| 高速公路高填路基松铺厚度与碾压遍数的优化 |
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| 引用本文： | 祝朝旺,刘升传,吴立坚.高速公路高填路基松铺厚度与碾压遍数的优化[J].路基工程,2011,0(1):92-93,96. |
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| 作者姓名： | 祝朝旺 刘升传 吴立坚 |
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| 作者单位： | 1.贵州高速公路开发总公司, 贵阳 550004 |
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| 摘 要： | 高速公路中高路堤是最重要的工程之一,路基沉降,特别是不均匀沉降会导致路面开裂、沉陷,严重影响道路的行驶质量及使用寿命。通过对新建高速公路高填路基现场碾压试验,比较不同松铺厚度在不同碾压遍数和方式下对应路基沉降和孔隙率的关系。结果得出:松铺厚度为45cm、强振7遍时,松铺系数可控制在1.15左右;碾压遍数和方式宜控制为1遍静压→1遍弱振→7遍强振,可保证最后两遍碾压路基沉降差小于3 mm。
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| 关 键 词： | 高速公路 高填方路基 碾压试验 松铺系数 |
| 收稿时间： | 2019-11-10 |
Optimization of Loose Paving Thickness and Compaction Times of High Filled Subgrade of Expressway |
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| Authors: | ZHU Chao-wang LIU Sheng-chuan WU Li-jian |
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| Institution: | ZHU Chao-wang1,LIU Sheng-chuan2,WU Li-jian2(1.Guizhou Expressway Development Corporation,Guiyang 550004,China,2.Research Institute of Highway,Ministry of Transportation,Beijing 100088,China) |
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| Abstract: | High embankment of expressway is one of the most important engineering.Subgrade settlement,especially uneven settlement will cause pavement crack and subsidence,which would seriously influence road traveling quality and service life.Through site compaction test of high filled subgrade of the newly built expressway,the relationship between loose paving thickness and the corresponding subgrade settlement and pore rate under different compaction times and modes is compared.The result shows that when loose pavi... |
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| Keywords: | expressway high fill subgrade compaction test loose paving coefficient |
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