| 桩基荷载下溶洞顶板承载特性物理模拟研究 |
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| 引用本文： | 闫文佳,阎宗岭,贾学明.桩基荷载下溶洞顶板承载特性物理模拟研究[J].公路交通技术,2012(3):43-46. |
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| 作者姓名： | 闫文佳 阎宗岭 贾学明 |
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| 作者单位： | 1. 重庆交通大学,重庆400074;招商局重庆交通科研设计院有限公司,重庆400067
2. 招商局重庆交通科研设计院有限公司,重庆,400067 |
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| 摘 要： | 应用相似原理将溶洞顶板简化,通过对现场灰岩岩样的室内试验,并结合相似原理,选取能较好模拟灰岩力学特征的模拟材料.在自制桩基物理模拟试验平台上,对模拟项板试件进行极限承载力破坏试验,得到试件的应力应变曲线,并得出相应实际灰岩溶洞顶板的承载能力,为工程设计和施工提供依据.
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| 关 键 词： | 岩溶 溶洞顶板 相似原理 模拟试验 |
Physical Simulatin Research on Bearing Characteristics of Top Plates of Karst Caves under Pile Foundation Load |
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| YAN Wenjia
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YAN Zongling
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JIA Xueming.Physical Simulatin Research on Bearing Characteristics of Top Plates of Karst Caves under Pile Foundation Load[J].Technology of Highway and Transport,2012(3):43-46. |
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| Authors: | YAN Wenjia YAN Zongling JIA Xueming |
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| Abstract: | This paper simplifies top plates of karst caves by means of the principle of similitude,and selects simulating materials that can better simulate chemical characteristics of limestone via indoor test for limestone samples on site and in combination with the principle of similitude.On self-made physical simulation test platform for file foundation,the paper carries out destructive test for ultimate bearing capacity of test specimens of the simulated top plates to obtain stress and strain curves of test specimens and corresponding actual bearing capacity of top plates of limestone karst caves so as to provide bases for engineering design and construction. |
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| Keywords: | karst top plates of karst caves principle of similitude simulation test |
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