软土路基塑料排水板沉降分析

Settlement Analysis of Plastic Drainage Board in Soft Soil Roadbed

因道路工程软土路基设计主要以工后沉降为控制指标,在采用堆载预压塑料排水板进行软基处理设计时,对于提前估算沉降量和工后沉降量,规范没有给出明确规定;同时对于堆载预压或超载预压的载荷量亦没有明确规定。该文通过一例东莞市软土路基处理工程的设计实践,探索了堆载预压塑料排水板排水固结法处理软土路基沉降的设计计算方法,并通过实际监测数据来进行验证,对类似软土路基处理工程设计起到重要的借鉴意义。

Due to the fact that the design of soft soil subgrade in road engineering mainly focuses on post construction settlement as the control index,there is no clear provision in the specifications for estimating settlement and post construction settlement in advance when using preloaded plastic drainage boards for soft foundation treatment design;At the same time,there is no clear regulation on the amount of load for surcharge preloading or overload preloading;This article explores the design and calculation method of preloading plastic drainage plate drainage consolidation method for treating soft soil roadbed through a design practice of a soft soil roadbed treatment project in Dongguan City,and verifies it through actual monitoring data,which plays an important reference significance for the design of similar soft soil roadbed treatment projects.