| 考虑地表沉陷影响的复合地基承载力计算方法 |
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| 引用本文： | 盛 平,于广云,李宏波,王伯平.考虑地表沉陷影响的复合地基承载力计算方法[J].岩土力学,2006,27(Z1):893-896. |
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| 作者姓名： | 盛 平 于广云 李宏波 王伯平 |
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| 作者单位： | 中国矿业大学 建筑工程学院，徐州 221008 |
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| 基金项目： | 国家自然科学基金资助项目（No.50574088） |
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| 摘 要： | 受地下开采的剧烈扰动，采煤沉陷区的复合地基工程会发生非常大的下沉和水平位移，常规的承载力计算方法未考虑地表沉陷影响。在研究地表沉陷影响的复合地基承载特性的基础上，建立了考虑地表沉陷影响的复合地基受力模型，并且提出了考虑地表沉陷影响的复合地基承载力计算方法。通过一个采煤沉陷区桥梁复合地基工程实例的计算分析，发现考虑地表沉陷影响后，复合地基承载力有一定程度的下降。
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| 关 键 词： | 复合地基 承载力 地表沉陷 |
| 收稿时间： | 2006-05-26 |
Bearing capacity calculation approach of composite
subgrade in mining subsidence area |
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| SHENG Ping,YU Guang-yun,LI Hong-bo,WANG Bo-ping.Bearing capacity calculation approach of composite
subgrade in mining subsidence area[J].Rock and Soil Mechanics,2006,27(Z1):893-896. |
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| Authors: | SHENG Ping YU Guang-yun LI Hong-bo WANG Bo-ping |
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| Institution: | School of Architecture and Civil Engineering, China University of Mining And Technology, Xuzhou 221008, China |
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| Abstract: | Disturbed by underground mining, composite subgrade in mining subsidence area have large subsidence and horizontal displacement; however, normal bearing capacity calculation approach neglects this influence. Based on the research on the subsidence influence on composite subgrade bearing capacity, an analysis model is established; and a bearing capacity calculation approach of composite subgrade considering the subsidence influence is presented. By an engineering case of ground improvement of a railway bridge in mining subsidence area, if the subsidence influence is considered, the bearing capacity of composite subgrade decreases somewhat. |
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| Keywords: | composite subgrade bearing capacity surface subsidence |
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