灰土挤密桩在湿陷性黄土地基处理中的应用
Using Lime-soil Compaction Piles to Treat Collapsible Loess Foundation
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- DOI:
- 作者:
- 张宇, 王朋, 马兰
ZHANG Yu, WANG Peng, MA Lan
- 作者单位:
- 中国石油天然气管道工程有限公司
China Petroleum Pipeline Engineering Co.,Ltd.,Langfang 065000,China
- 关键词:
- 地基处理;湿陷性;挤密桩;复合地基;承载力
foundation treatment;collapsibility;compaction pile;composite foundation;bearing capacity
- 摘要:
- 结合灰土挤密桩处理河口分输压气站湿陷性黄土地基的工程实例,对灰土挤密桩施工的工艺流程和施工方法(包括成孔、桩体材料、夯填工艺和处理措施)进行了具体介绍,讨论了复合地基检测方法。检测结果表明,灰土挤密桩复合地基的承载力、桩体平均压实系数和桩间土挤密系数均满足工程要求。
Taking the collapsible loess foundation treatment by lime-soil compaction piles at Hekou Compression Substation for example, this paper gives a concrete description of process flow and construction methods of lime-soil compaction piles, including hole drilling, pile materials, tamping process and treatment measures,and discusses the composite foundation testing methods. The testing results show that the bearing capacity of the composite foundation, pile average compaction coefficient and earth compaction coefficient between piles meet the engineering requirements.2009,S2(S2): 102-104 收稿日期:2009-8-1分类号:TU475.3作者简介:张宇(1975-),男,黑龙江安达人,工程师,1998年毕业于河北工业大学,现从事管道工程设计和管理工作参考文献:
[1] JGJ 79-2002,建筑地基处理技术规范[S].
[2] GB 50025-2004,湿陷性黄土地区建筑规范[S].
[3] 刘景政,杨素春,钟冬波. 地基处理与实例分析[M]. 北京:中国建筑工业出版社,1998.
