钢管土钉在某深厚填土基坑中的应用

乔丽平

钢管土钉在某深厚填土基坑中的应用 English Version

乔丽平

(深圳市市政设计研究院有限公司，广东深圳 518029)

详细信息

作者简介:
乔丽平(1979– )，男，湖北孝感人，硕士，国家注册土木工程师（岩土），主要从事地基处理、基坑、边坡工程的设计、研究及咨询工作。

中图分类号: TU47
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

Application of soil nailing of steel tube in an excavation with deep fills

QIAO Li-ping

(Shenzhen Municipal Design & Research Institute Co., Ltd., Shenzhen 518029, China)

摘要

摘要: 结合钢管土钉在某深厚填土基坑中应用的工程实例，介绍了填土深基坑采用钢管土钉支护的特点、设计计算过程及应注意的事项，重点讨论了在深厚填土基坑中设计计算时填土抗剪强度参数，值、钉–土摩阻力如何合理取值的问题及填土年限的判断方法，同时强调施工中钢管土钉的制作工艺和注浆质量的好坏是决定基坑支护成败的关键，其设计参数处理思路和施工工艺要求可供类似基坑工程设计施工时参考。
- 钢管土钉 /
- 填土参数 /
- 建筑基坑 /
- 设计
Abstract: Based on the engineering application of soil nailing of steel tube in an excavation with deep filling soils, the characteristics of the excavation, the procedures of design and calculation and the attentive aspects are introduced. How to reasonably choose the shear intensity parameters and of the filling soils and the friction of the nail-soil in the design and calculation and the ways to judge the years of the filling soils, are discussed. At the same time, the production technology of the soil nailing of steel tube and the quality of the jet grouting, which are the key to successful excavation bracings, are emphasized. The ideas of how to choose the design parameters and the requirements of construction technology may offer reference for similar excavation projects.
- soil nailing of steel tube /
- fill parameter /
- excavation /
- design

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参考文献(6)

[1]	SJG05—96 深圳地区建筑深基坑支护技术规范[S]. 深圳: 深圳市建设局, 1996. (SJG05—96 Technical code for retaining and protection of deep building foundation excavations in shenzhen area[S]. Shenzhen: Bureau of Construction of Shenzhen City, 1996. (in Chinese))
[2]	JGJ120—99建筑基坑支护技术规程[S]. 北京: 中国建筑工业出版社, 1999. (JGJ120—99 Technical specification for retaining and protection of building foundation excavations[S]. Beijing: China Architecture and Building Press, 1999. (in Chinese))
[3]	DBJ15—31—2003 建筑地基基础设计规范[S]. 广州: 广东省建设厅, 2003. (DBJ15—31—2003 Code for design of building foundation[S]. Guangzhou: Department of Construction of Guangdong Province, 2003. (in Chinese))
[4]	GB50007—2002 建筑地基基础设计规范[M]. 北京: 中华人民共和国建设部, 2002. (GB50007—2002 Code for design of building foundation[S]. Beijing: Ministry of Construction P.R. China, 2011. (in Chinese))
[5]	SJG05—2011深圳市基坑支护技术规范[S]. 深圳: 深圳市建设局, 2011. (SJG05—2011 Technical code for retaining and protection of excavations in shenzhen city[S]. Shenzhen: Bureau of Construction of Shenzhen City, 2011. (in Chinese))
[6]	刘彦忠. 复合土钉墙技术在杂填土层基坑支护中的应用[J]. 岩土力学, 2002, 23(4): 520–523. (LIU Yan-zhong. Application of compound soil nailing to excavation retaining in miscellaneous fill[J]. Rock and Soil Mechanics, 2002, 23(4): 520–523. (in Chinese))