| 水泥稳定碎石基层预锯缝间距的探讨 |
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| 引用本文： | 胡学亮,杨文军,朱洪洲,韦刚.水泥稳定碎石基层预锯缝间距的探讨[J].重庆交通大学学报(自然科学版),2009,28(1):74-76. |
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| 作者姓名： | 胡学亮 杨文军 朱洪洲 韦刚 |
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| 作者单位： | 1. 重庆交通大学土木建筑学院,重庆,400074
2. 重庆高速公路发展有限公司垫利分公司,重庆,400060 |
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| 基金项目： | 重庆交通委员会科技项目 |
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| 摘 要： | 基于弹性力学的基本理论,综合考虑温缩应力和干缩应力对裂缝的影响后,提出了水泥稳定碎石基层预锯缝间距的计算公式,分析了基层厚度、温差和锯缝间距的关系。并且以重庆地区为例,给出了不同基层厚度锯缝间距的建议值。
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| 关 键 词： | 半刚性基层 锯缝间距 反射裂缝 |
Discussion on Pre-Cracking Spacing of Cement-Stabilized Crushed-Stone Base |
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| HU Xue-liang,YANG Wen-jun,ZHU Hong-zhou,WEI Gang.Discussion on Pre-Cracking Spacing of Cement-Stabilized Crushed-Stone Base[J].Journal of Chongqing Jiaotong University,2009,28(1):74-76. |
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| Authors: | HU Xue-liang YANG Wen-jun ZHU Hong-zhou WEI Gang |
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| Institution: | 1.School of Civil Engineering & Architecture;Chongqing Jiaotong University;Chongqing 400074;China;2.Dianli Branch;Chongqing Expressway Development Co.Ltd;Chongqing 400060;China |
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| Abstract: | Basing on the basic theory of elasticity,the computation formula of the pre-cracking spacing of cement-stabilized crushed-stone base is proposed,with the consideration of stress-reduction and shrinkage stress on the impact of cracks.And then the relationship among basic thickness,temperature difference and the spacing of pre-cracking is analyzed.Taking Chongqing region as an example,the recommendation values of the spacing of pre-cracking at different basic thickness are given. |
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| Keywords: | semi-rigid base the spacing of pre-cracking reflection crack |
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