| 土工格栅加筋膨胀土渠坡数值模拟研究 |
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| 引用本文： | 徐 晗,汪明元,黄 斌,杨 洪.土工格栅加筋膨胀土渠坡数值模拟研究[J].岩土力学,2007,28(Z1):599-603. |
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| 作者姓名： | 徐 晗 汪明元 黄 斌 杨 洪 |
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| 作者单位： | 1. 长江科学院，武汉 430010；2. 水利部岩土力学与工程重点实验室，武汉 430010 |
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| 基金项目： | 长江科学院博士启动基金（重点实验室No. 22号） |
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| 摘 要： | 对土工格栅加筋膨胀土渠坡这种较新的膨胀土处理措施进行研究，在考虑土工格栅与填土之间的相互作用、膨胀土吸水膨胀、软化特性等膨胀土渠坡关键影响因素的基础上，提出了土工格栅加筋膨胀土渠坡数值计算的新思路，并采用有限差分软件Flac3D进行了验证。数值算例结果表明，土工格栅对膨胀土渠坡有明显的水平位移约束作用，是有效的处理措施，可以在实际工程中采用。
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| 关 键 词： | 土工格栅 膨胀土 FLAC3D 渠坡 |
| 收稿时间： | 2007-05-10 |
Numerical simulation research on canal slope of expansive soil strengthened by geogrid |
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| XU Han,WANG Min-yuan,HUANG Bin,YANG Hong.Numerical simulation research on canal slope of expansive soil strengthened by geogrid[J].Rock and Soil Mechanics,2007,28(Z1):599-603. |
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| Authors: | XU Han WANG Min-yuan HUANG Bin YANG Hong |
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| Institution: | 1. Yangtze River Scientific Research Institute, Wuhan 430010, China; 2. Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Wuhan 430010, China |
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| Abstract: | A new measure for canal slope of expansive soil which uses geogrid to strengthen expansive soil and expansive soil as backfill is studied. Base on the consideration of some key factors such as the interaction between geogrid and expansive soil, expansion which is caused by absorbing water and softening characteristics, a new way of calculation is presented for canal slope of expansive soil which is strengthened by geogrid, and this method is verified by FLAC3d. The result shows that geogrid can obviously restrict the horizontal displacement of canal slope of expansive soil, so it is an effective measure and can be applied to practical engineering. |
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| Keywords: | geogrid expansive soil FLAC3D |
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