北京水务Issue(5)：80-84,5.DOI:10.19671/j.1673-4637.2025.05.014
地下排桩技术在永定河山峡段村庄防护方案设计中的应用
Application of underground pile displacement technology in design of village protection program for Yongding River Mountain Section
高泽超 1张育辉 1马慧娟 1石文1
作者信息
- 1. 北京市水利规划设计研究院 北京 100048
- 折叠
摘要
Abstract
Aiming at the issue that the damage proportion of traditional bank protection reached as high as 78％in Shuiyuzui Village of the mountain section of the Yongding River after the"23·7"flood,a composite structure of"bored cast-in-situ piles+cantilever retaining wall"was constructed to improve the anti-scour capacity and adapt to the limited space conditions.Based on the 20-year return period flood discharge of 2 740 m3/s,the maximum scour depth was calculated to be 4.3 m.Combined with code verification and tool software checking,the pile length was determined to be 16 m with an embedded depth of ≥ 11.7 m,and reinforced gabions were adopted for protection.The results showed that the anti-scour flow velocity of the structure reached more than 5.0-8.0 m/s.The overall stability safety factor was 1.902,the anti-sliding factor was 1.986,and the embedded depth factor was 2.918.All these indicators met the code requirements.This composite structure provided a feasible technical path for the protection of mountain rivers in limited space.关键词
钻孔灌注桩/悬臂挡墙/钢筋石笼/永定河Key words
bored piles/cantilevered retaining walls/rock-filled steel cage/Yongding River分类
建筑与水利引用本文复制引用
高泽超,张育辉,马慧娟,石文..地下排桩技术在永定河山峡段村庄防护方案设计中的应用[J].北京水务,2025,(5):80-84,5.
