| 采用土工合成材料的新型护岸结构的动态数值模拟 |
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| 引用本文： | 叶 斌,叶冠林,长屋淳一.采用土工合成材料的新型护岸结构的动态数值模拟[J].岩土力学,2010,31(Z2):442-446. |
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| 作者姓名： | 叶 斌 叶冠林 长屋淳一 |
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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. 上海交通大学 土木工程系，上海 200240；3. 地域地盘环境研究所，日本 大阪 |
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| 基金项目： | 同济大学青年优秀人才培养计划基金(No.0230219105)资助。 |
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| 摘 要： | 固化土和土工格栅护岸工法(SG-WALL工法)是一种采用固化土和土工格栅加固港口护岸结构的新型工法。它的抗震性能已经通过一系列振动台试验得到了确认。为了能够数值再现SG-WALL结构在地震荷载作用下的动力反应,对SG-WALL结构的振动台试验进行了动态数值模拟研究。试验和模拟结果的对比表明,数值模拟方法能够再现SG-WALL结构在振动荷载作用下的主要动力特征。模拟结果还表明:固化土的长度对SG-WALL抗震性能起到重要的影响;土工格栅的最大拉应变发生在与排桩的连接处,并且沿着远离排桩的方向逐渐减小。
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| 关 键 词： | 土工合成材料 土工格栅 护岸结构 动态数值模拟 |
| 收稿时间： | 2010-07-29 |
Dynamic numerical simulation of a new quay wall structure with geosynthetics |
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| YE Bin,YE Guan-lin,NAGAYA Junichi.Dynamic numerical simulation of a new quay wall structure with geosynthetics[J].Rock and Soil Mechanics,2010,31(Z2):442-446. |
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| Authors: | YE Bin YE Guan-lin NAGAYA Junichi |
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| Institution: | 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 3. Geo-Research Institute, Osaka, Japan |
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| Abstract: | A new kind of quay wall structure with geosynthetics has been proposed for renewing existing sheet-pile quay wall structures to increase their earthquake resistance capability. The proposed structure (SG-WALL) is the combination of stabilization technique (S) of dredged soil and geogrid (G) for quay wall (Wall).The effectiveness of SG-WALL structure has been verified by a series shaking table tests. Dynamic numerical simulation of the shaking table tests are made trying to reproduce the experiment and find the key factors that will influence the seismic performance of SG-WALL structure. It is proved that the simulation can reproduce the main characteristics of SG-WALL structure during shaking. It is found that the length of stabilized soil plays a significant role in restricting the displacement of the quay wall during shaking. The maximal tensile strain of the geogrid occurs near the connection point with the sheet-pile; and the strain decreases along the geogrid. |
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| Keywords: | geosynthetics geogrid quay wall structure dynamic numerical simulation |
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