| 基于FLAC~(3D)对含软硬岩互层边坡的变形分析 |
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| 引用本文： | 宋大伟,张发明,韩新捷,刘志强.基于FLAC~(3D)对含软硬岩互层边坡的变形分析[J].河北工程大学学报,2016,33(2):86-90. |
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| 作者姓名： | 宋大伟 张发明 韩新捷 刘志强 |
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| 作者单位： | 河海大学 地球科学与工程学院, 南京 211100;河海大学 地球科学与工程学院, 南京 211100;浙江省水利水电勘测设计院, 浙江 杭州 310002;河海大学 地球科学与工程学院, 南京 211100 |
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| 基金项目： | "十一五"国家科技支撑计划项目(2008BA29B03-2);中国水利水电科学研究院开放基金项目(IWHRO2009011) |
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| 摘 要： | 以南京地区采矿形成的边坡为背景,研究含有硬岩的软硬岩互层边坡的稳定性。运用FLAC~(3D)基于有限元强度折减法,模拟不同硬岩岩层的倾角和厚度对顺向坡和反向坡变形的影响,分析对比上述因素对边坡变形影响的大小。研究结果表明,顺向坡中硬岩的倾角越大,厚度越大,变形越小,并且变形有趋于稳定的趋势;反向坡中硬岩的倾角越大,厚度越大,变形先减小后增大,说明上述因素越大,反向坡越容易产生倾倒变形。
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| 关 键 词： | 软硬岩互层边坡 FLAC3D 有限元 强度折减法 岩层厚度 岩层倾角 |
| 收稿时间： | 2016/1/29 0:00:00 |
Analysis of the deformation of the soft and hard rock interaction slope based on FLAC3D |
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| Authors: | SONG Dawei ZHANG Faming HAN Xinjie and LIU Zhiqiang |
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| Affiliation: | School of Earth Sciences and Engineering, Hohai University, Jiangsu Nanjing 210098, China;School of Earth Sciences and Engineering, Hohai University, Jiangsu Nanjing 210098, China;Zhejiang Design Institute of Water Conservancy and Hydroelectric Power, Zhejiang Hangzhou 310002, China;School of Earth Sciences and Engineering, Hohai University, Jiangsu Nanjing 210098, China |
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| Abstract: | Based on the slope of mining in Nanjing area as the background to studied the stability of the soft and hard rock slope. The FLAC3D with the strength reduction FEM was used to solve the different hard rock strata dip and strata thickness to influence the bedding slope and reverse slope''s deformation, then the influence of the above factors on the slope deformation were analyzed and compared. The results show that the dip angle of the hard rock in the slope is bigger, the thickness is bigger, the deformation is smaller and the deformation tends to be stable; the dip angle of the reverse slope is bigger, the thickness is bigger, the deformation decreases and then increases, which shows that the reverse slope is prone to dumping deformation. |
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| Keywords: | soft and hard rock slope FLAC3D strength reduction FEM rock thickness dip angle of rock stratum |
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