| 圆形隧洞周边位移和地层压力预报的简便公式 |
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| 引用本文： | 冯紫良,戴仁杰.圆形隧洞周边位移和地层压力预报的简便公式[J].同济大学学报(自然科学版),1988(2). |
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| 作者姓名： | 冯紫良 戴仁杰 |
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| 作者单位： | 同济大学岩土工程系
(冯紫良),上海城市建设学院(戴仁杰) |
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| 摘 要： | 应用本文所提出的公式可计算地层的初始应力和由开挖引起的洞周位移。预报公式所需要的计算数据是一组相邻测点之间的量测位移,这可通过隧洞的施工监控量测而得到。在推导这些预报公式时,著者先应用一系列的有限元和无限元等数值计算方法来模拟洞室的开挖,从而得到大量的“观测数据”。然后综合应用自动回归和解析方法,建立了实用的计算公式。这些公式使用简便且具有良好的精度。
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| 关 键 词： | 地下工程 变形观测 数值模拟 地应力 圆形隧道 |
The Early Prediction of Ground Stresses and Perimeter Displacements for Circular Tunnel in Elastic Ground |
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| Fen Ziliang,.The Early Prediction of Ground Stresses and Perimeter Displacements for Circular Tunnel in Elastic Ground[J].Journal of Tongji University(Natural Science),1988(2). |
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| Authors: | Fen Ziliang |
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| Abstract: | Taking numerical computation of F. E. M. and infinite element method as akind of experiments and then obtaining plenty of "observed data", the authorssynthesize automatic regression technique and analytical method to derive thepractical prediction formulae, by using which the initial state of ground stres sandstabilized displacements caused by excavation can be calculated from a set of relativemeasurements between two adjacent measuring points in monitoring the stability ofcircular tunnels in elastic ground. The formulae are easy to use and have goodprecision. |
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| Keywords: | Underground engineering Deformation observation Numerical simulation Ground stress Circular tunnel |
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