| 利用 FLAC 3D 对基坑支护数值模拟分析 |
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| 引用本文： | 马宏,季聪,杨瑞刚,刘录君.利用 FLAC 3D 对基坑支护数值模拟分析[J].世界地质,2013,32(4):857-861. |
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| 作者姓名： | 马宏 季聪 杨瑞刚 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. 中水东北勘察设计研究有限责任公司，长春 130021 |
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| 摘 要： | FLAC 3D 是岩土工程中广泛应用的软件。本文以某地区基坑为背景，进行土钉墙支护设计，并利用 FLAC 3D 软件对土钉墙支护前后进行数值模拟。在基坑开挖完成后，边墙位移一般为 20 ～ 40 cm，最大位移为 45 cm。采用土钉墙支护后，边墙的位移为 2 ～ 4 cm，最大位移为 6 cm。对比表明，土钉墙支护能够有效的阻止基坑的变形，维持基坑的稳定。同时，根据土钉的轴力分布特征，分析基坑在不采取支护措施的情况下将发生滑移破坏。
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| 关 键 词： | FLAC 3D 土钉墙 基坑支护 位移 滑移破坏 |
Numerical simulation analysis of foundation pit support using FLAC 3D |
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| MA Hong,JI Cong,YANG Rui-gang,LIU Lu-jun.Numerical simulation analysis of foundation pit support using FLAC 3D[J].World Geology,2013,32(4):857-861. |
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| Authors: | MA Hong JI Cong YANG Rui-gang LIU Lu-jun |
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| Institution: | 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 software is widely used in geotechnical engineering. Based on the background of a foundation pit in some district, the authors projected the soil nailed wall supporting design and carried out numerical modeling around the soil nailed supporting using FLAC 3D. When the excavation of foundation pit completed, the displacement of side wall commonly was 20 ~ 40 cm, and the maximum was 45 cm. After adopting the soil nailed wall supporting, the displacement was 2 - 4 cm, and the maximum was 6 cm. The contrast showed that the soil nailed wall can prevent the transformation of foundation pit effectively and keep the pit steady. On the basis of axial force distribution of soil nailing, the foundation pit sliding failure will happen when the supporting measure does not adopt. |
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| Keywords: | FLAC 3D soil nailed wall foundation pit supporting displacement sliding failure |
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