| 高强土工格栅蠕变强度的试验研究 |
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| 引用本文： | 严秋荣,邓卫东,邓昌中. 高强土工格栅蠕变强度的试验研究[J]. 重庆交通大学学报(自然科学版), 2008, 27(4): 597-600 |
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| 作者姓名： | 严秋荣 邓卫东 邓昌中 |
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| 作者单位： | 重庆交通科研设计院,重庆,400067;四川成南高速公路有限责任公司,四川,成都610052 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 选择了2种有代表性的高强土工格栅,进行了室内无侧限蠕变试验。将其中一种应用于路基实体工程中并进行了持续1 a的蠕变观测。试验研究表明,高强土工格栅在近似荷载水平作用下,无侧限条件时的蠕变速率约为侧限条件时的2倍左右。根据试验结果,建议了高强土工格栅的蠕变强度折减系数取值范围。
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| 关 键 词： | 蠕变 试验 高强土工格栅 |
Study on Creep Strength Test of High-Strength Geogrids |
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| YAN Qiu-rong,DENG Wei-dong,DENG Chang-zhong. Study on Creep Strength Test of High-Strength Geogrids[J]. Journal of Chongqing Jiaotong University, 2008, 27(4): 597-600 |
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| Authors: | YAN Qiu-rong DENG Wei-dong DENG Chang-zhong |
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| Abstract: | Two typical high-strength geogrids are selected to do the indoor creep test without any constraint condition.One of them is applied to practical roadbed engineering,where creep observation is kept for a continuous one year.The result of test shows that creep rate under unconfined conditions is almost 2 times of that under confined conditions,if the high-strength geogrids are approximately under load level.At last,some suggestions on the range of creep strength reduction coefficient a- doption for high-strength geogrids are proposed. |
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| Keywords: | creep test high-strength geogrids |
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