新郑高速公路位于黄河岸边,分布有大量的软弱地基,其主要成分为低液限粉土、低液限粘土、粉细砂至中砂。为了研究强夯碎石桩、深层搅拌桩、填土预压、压密注浆和沉管碎石桩对软弱地基力学行为的影响,特作试验路堤。随着路堤填土高度的增加,动态测试地基的应力和位移。通过软弱地基力学行为的分析,了解各种加固方法的适用性,指导设计和施工。 Xinzheng Expressway is located on the bank of the Yellow River with a large number of weak foundations. Its main components are low liquid limit silt, low liquid limit clay and silty sand to medium sand. In order to study the influence of strong compacted gravel pile, deep mixing pile, preloading of fill, compaction grouting and submerged gravel pile on the mechanical behavior of soft foundation, the special test embankment is made. As embankment fill height increases, the dynamic test of the foundation of the stress and displacement. Through the analysis of mechanical behavior of weak foundation, understand the applicability of various reinforcement methods to guide the design and construction.