| 锚墩下岩体瞬时弹塑性变形分析 |
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| 引用本文： | 景觅,胡毅夫,冯金健,张爱民.锚墩下岩体瞬时弹塑性变形分析[J].交通标准化,2008(14). |
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| 作者姓名： | 景觅 胡毅夫 冯金健 张爱民 |
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| 作者单位： | 中南大学资源与安全工程学院 |
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| 摘 要： | 从强风化岩质边坡的特点出发,运用弹塑性理论分析预应力锚索锚墩下岩体的弹塑性变形,同时结合分层总和法计算锚墩下的岩体力学性态,最终可以以D-P屈服准则确定岩土体的塑性屈服区域,以FLAC3D软件分析锚墩下的岩土体的弹塑性变形屈服特征。通过与分层总和法计算结果的对比分析,以及该方法在某公路边坡工程中的实际应用证明,此方法具有一定的可行性,能给预应力锚索设计和施工提供依据。
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| 关 键 词： | 弹塑性理论 预应力损失 分层总和法 D-P准则 FLAC3D |
Elastoplastic Deformation Analysis of Rock under Prestressed Cable Pier |
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| JING Mi,HU Yi-fu,FENG Jin-jian,ZHANG Ai-min.Elastoplastic Deformation Analysis of Rock under Prestressed Cable Pier[J].Communications Standardization,2008(14). |
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| Authors: | JING Mi HU Yi-fu FENG Jin-jian ZHANG Ai-min |
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| Institution: | JING Mi; HU Yi-fu; FENG Jin-jian; ZHANG Ai-min(School of Resource and Safety Engineering; Central South University; Changsha 410083; China); |
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| Abstract: | According to the characteristics of weathered rock slope,the elastoplastic deformation of the rock mass under prestressed cable pier is analyzed based on elastoplastic theory,at the same time the layer-summation method is integrated to calculate the mechanic property of the rock mass and confirm the plastic area by D-P criterion.Meanwhile,in order to contrast to the result of the layer-summation method,FLAC3D software is used to analyze the elastoplastic deformation of the rock mass under the pier.Finally one highway slope is discussed,which shows that the method is feasible and can serve as criterion for the design and construction of the prestressed cable. |
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| Keywords: | elastoplastic theory prestress loss layer-summation D-P criterion FLAC3D |
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