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１ 施工概况 本次筑堤施工属于永定河滞洪水库工程马厂水库第１９标段。分布于永立桥上下游两侧， 位于永定河河道中部，全长８２０６５４ ｍ，筑堤土方量４６万ｍ３。堤顶宽度７５ ｍ；两侧边坡均为 １∶４５；筑堤土料全部取自库区，土质为细砂。筑堤施工自２００
1 Construction Overview This embankment construction belongs to No. 19 section of Ma Chang Reservoir of Yongding River detention flood reservoir project. Located in the upper and lower reaches of Yong Li Bridge on both sides, located in the middle of the Yongding River, a total length of 820 654 m, embankment earthwork capacity of 460,000 m3. The width of dike top is 75 m; both side slopes are 1: 45; all embankment materials are taken from the reservoir area and soil is fine sand. Embankment construction since 200