旋喷桩复合地基在直立式防波堤结构中的应用  

Application of composite foundation of rotary jet pile in vertical breakwater structure

作　　者：李世强 周俊青 LI Shi-qiang;ZHOU Jun-qing(Dalian CCCC&DUT Institute of Communications Technology Co.,Ltd.,Dalian 116023,China)

机构地区：[1]大连中交理工交通技术研究院有限公司,辽宁大连116023

出　　处：《水运工程》2021年第10期376-381,共6页Port & Waterway Engineering

摘　　要：伴随经济社会的不断发展,国家对环保的要求愈加严格。港口工程中处理深厚软土地基传统上采用开挖换填方案,对周边环境影响较大。与传统方案相比,旋喷桩复合地基对原状土扰动程度低、对周边水质影响微弱、施工时占用海域面积少、对周边船舶通航影响较小。但是目前旋喷桩复合地基在新建直立式水工结构特别是防波堤结构中应用较少,且多采用块式满喷基础。介绍旋喷桩复合地基在大连獐子岛直立式防波堤中的应用,分析旋喷桩复合地基的结构特点和承载力,为旋喷桩复合地基在港口工程的应用提供参考。Along with the continuous development of the economy and society,the national requirements for environmental protection are becoming increasingly strict.The excavation replacement and filling scheme is traditionally used to deal with deep soft soil foundation in port engineering,which has a great influence on the surrounding environment.Compared with the traditional scheme,the composite foundation of rotary jet grouting pile has less disturbance to undisturbed soil,weaker influence on surrounding water quality,less sea area occupied during construction,and less influence on the navigation of surrounding ships.However,at present,the composite foundation of rotary jet grouting pile is seldom used in the new vertical hydraulic structure,especially in the breakwater structure,and the block full jet foundation is mostly used.This paper introduces the application of the composite foundation of rotary jet grouting pile in the vertical breakwater of the Dalian Zhangzi Island,analyzes the structural characteristics and bearing capacity of the composite foundation of rotary jet grouting pile,so as to provide reference for the application of the composite foundation of rotary jet grouted pile in port engineering.

关 键 词：旋喷桩 复合地基 格构基础 直立式防波堤 

分 类 号：U655.55[交通运输工程—港口、海岸及近海工程]