摘要
海上码头群桩基础桩位布置密集,沉桩施工受环境影响因素大、定位易产生偏差、存在一定的碰桩风险。在设计过程中,往往为预留沉桩施工作业空间须进行桩体距离验算。以往采用的桩间距计算方法均有一定局限性,不能快速、准确地计算出桩基础中空间最短间距及产生位置,为桩身间距核算带来了困扰。通过解析几何的方法,研发出遍历法与线性盒约束法两套数学模型,可依据设计桩参数快速计算两桩之间最短间距以及产生最短间距的位置。为保障沉桩施工过程中桩体安全,利用该桩间距算法对含有各类桩型的群桩基础进行计算,结果精准、应用效果良好。
The pile position of pile group foundation in offshore wharf is densely arranged,so the pile sinking construction is greatly affected by environmental factors,the positioning is prone to deviation,and there is a certain risk of pile collision.In the design process,it is often necessary to check the distance between piles to reserve the working space for pile driving.The pile spacing calculation methods used in the past have certain limitations,and cannot quickly and accurately calculate the shortest space spacing and the generation position in the pile foundation,which brings difficulties to the calculation of the pile body spacing.Through the analytical geometry method,two sets of mathematical models,the ergodic method and the linear boXconstraint method,are developed,which can quickly calculate the shortest distance between two piles and the position where the shortest distance occurs according to the design pile parameters.To ensure the safety of the pile body during the pile driving process,these pile spacing algorithms are used to calculate the pile group foundation with various types of piles,and the results are accurate and the application effect is good.
作者
黄家坪
HUANG Jia-ping(CCCC TDC Yantai Environmental Protection Dredging Co.,Ltd.,Yantai 264000,China)
出处
《水运工程》
北大核心
2022年第S02期99-102,共4页
Port & Waterway Engineering
关键词
群桩基础
海上沉桩施工
碰桩验算
数学模型
pile group foundation
offshore pile sinking construction
pile collision checking calculation
mathematical model
