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Study on Stability and Deformation for Prestressed Anchor Flexible Retaining Method Used in Deep Foundation Pit
Pages: 24-28
Year: Issue:  12
Journal: Geotechnical Investigation & Surveying

Keyword:  深基坑 预应力锚杆 柔性支护 稳定 变形;
Abstract: 预应力锚杆柔性支护技术作为一种新型的深基坑支护技术在工程中得到了广泛应用,本文对其基本构成进行了阐述,通过有限元数值模拟得到了锚下承载结构各个构件的最佳匹配尺寸。基于传统的极限平衡理论推导了基坑稳定计算公式,基于有限差分法对基坑变形和滑移场进行了研究。计算结果表明,预应力锚杆柔性支护技术能有效控制基坑变形,特别适用于变形控制严格的超深基坑。
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