论文部分内容阅读
1工程概况大洪河前刘寨险工段位于大洪河与淮河人口处,该段呈“C”型弯曲,中心角约220°,曲率半径300m左右,由于弯道环流和凹岸顶冲水流冲刷作用,岸坡陡直,而且自上游至下游越来越陡。在75+533～75+726段岸坡坡度在1∶1．5以内,最陡处达1∶0．9。是河南省一处较难治理的险工。2设计情况由于岸坡陡,大量削坡会影响堤防和堤顶居民安全,设计单位比选挡土墙、板桩墙、模袋混凝土3种方案后,确定采用板桩墙护岸方案。设计预制钢筋混凝土板桩截面尺寸65cm×
1 Project Overview Before the Dahong River Liuzhai work section is located in the population of the Great Honghe and Huaihe River, the section was “C” -shaped bend, the center angle of about 220 °, the radius of curvature of about 300m, due to the curved loop flow and concave flushing top stream Scouring effect, steep slope, but also from the upstream to downstream more and more steep. In the slope of 75 + 533 ~ 75 + 726 section slope within 1: 1.5, the steepest reached 1: 0.9. Henan Province, a more difficult to manage the risk workers. 2 Design Situation Due to the steep slope, a large number of slope cutting will affect the safety of dikes and dike residents. After the design units choose the three options of retaining wall, sheet pile wall and bagging concrete, the plan of retaining wall by sheet pile wall is determined. Design precast reinforced concrete sheet pile section size 65cm ×