水泥土搅拌桩复合地基优化设计探讨  

Optimal Design for Composite Ground of Mixed Soil-Cement Pile Research

作　　者：苏阳[1] 曾克强 陈孟芝 

机构地区：[1]桂林工学院勘察设计研究院,广西桂林541004 [2]桂林市建筑设计研究院,广西桂林541002

出　　处：《城市勘测》2006年第6期70-73,共4页Urban Geotechnical Investigation & Surveying

摘　　要：深层搅拌形成的水泥土桩体,有其固有的荷载传递规律,其变形、破坏特征与钢筋混凝土桩有很大的差异,传统的确定混凝土桩承载力的方法,已难以准确地确定水泥土桩的承载力。同时,采用单桩载荷试验与复合地基载荷试验,对水泥土桩的受力变形的影响亦不完全相同,造成评价的结果亦有很大出入。探讨并优化复合地基的设计方法,利于提高设计水平,以有效的节约工程造价,提高整体经济效益。本文结合工程实例,详细介绍了水泥土搅拌桩的设计过程,并对基础平面尺寸及桩长的优化设计进行了探讨,供参考使用。Deep stirred cement-soil pile, which has its intrinsic load transferring pattern, is quite different from steel-concrete pile in the aspect of deformation and destruction. Traditional method of determining bearing capacity of steel-concrete pile can not be used for cement-soil pile. Meanwhile, load test of composite foundation is different from load test of single pile in the aspect of deformation impact on cement-soil pile, which may result in great difference of assessment, The study on optimal design for composite foundation of stirred cement-soil pile is useful for improving design and reducing project cost. The design process of stirred cement-soil pile is introduced in detail and engineering cases are provided. Also the optimal design for pile length and foundation size is discussed.

关 键 词：水泥搅拌法 作用机理 优化设计 施工实例 

分 类 号：TU462[建筑科学—结构工程]