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| 某路基堆载预压处理的有限元数值模拟 | |
| 引用本文： | 柳爱,邹永诚,谢丽民.某路基堆载预压处理的有限元数值模拟[J].人民长江,2012,43(11):62-65. |
| 作者姓名： | 柳爱 邹永诚 谢丽民 |
| 作者单位： | 1. 台州职业技术学院,浙江台州,318000 2. 台州城乡规划设计研究院,浙江台州,318000 3. 台州湾循环产业集聚区管理委员会,浙江台州,318000 |
| 摘 要： | 针对软弱黏土路基易发生失稳及工后沉降大的缺点，采用塑料排水板堆载预压对路基进行处理。采用等效砂墙方法及剑桥模型，建立了台州湾围海工程路基堆载预压处理的平面有限元模型。分析不同堆载高度下塑料排水板间距和长度对加载速度、预压时间和沉降值的影响。分析结果表明，预压时间受排水板长度影响明显； 预压期结束后，路面沉降均匀，可以保证路面施工质量。 |
| 关 键 词： | 软土 堆载预压 塑料排水板 固结 |
FEM numerical simulation of pre - loading treatment for a roadbed project |
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| LIU Ai , ZOU Yongcheng , XIE Limin.FEM numerical simulation of pre - loading treatment for a roadbed project[J].Yangtze River,2012,43(11):62-65. | |
| Authors: | LIU Ai ZOU Yongcheng XIE Limin |
| Affiliation: | 1.Taizhou Vocational and Technical College,Taizhou 318000,China;2.Taizhou Urban and Rural Designing and Researching Institute,Taizhou 318000,China;3.Taizhou Recycling Industry Nesting Zone Management Committee,Taizhou 318000,China) |
| Abstract: | Soft clay roadbed has disadvantages of easy instability and large settlement.We take measures of pre-loading drainage plate to treat the roadbed accordingly.Based on equivalent sand-wall method and Cambridge model,a plane FEM model is established for pre-loading roadbed treatment in a sea reclamation engineering at Taizhou Bay.The influence of length and distance of plastic drainage plate on the loading velocity,the pre-loading time and the settlement amount under different loading heights are analyzed.The results show that the pre-loading time is significantly affected by the length of drainage plate;even road settlement occurred after pre-loading period,which ensures the construction quality. |
| Keywords: | soft soil pre-loading plastic drainage plate consolidation |
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