| 用结构分析方法探索井壁破坏的机理 |
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| 引用本文： | 杨俊杰.用结构分析方法探索井壁破坏的机理[J].安徽理工大学学报(自然科学版),1993(4). |
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| 作者姓名： | 杨俊杰 |
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| 作者单位： | 淮南矿业学院建工系 |
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| 摘 要： | 本文从部分煤矿立井井壁破坏的事例出发,采用井壁结构非线性有限元分析方法,分析了各种外荷载组合与井壁破坏的关系,提出了与实际井壁破坏形态相适应的外荷载组合为较大的竖向负摩擦力和较小的水平侧向力,从而分析得出井壁破坏的主要原因是地下水位的下降,表土地层的固结沉陷,并提出了改善井壁受力条件的措施。
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| 关 键 词： | 井壁 非线性 有限元 负摩擦力 破坏分析 |
Investigation of shaft well failure mechanism through structure analysis |
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| Yang Junjie.Investigation of shaft well failure mechanism through structure analysis[J].Journal of Anhui University of Science and Technology:Natural Science,1993(4). |
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| Authors: | Yang Junjie |
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| Institution: | Dept. of Construction Engineering |
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| Abstract: | A nonlinear finite element method is applied to analyze shaft well structures according to the failure examples of shaft well in some mines. Througn a series of analysis of loading condition, the correlation between the well failure mechanism and applied loads is found. It is concluded that the well failure in tnose examples is due to a large vertical friction and relatively low confining pressure suojected by the well. Sucn a loading condition is caused mainly by the depression of subsoil water pressure, tne consolidation ana settoement of surrounding soil stratta. Some measures are suggested to improve tnd suess condition of the wells. |
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| Keywords: | shaft well non-linear finne elements force of nagative friction failure analysis |
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