| FLAC 3D 强度折减理论在边坡稳定分析中的应用 |
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| 引用本文： | 季聪,佴磊,马宏,佘小光,刘录君. FLAC 3D 强度折减理论在边坡稳定分析中的应用[J]. 世界地质, 2013, 32(1): 158-164 |
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| 作者姓名： | 季聪 佴磊 马宏 佘小光 刘录君 |
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| 作者单位： | 1. 吉林大学建设工程学院，长春130021; 2. 中水东北勘测设计研究有限责任公司，长春130021 |
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| 摘 要： | FLAC3D 是岩土工程中广泛应用的软件。本文主要介绍强度折减理论的基本原理，利用基于强度折减法的FLAC3D 软件，对某高速公路K377 + 230 ～ K377 + 520 段滑坡体进行数值模拟。计算边坡在自重作用达到初始化平衡状态时，边坡的横向与竖直方向的应力与位移，分析出边坡的破坏机制为牵引式滑坡，通过强度折减理论计算出边坡的稳定系数为0. 97，由剪切应变增量云图确定边坡的滑动面。
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| 关 键 词： | FLAC3D 强度折减理论 滑动面 稳定系数 |
Application of FLAC 3D strength reduction theory in slope stability analysis |
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| JI Cong , NIE Lei , MA Hong , SHE Xiao-guang , LIU Lu-jun. Application of FLAC 3D strength reduction theory in slope stability analysis[J]. Global Geology, 2013, 32(1): 158-164 |
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| Authors: | JI Cong NIE Lei MA Hong SHE Xiao-guang LIU Lu-jun |
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| Affiliation: | 1. College of Construction Engineering，Jilin University，Changchun 130021，China; 2. China Water Northeastern Investigation，Design ＆ Research Co，Ltd. ，Changchun 130021，China |
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| Abstract: | FLAC 3D is a widely applied software in geotechnical engineering． We mainly introduce the principle of strength reduction theory． Numerical simulation on the K377 + 230 ～ k377 + 520 section of a highway has been made by FLAC 3D sofeware based on strength reduction theory． To calculate the slope lateral and vertical stress and displacement when the slope gets to the initialization equilibrium condition in dead weight function，then to analyze the result that the slope failure mechanism was retrogressive landslide; after that to calculate the slope stability coefficient as 0. 97 through the strength reduction theory，finally to determine the sliding surface by the shear strain increment chart． |
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| Keywords: | FLAC 3D strength reduction theory sliding surface stability coefficient |
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