| 隧道底部溶洞顶板安全厚度预测模型 |
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| 引用本文： | 王勇,孙彩红.隧道底部溶洞顶板安全厚度预测模型[J].公路,2006(5):228-233. |
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| 作者姓名： | 王勇 孙彩红 |
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| 作者单位： | 1. 中交公路规划设计院,北京市,100010
2. 中国京冶建设工程承包公司,北京市,100088 |
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| 摘 要： | 以某公路岩溶隧道为背景,采用二维弹塑性有限元方法对隧道开挖进行数值模拟计算,分析隧道底部溶洞顶板安全厚度的影响因素,研究各影响因素与安全厚度的相关变化规律,并用多元回归和支持向量机方法建立能综合体现各影响因素的溶洞顶板安全厚度预测模型,从而为岩溶隧道设计施工提供一定的科学依据和指导。
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| 关 键 词： | 岩溶隧道 有限元 安全厚度 支持向量机 预测模型 |
| 文章编号： | 0451-0712（2006）05-0228-05 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2005-11-10 |
Forecasting Model of Safe Thickness for Roof of Karst Cave Under Highway Tunnel |
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| WANG Yong,SUN Cai-hong.Forecasting Model of Safe Thickness for Roof of Karst Cave Under Highway Tunnel[J].Highway,2006(5):228-233. |
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| Authors: | WANG Yong SUN Cai-hong |
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| Institution: | 1. China Highway Planning and Design Institute (HPDI |
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| Abstract: | By means of FEM numerical simulation,the factors affecting the safe thickness of roof of karst cave are analysed and the effect of every factors on the safe thickness of roof are studied with previous data.Forecasting model of safe thickness of roof is obtained by stepwise regression analysis and SVM,which may offer guidance and reference for the design and construction of similar tunnel. |
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| Keywords: | karst tunnel FEM safe thickness SVM forecasting model |
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