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| 纤维类材料改善膨胀土工程性能的适用性探讨 | |
| 引用本文： | 胡斌,王新刚,连宝琴. 纤维类材料改善膨胀土工程性能的适用性探讨[J]. 岩土工程学报, 2010, 0(Z2) |
| 作者姓名： | 胡斌 王新刚 连宝琴 |
| 作者单位： | 岩土钻掘与防护教育部工程研究中心;教育部长江三峡库区地质灾害研究中心;中国地质大学工程学院;浙江大学岩土工程岩土所; |
| 基金项目： | 中央高校基本科研业务费专项资金项目(CUGL100413); 国家自然科学基金项目(50609026); 教育部高等学校博士学科点专项科研基金项目(200804911526); 中国博士后科学基金项目(20091021) |
| 摘 要： | 通过室内土工试验和数值模拟分析研究纤维类材料改良膨胀土的可行性和效果。结合室内试验结果,采用有限差分软件FLAC3D模拟均质膨胀土边坡和加FRP锚杆后的改良膨胀土边坡,并对二者进行了对比。室内土工试验表明,聚乙烯纤维能有效提高膨胀土的膨胀率和膨胀力以及显著降低纤维土的收缩性。数值模拟分析表明,纤维增强复合塑料能有效增加膨胀土边坡安全系数,减少滑动位移。 |
| 关 键 词： | 纤维 FRP锚杆 FLAC3D 强度折减法 |
Applicability exploration of improving engineering properties of expansive soil with fiber materials |
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| HU Bin,,WANG Xin-gang,LIAN Bao-qin. Applicability exploration of improving engineering properties of expansive soil with fiber materials[J]. Chinese Journal of Geotechnical Engineering, 2010, 0(Z2) | |
| Authors: | HU Bin WANG Xin-gang LIAN Bao-qin |
| Affiliation: | HU Bin1,2,3,WANG Xin-gang1,LIAN Bao-qin4(1.Engineering Research Center of Rock-Soil Drilling & Excavation and Protection,Ministry of Education,Wuhan 430074,China,2.Yangtze River Three Gorges Geological Disaster Research Center,3.Department of Engineering,China University of Geosciences,4.Institute of Geotechnical Engineering,Zhejiang University,Hangzhou 310058,China) |
| Abstract: | Through the indoor test and numerical analysis,the feasibility and effect of expansive soil improvement with fiber materials are analyzed.Combined with results of laboratory test,homogeneous expansive soil slope and expansive soil slope with FRP Anchor are simulated and compared using FLAC3D.Indoor test shows that Polyethylene fibers not only can improve the swelling rate and swelling pressure of expansive soil,but also reduce the shrinkage of soil with fibers significantly.Numerical simulation shows that F... |
| Keywords: | fiber FRP anchor FLAC3D strength reduction |
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