| 基于拓宽罩面刚性基层的路基差异沉降标准研究 |
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| 引用本文： | 黄昌明,袁万杰,何阳春.基于拓宽罩面刚性基层的路基差异沉降标准研究[J].路基工程,2011,0(4):4-6. |
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| 作者姓名： | 黄昌明 袁万杰 何阳春 |
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| 作者单位： | 1.佛山市三水区交通建设投资有限公司, 广东佛山 528100 |
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| 基金项目： | 广东省交通厅科技项目(200413) |
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| 摘 要： | 针对水泥混凝土路面拓宽罩面结构的受力特征，通过现行设计规范对复合式路面疲劳应力进行了验算，采用有限元对碾压混凝土刚性基层因路基差异沉降引起的板顶横向和竖向应力分布进行了计算。结果表明，随着路基差异沉降量的增加板顶最大横向拉应力亦增大，为满足碾压混凝土3.5MPa设计弯拉强度的要求，新旧路基差异沉降量应控制在50mm范围内。
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| 关 键 词： | 刚性基层 差异沉降 路基 有限元 |
| 收稿时间： | 2019-11-10 |
Study on Differential Settlement of Subgrade with Overlay-widened Rigid Base |
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| Authors: | HUANG Chang-ming YUAN Wan-jie HE Yang-chun |
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| Institution: | HUANG Chang-ming1,YUAN Wan-jie2,HE Yang-chun2(1.Foshan Sanshui Traffic Construction Investment Co.,Ltd.,Foshan 528100,Guangdong,China,2.Guangdong CAC Engineering Consultants Co.,Guangzhou 510627,China) |
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| Abstract: | According to the stress characteristics of the overlay-widened cement concrete pavement structure,the fatigue stress of composite concrete pavement was checked using the calculation formulas in current design specification.Meanwhile,the distribution of transverse stress and vertical stress on the top of cement concrete slab caused by differential settlement of subgrade were calculated using finite element method.The results showed that the maximum transverse stress on the top of cement concrete slab increas... |
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| Keywords: | rigid base differential settlement subgrade finite element |
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