| 崔建华,刘创.合肥地铁车站明挖法施工基坑抗拔桩的受力数值模拟[J].安徽建筑大学学报,2016,24(1):6-9 |
| 合肥地铁车站明挖法施工基坑抗拔桩的受力数值模拟 |
| Numerical Simulation of Uplift Pile about Open Surface Method Construction Foundation Pit of HeFei Metro Station |
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| DOI：10.11921/j.issn.2095-8382.20160102 |
| 中文关键词: 深基坑 明挖法 抗拔桩 数值模拟 |
| 英文关键词: deep foundation open surface method uplift pile numerical simulation |
| 基金项目:安徽省科技攻关计划项目资助（501041133） |
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| 中文摘要: |
| 基坑开挖过程中导致地基土体呈卸载状态,因而改变了抗拔桩和底板原有的受力特点。本文通过Midas/GTS有限元分析软件，对合肥地铁车站明挖法施工过程中基坑抗拔桩的受力进行了数值分析，系统的研究了基坑开挖导致原地基中抗拔桩承载性能的改变，从基坑开挖的深度，范围，施工进度等方面探讨了对桩的承载力，摩擦力，轴力的影响规律，提出了相应的设计和施工建议，为今后类似工程提供参考。 |
| 英文摘要: |
| Foundation soil is in unloaded state during of foundation pit, It’s changing stress characteristics of uplift pile and floor. This paper analyzes stress characteristics of uplift pile in Open surface method construction about Hefei metro station by Midas/GTS. It systematically researches the changes to bearing capacity of uplift pile foundation caused by excavating the foundation It also investigates the influence regulation of frictional force, bearing capacity and axial force from the depth, scope and construction progress of the excavation. It proposes some design and construction advices for the reference forsimilar projects in the future., |
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