港口抛填地基碎石注浆桩加固有限元分析  

FEM Analysis of Crushed Stone Grouting Pile in Port With Filling Foundation

作　　者：李健 邱红胜[2] 赵建国 熊志军 

机构地区：[1]中国市政工程西南设计研究总院,四川成都610081 [2]武汉理工大学交通学院,湖北武汉430063 [3]武警湖北总队,湖北武汉430073

出　　处：《土木工程与管理学报》2012年第3期17-21,共5页Journal of Civil Engineering and Management

基　　金：国家自然科学基金(50978112)

摘　　要：在港口抛填地基采用板式基础是一种可行方案,当设计荷载较大时,单纯提高基础尺寸并不一定经济。提出应用碎石注浆桩进行地基土体处理,以提高地基承载力从而避免基础尺寸过大。结合深圳妈湾港"油改电"高塔基础工程,应用有限元模拟地基承载力荷载试验,综合确定天然地基以及加固后复合地基的承载力,并分析了桩径、桩数、桩土相互作用等因素对复合地基承载力的影响。In recent years, slab foundation is a viable program to treat in the port with filling （riprap） However, just the improve the basic size does not necessarily economic when the design load is large. The Crushed Stone Grouting Pile foundation soil treatment, to improve the bearing capacity of foundation in order to avoid the basis of size is too large. Taking the foundation project of Shenzhen Mawan port for example, the static load test for bearing capacity was simulated by finite element method to determine bearing capacity of the natural foundation and crushed stone grouting pile composite foundation. Besides, the thesis also analyzed the impact of number of piles, pile diameter, pile-soil interactions on the bearing capacity of crushed stone grouting pile composite foundation.

关 键 词：碎石注浆桩 抛填地基 有限元分析 

分 类 号：TU472.32[建筑科学—结构工程]