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| 土工格栅加筋路堤现场试验研究 | |
| 引用本文： | 冯晓静,杨庆,栾茂田,肖成志,上官云龙.土工格栅加筋路堤现场试验研究[J].大连理工大学学报,2009,49(4):564-570. |
| 作者姓名： | 冯晓静 杨庆 栾茂田 肖成志 上官云龙 |
| 作者单位： | 1. 大连理工大学,土木水利学院,岩土工程研究所,辽宁,大连,116024 2. 大连理工大学,土木水利学院,岩土工程研究所,辽宁,大连,116024;大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024 3. 河北工业大学,土木工程学院,天津,300310 4. 吉林省交通科学研究所,吉林,长春,130022 |
| 摘 要： | 对包裹式加筋路堤进行了现场试验测试分析.试验分别对2种格栅类型、3种不同加筋间距等工况下的土压力、格栅应变、路堤沉降进行了跟踪观测,研究了加筋层数及加筋类型对路堤结构性能的影响.通过试验结果的比较分析发现,包裹式柔性支挡结构土压力受加筋形式及加筋率的影响,双向格栅在降低土压力方面作用更为显著,水平土压力在加筋路堤坡面处接近静止土压力,而加筋体后部则较接近朗肯主动土压力,其分布同时还受到加筋形式和加筋率的影响.应变沿格栅分布并不均匀且各层的分布规律也不尽相同;应变随时间持续会增大,且早期增长快.包裹式加筋对于早期沉降及冻胀的限制作用并不明显.试验显示了加筋路堤的真实工作状态,结果可为土工格栅加筋结构的后续研究和工程实践提供参考. |
| 关 键 词： | 土工格栅 加筋路堤 现场试验 土压力 应变 |
Field experimental study of geogrid reinforced embankment |
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| FENG Xiaojing,YANG Qing,LUAN Maotian,XIAO Chengzhi,SHANGGUAN Yunlong.Field experimental study of geogrid reinforced embankment[J].Journal of Dalian University of Technology,2009,49(4):564-570. | |
| Authors: | FENG Xiaojing YANG Qing LUAN Maotian XIAO Chengzhi SHANGGUAN Yunlong |
| Institution: | FENG Xiao-jing1,YANG Qing1,2,LUAN Mao-tian1,XIAO Cheng-zhi3,SHANGGUAN Yun-long41.Institute of Geotechnical Engineering,School of Civil , Hydraulic Engineering,Dalian University of Technology,Dalian 116024,China,2.State Key Laboratory of Coastal , Offshore Engineering,3.School of Civil Engineering,Hebei University of Technology,Tianjin 300310,4.Communications Scientific Research Institute of Jilin Province,Changchun 130022 |
| Abstract: | The results of field experiment of the geogrid reinforced embankments with wrapped face are reported.In these tests,the structural responses including earth pressure,strain of geogrid and settlement on pavement are investigated for the reinforced embankments with two geogrid types,three different reinforcement spacing and one district without reinforcement.Based on the contrast analysis,it is found that the distribution of earth pressure behind the reinforced embankment is influenced both by reinforcement t... |
| Keywords: | geogrid reinforced embankment field experiment earth pressure strain |
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