| 基于监测数据的围护墙弯矩反分析研究 |
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| 引用本文： | 李文广,张修成,刘国彬,毛朝辉. 基于监测数据的围护墙弯矩反分析研究[J]. 山东理工大学学报：自然科学版, 2006, 20(3): 31-34,39 |
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| 作者姓名： | 李文广 张修成 刘国彬 毛朝辉 |
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| 作者单位： | 同济大学,土木工程学院,上海,200092;枣庄建设培训中心,山东,枣庄,277100 |
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| 摘 要： | 在基坑开挖过程中实时对整个基坑安全状态进行评判,动态地评判基坑的安全状态,对保证基坑安全具有重要的现实意义.其中如何在基坑开挖过程中获得围护墙的实际弯矩,成为评判围护墙内力安全状态的关键.针对荷载等效的情况,提出了光顺样条拟合围护墙变形求曲率的计算方法,将计算得到的弯矩,与通过钢筋应力计推算得到的弯矩进行对比分析,验证了方法的正确性.
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| 关 键 词： | 基坑安全 曲率 光顺样条 围护墙弯矩 |
| 文章编号： | 1672-6197（2006）03-0031-04 |
| 收稿时间： | 2006-01-11 |
| 修稿时间： | 2006-01-11 |
Study on back analysis for bending moment of retaining wall based on monitoring data |
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| LI Weng-guang,ZHANG Xiu-cheng,LIU Guo-bin,MAO Chao-hui. Study on back analysis for bending moment of retaining wall based on monitoring data[J]. Journal of Shandong University of Technology:Science and Technology, 2006, 20(3): 31-34,39 |
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| Authors: | LI Weng-guang ZHANG Xiu-cheng LIU Guo-bin MAO Chao-hui |
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| Affiliation: | 1. School of Civil Engineering, Tongji University, Shanghai 200092, China; 2. Zaozhuang Construction Training Center, Zaozhuang 277100, China |
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| Abstract: | A great deal of excavations come up with the massive construction of subway station for urban railway transportation.How to evaluate the real-time status in the process of excavation is meaningful for the safety of deep pits.And the key process is how to obtain the real bending moment of the retaining wall.The computational method,in which the curvature is obtained by smooth spline curve fitting of the deformation of the retaining wall,is presented.The accuracy of the method is validated by contrasting the results with that of method of smooth spline. |
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| Keywords: | safety of excavation curvature smooth spline bending moment of retaining wall |
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