论文部分内容阅读
在洞庭湖区防洪大堤洪水溃口堵复工程中，针对填筑土含沙率与含水率高以及工期限制等实际情况，运用系统工程的原理和方法进行综合处理：利用大型挖泥船吹填大堤基础，解决水下基础施工困难和土方量大的问题；对吹填的砂质基础采取简易的排水措施，加速堤基的干燥固结；堤身进行填充式灌浆，使土体密实；大堤迎洪面大面积铺设复合土工膜作防渗处理，降低浸润线，增强大堤稳定性；采用混凝土预制块护坡防冲刷防渗等复合技术，溃口堵复后的新堤经汛期高洪水位检验，取得了良好的防渗加固效果。
In the Dongting Lake Flood Control Embankment flood damage embankment plugging project, according to the filling of soil sand content and high moisture content and duration of the actual situation, the use of systems engineering principles and methods for comprehensive treatment: the use of large dredger dredging embankment foundation , To solve the problems of underwater foundation construction and large amount of earthwork; to adopt simple drainage measures on the sand-filled sand foundation to accelerate the drying and consolidation of embankment; filling grouting in the bank body to make the soil compact; Large area of the laying of composite geomembrane for anti-seepage treatment to reduce the infiltration line to enhance the stability of the embankment; using concrete prefabricated block slope anti-scouring and other composite technology, after the breach of closure of the new embankment by the flood season high flood test, and achieved good Impermeable reinforcement effect.