| 层状岩体抗弯刚度及其软弱夹层效应 |
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| 引用本文： | 赵平劳.层状岩体抗弯刚度及其软弱夹层效应[J].兰州大学学报(自然科学版),1992(3). |
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| 作者姓名： | 赵平劳 |
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| 作者单位： | 兰州大学地质系 兰州730000 |
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| 摘 要： | 本文应用梁的弯曲理论,在对层状岩体特性较全面认识的基础上,给出了层状岩体抗弯刚度的一般计算公式.通过实例计算发现,层状岩体抗弯刚度不仅与各层岩石的力学参数有关,而且与各层的组合方式有关.此外,顺层软弱夹层对层状岩体抗弯刚度的降低尤为显著,应予充分考虑.本文的分析计算为层状岩体顺倾边坡弯曲剪切机制及陡倾边坡倾倒机制研究,以及它们的稳定性评价建立了基础.
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| 关 键 词： | 抗弯刚度 层状构造 岩体 软弱夹层 |
The Bending Rigidity of Bedded Rock Mass and Effect of Weak Intercalations |
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| Zhao Pinglao.The Bending Rigidity of Bedded Rock Mass and Effect of Weak Intercalations[J].Journal of Lanzhou University(Natural Science),1992(3). |
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| Authors: | Zhao Pinglao |
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| Abstract: | In this paper,the general calculating method of bending rigidity ofbedded rock mass has been studied on the basis of a systematic study ofthe mechanical properties of bedded rock mass(containing the results madeby the former and the author)and by applying the bending theory ofbeams.It has been revealed that the bending rigidity of bedded rock massis conspressive properties affected by the differences betweet tensileproperties and compressive properties of bedded rock mass and the differenceof the mechanical properties of every layer.Besides,the formula ofcalculating bending rigidity has been obtained and the basis has been laidfor studying the engineering geological problems relating to the bend ofbedded rock mass,for example,the bending-shearing mechanism of dipslopes and the toppling of steep slopes in bedded rock mass,etc. |
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| Keywords: | bending ribidity bedded structure rock mass weak interalations |
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