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北京地区高速公路地基处理主要针对局部存在的鱼塘、河沟、湿地、回填场地等特殊地段;对路桥相连部位桥头地基处理无针对性勘察报告,借用主桥的勘察资料会使地基处理设计针对性不强,加固效果不理想;目前的地基处理方法多是借鉴建筑工程中刚性桩、碎石桩、搅拌桩和强夯等方法以提高承载力为主,未深入考虑路基工程和建筑工程在结构上的不同特点及其在沉降控制上的差异;科学合理的公路地基处理监测方案对正确评价加固效果非常重要。
Beijing area highway foundation treatment mainly for the local areas such as fish ponds, river ditches, wetlands, backfill sites and other special sections; bridge abutment bridge abutment foundation to deal with the non-targeted survey report borrowing the main bridge survey data will make the design of foundation treatment Is not strong, the reinforcement effect is not ideal; the current foundation treatment methods are mostly used in construction projects rigid piles, gravel piles, mixing piles and dynamic compaction methods to improve the bearing capacity, did not thoroughly consider the subgrade construction and construction in the structure On the different characteristics and differences in settlement control; scientific and rational monitoring of road surface treatment programs to correctly evaluate the reinforcement effect is very important.