塑料排水板联合堆载法在Mirsarai护岸工程中的应用  

Application of plastic drainage board combined with surcharge method in revetment project of Mirsarai

作　　者：舒志明 聂坤超 王航 SHU Zhi-ming;NIE Kun-chao;WANG Hang(CCCC-TDC Binhai Environment Channel Dredging Co.,Ltd.,Tianjin 300450,China)

机构地区：[1]中交天航滨海环保浚航工程有限公司,天津300450

出　　处：《水运工程》2020年第S01期159-163,共5页Port & Waterway Engineering

摘　　要：针对孟加拉Mirsarai护岸工程的沿海软土地基,采用排水板软基固结沉降法进行处理,对塑料排水板材料特性、堆载方案、施工质量控制要点、施工存在的问题进行分析。基于排水板打设后堆载过程及满荷后沉降量随时间变化的监测数据,利用双曲线、Asaoka、指数函数法等固结沉降模型进行拟合,预测地基沉降趋势,得出最终沉降量。结果表明,3种方法的拟合度均较高,预测出3个里程的最终沉降量分别为161.04、381.68、369.80 mm。Aiming at the coastal soft soil foundation in revetment project of Mirsarai,Bangladesh,we apply the drainage plate soft foundation consolidation settlement method for processing,analyze the material characteristics of plastic drainage plate,surcharge plan,control points of construction quality,construction problems.Based on the monitoring data of the drainage process after setting drainage board and the variation of the settlement after full load,we use three consolidation settlement models such as Hyperbolic equation,Asaoka equation and exponential function equation to simulate the settlement data,predict the settlement trend of the foundation,and obtain the final settlement.The results show that the fitting degrees of the three methods are high,and the final settlements of the three mileages are 161.04 mm,381.68 mm and 369.80 mm respectively.

关 键 词：软土地基 固结沉降 沉降趋势 最终沉降量 

分 类 号：U655.54[交通运输工程—港口、海岸及近海工程]