| 节理岩坡中注浆效应的FLAC3D数值分析 |
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| 引用本文： | 卢敦华,何忠明,林杭.节理岩坡中注浆效应的FLAC3D数值分析[J].煤田地质与勘探,2007,35(2):45-48. |
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| 作者姓名： | 卢敦华 何忠明 林杭 |
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| 作者单位： | 1. 中南大学地学与环境工程学院,湖南,长沙,410083;郑州经济管理干部学院环境工程系,河南,郑州,451191
2. 中南大学资源与安全工程学院,湖南,长沙,410083 |
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| 摘 要： | 通过理论推导,确定了边坡的有效注浆范围;由三维拉格朗日元法(FLAC3D)建立数值计算模型,在有效注浆范围内对弱面进行注浆。对比节理边坡在注浆前后应力场和位移场的变化,结果表明:通过注浆提高了节理面的抗剪强度和抗剪刚度,使岩体的应力场和位移场变得均匀和连续;边坡上缘的拉应力区逐渐消失;坡体内各个部位的位移分叉现象逐渐减少,有利于边坡稳定。
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| 关 键 词： | 注浆 应力 位移 FLAC3D |
| 文章编号： | 1001-1986(2007)02-0045-04 |
| 修稿时间： | 2006年10月17 |
Numerical analysis for grouting effect in jointed slope by FLAC3D |
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| LU Dun-hua,HE Zhong-ming,LIN Hang.Numerical analysis for grouting effect in jointed slope by FLAC3D[J].Coal Geology & Exploration,2007,35(2):45-48. |
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| Authors: | LU Dun-hua HE Zhong-ming LIN Hang |
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| Abstract: | The effective grouting area for rock bedded slope is calculated.A numerical calculation model is founded by the method of fast Lagrangian analysis of continua three dimensions(FLAC3D).The grouting is done in the effective grouting area.The comparison analysis for the stress field and displacement field before and after grouting are conducted.The analysis results show that after grouting the shear resistance strength and shear stiffness are increased.The stress field and displacement field of rock mass are more symmetrical and continuous.The tensile stress area is reduced gradually.The phenomenon of displacement mutation is reduced,which is good to the stability of slope. |
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| Keywords: | grouting stress displacement FLAC3D |
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