| 高填方填筑层数对填筑体沉降影响的数值模拟 |
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| 引用本文： | 曾锦秀,胡卸文,罗刚,顾成壮,张耀.高填方填筑层数对填筑体沉降影响的数值模拟[J].山地学报,2012,30(4):491-496. |
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| 作者姓名： | 曾锦秀 胡卸文 罗刚 顾成壮 张耀 |
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| 作者单位： | 1. 西南交通大学地球科学与环境工程学院,四川成都,610031
2. 西南交通大学地球科学与环境工程学院,四川成都610031;西南交通大学抗震工程技术四川省重点实验室,四川成都610031 |
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| 基金项目： | 国家自然科学基金资助项目(40972175);NSFC–云南联合基金重点项目(U1033601);中央高校基本科研业务费专项资金(SWJTU11ZT14)资助~~ |
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| 摘 要： | 以贵州六盘水月照机场东北端边坡为例,采用FLAC3D软件对不同填筑层数下机场高边坡填筑竣工期填筑体沉降进行了模拟,系统分析填筑层数对平均填筑高度达63 m的高填方边坡沉降的影响.结果表明,当模拟层数＜7时,随着模拟填筑层数的增加最大沉降量呈现上下波动的现象,沉降云图中等值线表现为层间不连续；模拟填筑层数继续增加时,最大沉降量趋于某一稳定值,只在其上下做微小波动,沉降云图中等值线逐渐趋于光滑连续；当模拟层数≥7时,最大沉降量趋于稳定,沉降的计算精度满足工程需要.对于平均填筑高度为63 m高填方边坡,建议模拟填筑层数7～9层最为适宜.
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| 关 键 词： | 高填方边坡 分层填筑 沉降量 数值模拟 |
Numerical Simulation of Influence of High Fill Filling Layer Number on Settlement of Filling Body |
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| ZENG Jinxiu
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HU Xiewen
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LUO Gang
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GU Chengzhuang
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ZHANG Yao.Numerical Simulation of Influence of High Fill Filling Layer Number on Settlement of Filling Body[J].Journal of Mountain Research,2012,30(4):491-496. |
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| Authors: | ZENG Jinxiu HU Xiewen LUO Gang GU Chengzhuang ZHANG Yao |
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| Institution: | 1(1.Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu 610031,China; 2.Aseismic Engineering Technology Key Laboratory of Sichuan Province,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Taking the shuiyuezhao airport on the northeast liupanshui slope for example.The aim of this paper is using the software of FLAC3D to simulate the settlement of the filling body of high filled slope of airport during the completion period under different filling layer numbers to analysis the influence of simulated filling layer number on settlement of high slope filling body systematically,and the filling height of which is up to 63 m.The results show that the biggest settlements fluctuate up and down with the increase of simulated filling layer number,and Contour of z-displacement presents discontinuity between layers when the numbers of simulated filling layer less than equal to 7,and the biggest settlements tends to a stable value and do small fluctuations around it when the simulated filling layer number continue to increase;also contour of z-displacement tends smooth and continuous gradually.The biggest settlements tend to a stable value when the numbers of simulated filling layer more than equal to 7,which’s calculation precision of the settlement satisfies the project need.For the high filled slope which’s average height is 63m,7~9 simulated filling layer number was best recommended. |
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| Keywords: | high filled slope layered filling settlement numerical simulation |
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