| 采动覆岩力学模型及断裂破坏条件分析 |
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| 引用本文： | 康建荣,王金庄. 采动覆岩力学模型及断裂破坏条件分析[J]. 煤炭学报, 2002, 27(1): 16-20 |
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| 作者姓名： | 康建荣 王金庄 |
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| 作者单位： | 1. 太原理工大学,测绘科学与技术系,山西,太原,030024
2. 中国矿业大学,北京校区,北京,100013 |
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| 基金项目： | 国家自然科学基金项目 (5 97740 0 7),山西省青年科学基金资助项目 (9910 12 ) |
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| 摘 要： | 根据覆岩破坏的机理建立了采动覆岩初次断裂前,后的力学模型,并根据此力学模型,运用梁曲变形理论分析了采动覆岩断裂破坏的条件,在考虑上覆岩层的岩性,厚度,埋深等因素的基础上,建立了上覆岩层断裂时临界开采长度的计算模型,并以此模型进行了实例计算分析。
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| 关 键 词： | 采动覆岩 力学模型 断裂破坏条件 梁曲变形理论 岩性 埋深 |
| 文章编号： | 0253-9993(2002)01-0016-05 |
| 修稿时间： | 2001-05-15 |
The mechanical model of the overburden rock under mining and the broken condition analysis |
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| KANG Jian rong ,WANG Jin zhuang. The mechanical model of the overburden rock under mining and the broken condition analysis[J]. Journal of China Coal Society, 2002, 27(1): 16-20 |
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| Authors: | KANG Jian rong WANG Jin zhuang |
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| Affiliation: | KANG Jian rong 1,WANG Jin zhuang 2 |
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| Abstract: | According to the broken mechanism of the overburden rock under mining, the mechanical model in before and after initial caving is established. Based on the model, the broken condition of the overburden rock is analyzed by using the beam bend theory. By considered the factors of strata character and its thickness and depth, a calculating model of the critical extraction length when the overburden strata break down is established. Then a calculation example is given to analyze the condition. |
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| Keywords: | overburden rock under mining mechanical model broken condition |
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