河库清淤重难点分析及措施探究——以浙江省温岭市太湖水库环保清淤工程为例

Analysis and Research on the Problems of Dredging in Rivers and Reservoirs——Taking the Environmental Protection Dredging Project of Taihu Reservoir in Wenling as an Example

对目前一些常用的清淤设备(如挖泥船清淤、虹吸清淤以及绞吸式清淤等)、以及底泥处置技术(如自然脱水干燥法、真空预压排水固结法、土工管袋法、机械脱水法、搅拌固化法等)等进行了总结分析,对其优缺点、适用条件以及费用等进行了分析说明,为相关底泥处置提供参考。并通过典型清淤工程案例——浙江省温岭市太湖水库环保清淤工程进行了分析探讨,从工程设计角度,对该案例中清淤厚度设计值分区选择、底泥清淤开挖设计与清淤施工以及底泥处置等方面进行详细介绍,并对本案例清淤工程清淤效益进行评估分析,认为本案例实施清淤后其效益显著;为相关清淤工程提供技术参考及宝贵经验。

Some commonly equipment used dredging( such as dredger dredging,siphon dredging and dredge dredging,etc.),as well as sludge disposal technology( such as natural dehydration drying method,vacuum preloading drainage method,geotextile tube bag method,mechanical dewatering method,the mixing curing method and so on,has carried on the summary analysis to its advantage and disadvantage,the suitable condition and the expense and so on,has provided the reference for the related bottom mud disposal. And through the typical dredging project-environmental protection dredging project of Taihu Reservoir in Wenling,Zhejiang Province,from the aspect of engineering design,this paper introduces in detail the zoning selection of the design value of dredging thickness,the design of silt dredging and dredging and the disposal of sediment in this case,evaluates and analyzes the dredging effect of this case dredging project,it considered that the benefit of this case is remarkable,and provide technical reference and valuable experience for related dredging project.