| 土工合成材料土中拉伸试验研究 |
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| 引用本文： | 吴迪,徐超,李丹,祁昌伟.土工合成材料土中拉伸试验研究[J].西北地震学报,2011,33(Z1). |
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| 作者姓名： | 吴迪 徐超 李丹 祁昌伟 |
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| 作者单位： | 1. 同济大学地下建筑与工程系,上海,200092
2. 同济大学地下建筑与工程系,上海200092;同济大学岩土及地下工程教育部重点实验室,上海200092 |
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| 基金项目： | 国家自然科学基金(No.50878154) |
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| 摘 要： | 土工合成材料加筋技术在工程中的应用日益广泛,但其试验手段还显得相对单一,如土工合成材料的拉伸性能往往在空气中进行测试,与实际工程中的土中受力条件有较大差别。本文通过研制的多功能土工合成材料土中拉伸试验机,测试了五种不同土工合成材料的土中拉伸性能及其在四种法向荷载下的表现。结果表明:土工合成材料土中拉伸试验与空气中的差别巨大,尤其对于无纺土工织物。由于两侧土体对拉伸材料施加的法向荷载相当于给予了侧限的作用,拉伸试验中的割线模量具有较大的增大。
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| 关 键 词： | 土工合成材料 加筋土 土中拉伸试验 割线模量 |
Research on In-soil Tensile Test of Geosynthetics |
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| WU Di,XU Chao,LI Dan,QI Chang-wei.Research on In-soil Tensile Test of Geosynthetics[J].Northwestern Seismological Journal,2011,33(Z1). |
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| Authors: | WU Di XU Chao LI Dan QI Chang-wei |
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| Institution: | WU Di 1,XU Chao 1,2,LI Dan 1,QI Chang-wei 1(1.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China,2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,China) |
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| Abstract: | The soil-reinforcement technology in geosynthetics has become a wildly acceptable approach for constructing soil structure. Homever,the test technique for the geosynthetics is much backward compared with engineering application.For example,there are significant differences between the results of regular tensile test in air and in-soil tensile test for the geosynthetics.In this paper,study on the tensile response test of geosynthetics in-soil using a new developed multifuncational geosynthetics in-soil tensi... |
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| Keywords: | Geosynthentics Reinforced soil In-soil tensile test Secant modulus |
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