复杂软土地区深基坑内支撑与锚索共同作用初探

周赞良; 付艳斌; 丘建金; 赵军; 贺闯

doi:10.11779/CJGE2014S2069

复杂软土地区深基坑内支撑与锚索共同作用初探 English Version

1. 深圳市勘察测绘院有限公司,广东深圳 518028;
2. 深圳大学土木工程学院,广东深圳 518060;
3. 深圳市鹏瑞地产开发有限公司,广东深圳 518054

基金项目: 国家自然科学基金项目（51108270）; 住房和城乡建设部项目（2010-k3-14）

详细信息

作者简介:
周赞良(1982- ),男,硕士,高级工程师,主要从事岩土工程设计及施工管理方面的工作。E-mail: zliang008@126.com。

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- 收稿日期: 2014-07-27
- 发布日期: 2014-07-27

Interaction between internal bracing and anchor cable of deep foundation pits in complex soft soil areas

1. Shenzhen Geotechnical Investigation and Surveying Institute Co., Ltd., Shenzhen 518028, China;
2. Shenzhen University, Shenzhen 518060, China;
3 Shenzhen Parkland Real Estate Development Co., Ltd., Shenzhen 518054, China

摘要

摘要: 针对填海软土地区深基坑采用的排桩加上部内支撑、下部预应力锚索复合支护结构进行了分析,基坑上部刚度较大的内支撑的存在有效减小了基坑的变形、优化了围护结构的受力,下部预应力锚索可以为桩基提供施工所需空间、减小支撑与地下室施工的相互影响。通过现场监测情况分析及数值模拟初步探索了内支撑与锚索的共同作用,体现了上撑下锚复合支护结构在软土地区的施工便利性及造价优越性,可为类似工程提供参考。
- 软土 /
- 深基坑 /
- 内支撑 /
- 锚索 /
- 共同作用
Abstract: For the deep foundation pit in soft soil areas of coastal reclamation, the composite supporting structure, which is combined by row piles, upper inner support and the lower anchor is analyzed. The mechanical behaviour of the support system is optimized by the upper inner support with more stiffness. The space of pile foundation construction is provided and the interaction between support and basement construction is reduced by the lower anchor. Preliminary studies on interaction between support and anchor are made by analyzing the field monitoring and numerical simulation. The composite supporting structure is convenient in building and has advantage of cost in soft soils, and it may provide valuable references for similar projects in the future.
- soft soil /
- deep foundation pit /
- inner bracing /
- anchorcable /
- interaction

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参考文献(6)

[1]	杨芮, 习志锐, 潘少华. 深基坑支护方案优化及其应力应变分析[J]. 水电能源科学, 2013(12): 143-146. (YANG Rui, XI Zhi-rui, PAN Shao-hua, et al. Scheme optimization and stress -straiin analysis of retaining and protecting for deep foundation excavation[J]. Water Resources and Power, 2013(12): 143-146. (in Chinese))
[2]	冯艳辉, 王武刚, 杨媛. 预应力锚杆复合土钉墙在云南某基坑工程应用中的改进[J]. 建筑结构, 2013, 24: 72-75. (FENG Yan-hui, WANG Wu-gang, YANG Yuan. Improvement of prestressed anchor and composite soil nailing wall in an foundation pit engineering in Yun nan province[J]. Building Structure, 2013, 24: 72-75. (in Chinese))
[3]	朱逢斌, 缪林昌, 顾欢达, 等. 桩墩扶壁复合土钉墙设计参数的敏感性分析[J]. 工业建筑, 2013, 11: 77-83. (ZHU Feng-bin, MIAO Lin-chang, GU Huan-da, et al. Sensitivity analysis of design parametes of composite wall with bored piles in deep excavation[J]. Industrial Construction, 2013, 11: 77-83. (in Chinese))
[4]	黄雪峰, 马龙, 陈帅强, 等. 预应力锚杆内力传递分布规律与时空效应[J]. 岩土工程学报, 2014, 42(4): 1165-1172. (HUANG Xue-feng, MA Long, CHEN Shuai-qiang, et al. Distribution characteristics and time-space effect of internal force for prestressed anchor[J]. Chinese Journal of Geotechnical Engineering, 2014, 42(4): 1165-1172. (in Chinese))
[5]	董诚, 郑颖人, 陈新颖, 等. 深基坑土钉和预应力锚杆复合支护方式的探讨[J]. 岩土力学, 2009, 30(12): 3793-3796+3802. (DONG Cheng, ZHENG Ying-ren, CHEN Xin-ying, et al. Research on composite support pattern of soil nails and prestressed anchors indeep foundation pits[J]. Rock and Soil Mechanics, 2009, 30(12): 3793-3796, 3802. (in Chinese))
[6]	贾金青, 郑卫锋, 陈国周. 预应力锚杆柔性支护技术的数值分析[J]. 岩石力学与工程学报, 2005(21): 180-184. (JIA Jin-qing, ZHENG Wei-feng. Study and application of flexible retaining method with prestressed anchor[J]. Chinese Journal of Geotechnical Engineering, 2005(21): 180-184. (in Chinese))

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复杂软土地区深基坑内支撑与锚索共同作用初探 English Version

作者简介: 周赞良(1982- ),男,硕士,高级工程师,主要从事岩土工程设计及施工管理方面的工作。E-mail: zliang008@126.com。

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出版历程

Interaction between internal bracing and anchor cable of deep foundation pits in complex soft soil areas

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出版历程

目录

作者简介:
周赞良(1982- ),男,硕士,高级工程师,主要从事岩土工程设计及施工管理方面的工作。E-mail: zliang008@126.com。