滨江道路软基处理设计及现场监测分析

SOFT FOUNDATION TREATMENT DESIGN AND FIELD MONITORING ANALYSIS OF A RIVERSIDE ROAD

滨江道路一般地基软土层分布深厚,在填土荷载和交通荷载作用下,易产生较大的沉降或不均匀沉降。为研究滨江道路的软基处理方法和处理效果,文中以某滨江道路工程为背景,从技术和经济角度比选了预应力混凝土管桩和水泥土搅拌桩方案,采用水泥土搅拌桩方案,并对水泥土搅拌桩复合地基进行了稳定性分析、沉降计算和现场监测。根据现场静载试验及沉降监测结果,水泥土搅拌桩复合地基承载力高,工后沉降小,满足工程要求,且建设工期短,工程造价合理,具有良好的工程效果和社会效益,可为类似滨江道路软基处理提供参考。

The soft soil of the riverside road is generally deep,and it is easy to produce large settlement or uneven settlement under the action of filling load and traffic load.A riverside road project is taken as the case to study the soft foundation treatment method and treatment effect of riverside road,in which the scheme of prestressed concrete pipe pile and cement soil mixing pile are compared and selected from the technical and economic point of view,and we adopts the scheme of cement soil mixing pile.The stability analysis,settlement calculation,and field monitoring of cement soil mixing pile composite foundation are carried out.According to the results of field static load test and settlement monitoring,the composite foundation of cement-soil mixing pile has high bearing capacity and small post-construction settlement,which meets the engineering requirements.The construction period is short and the project cost is reasonable,which has good engineering effectiveness and social benefit,providing the reference for similar soft foundation treatment of riverside roads.