在现场原位测试与长期监测条件下,针对高速公路深厚软基的不同地基处理方案,讨论复合模量同桩土应力比之间的关系。通过对现场试验和监测数据的研究分析,阐述复合地基的复合模量和强度都不是两种材料的变形模量和强度按一定几何比例的简单叠加、两种材料变形模量比值也不能反映复合地基桩间土的应力分配等观点。 Under the conditions of on-site testing and long-term monitoring, the relationship between the composite modulus and the stress ratio of the pile and soil is discussed in terms of different foundation treatment schemes for the deep soft ground of expressway. Through the field test and monitoring data analysis, the complex modulus and strength of the composite foundation are not simply the superposition of deformation modulus and strength of the two materials by a certain geometric ratio, the ratio of the modulus of deformation of the two materials can not reflect the composite Foundation piles of soil between the stress distribution point of view.