摘要
近几年来,滨海县振东闸以北段主海堤抛石护脚受潮水波浪冲刷形成陡坡,严重影响主海堤安全,亟须加强堤脚防护。在水毁修复工程中堤脚防护按照坡面防护设计,根据现状波浪要素计算护脚块石重量。本文结合波浪断面物理模型试验和扭王字块现场摆放试验,确定堤脚采用600kg扭王字块结合250kg抛石的防护型式。实践证明该防护方案是可行有效的,且单层扭王字块双向嵌固安装整体稳定性优于单向嵌固型式,可为类似海堤工程提供参考。
The main seawall riprap foot protection in the north section of Zhendong Gate in Binhai County forms a steep slope by tidal wave erosion in recent years,thereby seriously affecting the safety of main seawall.It is urgent to strengthen the embankment foot protection.The weight of the embankment block stone is calculated according to current wave elements in the flood damage repair project according to the slope protection design.The physical model test of wave section and field placement test of accoropode are combined in the paper to determine the protection model of 600kg accoropode combined with 250kg riprap.The practice proves that the protection scheme is feasible and effective,and the overall stability of bidirectional embedment installation of single-layer accoropode is better than that of unidirectional embedment,thereby providing reference for similar seawall projects.
作者
李连成
LI Liancheng(Yancheng Water Conservancy Survey and Design Institute Co.,Ltd.,Yancheng 224002,China)
出处
《水利建设与管理》
2022年第7期29-33,42,共6页
Water Conservancy Construction and Management
关键词
扭王字块
堤脚防护
抛置密度
安装方式
accoropode
embankment foot protection
drop density
installation mode
