on effective reinforcement depth of filled foundation improved with 8000 kN·m high energy level dynamic compaction

针对某工程高填方地基,采用8 000 k N·m高能级强夯处理填土地基,通过静力触探试验、动力触探试验、探井、浅层平板载荷试验,评价8 000 k N·m能级强夯处理填土地基的加固效果,得出强夯的有效加固深度为10.0 m,并根据强夯有效加固深度实测结果,提出基于梅拉公式计算结果的修正系数为0.353,其结果可为类似工程提供设计及施工参考。

This paper uses the high energy dynamic compaction with energy of 8 000 kN·m for a project of thehigh-filled foundation. The reinforcement effect of filled foundations strengthening with the high energy dynamiccompaction method of energy 8 000 kN·m is evaluated through the static cone penetration test, dynamic conepenetration test, well excavation and plate loading test. The effective reinforcement depth of this dynamic compactionconstruction is improved. Based on the measured value of the effective reinforcement depth of dynamic compaction,the correction coefficient 0.0353 is putted forward according to Menard formula. The research results willprovide certain reference value for the similar projects.