夯扩挤密水泥土桩在处理湿陷性黄土地区高层建筑地基中的应用
摘要:介绍了湿陷性黄土的特点及其处理方法,并着重介绍了夯扩挤密桩的概念、发展历史及其适用条件。重点论述了夯扩挤密水泥土桩的侧向挤密对消除湿陷性的作用及水泥与水、土的化学反应原理对增强复合地基承载力的决定作用。介绍了夯扩挤密水泥土桩复合地基的设计过程和方法,以及夯扩挤密水泥土桩施工工艺流程、材料要求、质量控制等内容,为夯扩挤密水泥土桩在同类地区的同类建筑中进一步推广提供了经验,以供借鉴。
Abstract:This paper introduces the characteristics of collapsible loess and its processing method, and emphatically introduces the concept of the compaction pile, development history and its applicable conditions. Mainly discussed lateral eompac tion pile contribution to ruination effects of loess collapsibility and chemical reaction of cement with water, soil contribution to the decisive role of reinforced composite foundation bearing capacity. By engineering example describes the design process and methods compacted soil-cement pile composite foundation construction process and ramming expanded dense cement soil pile and material requirements, quality control. This is the experience for reference of rammed cement-soil compaction pile further promoted in the same building in the same area.
中文标题：
夯扩挤密水泥土桩在处理湿陷性黄土地区高层建筑地基中的应用
Application of the Dynamic Compaction Soil-cement Pile in Dealing with the High-rise Building's Foundation in the Collapsible Loess Region
作者：
宫凤梧
Gong Fengwu
作者简介:宫凤梧,男,1977年生,注册土木工程师(岩土),主要从事水文地质调查与评价、水资源论证、矿区水文、矿山环境以及地质灾害防治方面的研究。E-mail:gfw15830301682@126.com
通讯地址：
河北省地矿局第三地质大队, 河北张家口 075000
No.3GeologicalBrigade,HebeiProvincialGeologicalProspecTingBureau,Zhangjiakou075000,Hebei,China
中图分类号:TU473.12
doi:10.3969/j.issn.1007-2993.2016.06.012
出版物：岩土工程技术
收稿日期:2016-05-16
关键词:湿陷性黄土,夯扩挤密水泥土桩,复合地基,承载力
Key words:collapsible loss,ramming extrusion compaction soil-cement pile,composite foundation,bearing capacity
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