| 溶洞顶板稳定性影响因素正交有限元法分析 |
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| 引用本文： | 张林,杨志刚,钱庆强,唐绍辉.溶洞顶板稳定性影响因素正交有限元法分析[J].中国岩溶,2005,24(2):156-159. |
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| 作者姓名： | 张林 杨志刚 钱庆强 唐绍辉 |
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| 作者单位： | 1. 贵州省公路工程总公司,贵州贵阳,550008
2. 长沙矿山研究院,湖南长沙,410012 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 随着岩溶地区兴建越来越多的公路工程,岩溶地基稳定问题已成为公路工程建设中的突出问题,其中又以溶洞的影响最为显著.采用正交弹塑性三维有限元法评价了各因素对溶洞顶板稳定性的影响程度(敏感度).分析结果表明:影响溶洞顶板稳定性的主要因素为顶板岩层厚度、岩体力学特性和溶洞宽度.
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| 关 键 词： | 正交有限元 公路工程 岩溶 稳定性 |
| 文章编号： | 1001-4810(2005)02-0156-04 |
| 修稿时间： | 2005年2月25日 |
ANALYSIS TO FACTORS AFFECTING THE STABILITY OF KARST CAVE CEILING WITH ORTHOGONAL DEFINITE ELEMENT METHOD |
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| ZHANG Lin,YANG Zhi-gang,QIAN Qing-qiang and TANG Shao-hui.ANALYSIS TO FACTORS AFFECTING THE STABILITY OF KARST CAVE CEILING WITH ORTHOGONAL DEFINITE ELEMENT METHOD[J].Carsologica Sinica,2005,24(2):156-159. |
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| Authors: | ZHANG Lin YANG Zhi-gang QIAN Qing-qiang and TANG Shao-hui |
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| Affiliation: | 1.Guizhou Highway Engineering Corporation 2.Changsha Institute of Mining Research,1.Guizhou Highway Engineering Corporation 2.Changsha Institute of Mining Research,1.Guizhou Highway Engineering Corporation 2.Changsha Institute of Mining Research and 1.Guizhou Highway Engineering Corporation 2.Changsha Institute of Mining Research |
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| Abstract: | Since more and more highways are being constructed in karst areas, it is necessary to pay much more attention to the stability of highway foundation during construction. Factors affecting stability of karst cave ceiling include thickness of ceiling, mechanical property of rock and diameter of cavity. Particularly, behaviors of cavities are critical to the stability of highway foundation. The result provides an important basis for selecting measures for treating problems in the field. |
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| Keywords: | Orthogonal definite element Highway engineering Karst areas Stability |
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