| 岩性弱结构巷道围岩的塑性区与松动圈形态 |
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| 引用本文： | 樊克恭,蒋金泉.岩性弱结构巷道围岩的塑性区与松动圈形态[J].岩石力学与工程学报,2005,24(A01):5275-5280. |
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| 作者姓名： | 樊克恭 蒋金泉 |
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| 作者单位： | [1]中国地质大学,北京100083 [2]山东科技大学,山东青岛266510 |
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| 基金项目： | 山东省自然科学基金资助项目（Q99F06） |
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| 摘 要： | 根据煤系地层赋存的不均一性和巷道围岩变形破坏的不均衡性，提出了巷道围岩弱结构与弱结构体的概念：在数值模拟及现场实测的基础上，分析了不同类型、断面形状及围岩应力状态下的岩性弱结构巷道塑性区的分布特征，以及岩性弱结构巷道围岩松动圈的发育特征。研究结果为岩性弱结构巷道的非均称控制提供了依据。
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| 关 键 词： | 岩石力学 岩性弱结构 巷道 有限元 塑性区 松动圈 |
| 文章编号： | 1000-6915（2005）增1-5275-06 |
| 收稿时间： | 2004-10-15 |
| 修稿时间： | 2004-10-152005-02-03 |
SHAPE OF PLASTIC AREAS AND FRACTURED ZONE OF SURROUNDING ROCKS OF ROADWAYS WITH WEAK LITHOLOGY STRUCTURES |
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| FAN Ke-gong, JIANG Jin-quan.SHAPE OF PLASTIC AREAS AND FRACTURED ZONE OF SURROUNDING ROCKS OF ROADWAYS WITH WEAK LITHOLOGY STRUCTURES[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(A01):5275-5280. |
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| Authors: | FAN Ke-gong JIANG Jin-quan |
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| Affiliation: | 1. China University of Geosciences, Beijing 100083, China; 2. Shandong University of Science and Technology, Qingdao 266510, China |
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| Abstract: | According to the occurrence of the inhomogeneity and non-equilibrium for the failure deformation of roadways surrounding rocks in the coal measures strata, the concepts of weak structure and weak structure body of roadways of surrounding rocks are presented. Based on numerical simulation and in-situ observation, the distribution characters of plastic areas, in which the different types, section shapes and stress states of surrounding rocks are considered, are analyzed; and the growth characters of fractured zone of roadways with weak lithology structure are studied. The achieved results can provide references to the non-harmonious control on weak lithology structure roadways. |
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