| 水泥混凝土路面下碎石层缓冲差异沉降前后力学分析 |
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| 引用本文： | 王大鹏,孙宏峰. 水泥混凝土路面下碎石层缓冲差异沉降前后力学分析[J]. 公路, 2011, 0(7) |
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| 作者姓名： | 王大鹏 孙宏峰 |
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| 作者单位： | 交通运输部公路科学研究院 北京市 100088 |
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| 基金项目： | 交通运输部应用基础项目,项目编号2010-319-223-050 |
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| 摘 要： | 在碎石层缓冲路基差异沉降的基础上,分析了碎石层变形缓冲前后支撑模量的变化,并提出了有限元计算模型,计算了水泥混凝土路面在均匀支撑、有碎石层差异变形缓冲调节后、无碎石层完全脱空等3种支撑状态下的挠度及应力。根据模型计算结果发现,碎石层不但可以从变形上消除路基出现的差异沉降,而且可以减小路面结构在差异沉降发生时产生的附加应力。
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| 关 键 词： | 道路工程 水泥混凝土路面 差异沉降 碎石层 力学分析 |
Mechanical Analysis of Cement Concrete Pavement Using Crushed Rock Layer Eliminating Differential Settlement |
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| WANG Da-peng,SUN Hong-feng. Mechanical Analysis of Cement Concrete Pavement Using Crushed Rock Layer Eliminating Differential Settlement[J]. Highway, 2011, 0(7) |
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| Authors: | WANG Da-peng SUN Hong-feng |
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| Affiliation: | WANG Da-peng,SUN Hong-feng(Research Institute of Highway of the Ministry of Transport,Beijing 100088,China) |
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| Abstract: | On the basis of model experiment,the effect of eliminating differential settlement is validated.The experiment shows that the crushed rock layer which can eliminate the differential settlement mostly depends on the secondary loose coefficient.And then the changes of crushed rock modules are researched.Through mechanical calculation the fact can be confirmed that crushed rock layer not only can eliminate the differential settlement,but also can reduce the additional stress. |
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| Keywords: | road engineering cement concrete pavement differential settlement crushed rock layer mechanical analysis |
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