摘要
水闸被广泛应用在水利工程中,地质条件是水闸建设成败的一项重要因素,地质条件千差万别决定了地基处理的复杂多样。本文以引黄入冀补淀工程老渠村涵闸为背景,根据地质条件,计算了单桩竖向承载力、复合地基承载力,确定了桩长、桩径及桩间距。经过对地基处理方案比较,确定涵闸基础采用预应力混凝土管桩(PHC桩)与水泥搅拌桩联合处理方法,可以达到良好效果。实践表明:PHC桩与水泥搅拌桩联合处理方法,有施工便捷、安全可靠及经济实用等优点,具有一定的推广价值,可供类似工程参考。
Sluices are widely used in water conservancy projects.Geological condition is an important factor for the success of sluice construction.The complexity and diversity of foundation treatment are determined by various geological conditions.Laoqu Village sluice gate in Yellow River-Hebei Diversion Baiyangdian Supplementing Project is regarded as the background in the paper.The vertical bearing capacity of single pile and bearing capacity of the composite foundation are calculated,and the pile length,pile diameter and pile spacing are determined based on the geological conditions.It is determined that the combined treatment method of prestressed concrete pipe pile(PHC pile)and cement mixing pile can be adopted in the sluice gate foundation with excellent effect through comparing the foundation treatment schemes.The practice shows that the combined treatment method of PHC piles and cement mixing piles has the advantages of convenient,safe and reliable construction,high economical and practical performance,etc.It hascertain value of popularization,thereby providing technical reference for similar projects.
作者
蒋爱辞
戴菊英
JIANG Aici;DAI Juying(Yellow River Survey,Planning,Design and Research Institute Co.,Ltd.,Zhengzhou 450003,China;Henan Engineering Research Center of Urban Water Resources and Environment,Zhengzhou 450003,China)
出处
《水利建设与管理》
2021年第12期37-41,共5页
Water Conservancy Construction and Management
关键词
预应力混凝土管桩
水泥搅拌桩
地基处理
承载力计算
联合处理方法
prestressed concrete pipe pile
cement mixing pile
foundation treatment
bearing capacity calculation
combined treatment method
