| 基于FWD的水泥混凝土路面脱空评定方法 |
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| 引用本文： | 张文武,廖启,刘志前,马世洪.基于FWD的水泥混凝土路面脱空评定方法[J].贵州工业大学学报(自然科学版),2008,37(4). |
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| 作者姓名： | 张文武 廖启 刘志前 马世洪 |
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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. 湖南中南市政建设集团股份有限公司,湖南,长沙,410015 |
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| 摘 要： | 利用落锤式弯沉仪(FWD)实测弯沉数据,通过有限元理论分析,建立了水泥混凝土路面脱空评定方法:将板下地基的脱空理解为地基刚度参数的衰弱,由FWD实测缝边的弯沉值及接缝的传荷系数,评定基础的刚度参数,将此刚度参数与无脱空状态(均匀支撑)时的标准值进行比较.通过工程实践,表明此评定方法较为简便实用.
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| 关 键 词： | 水泥混凝土路面 脱空 评定 |
Evaluation method on the Cavity of Cement Concrete Pavement Based on Falling Weight Deflectometer |
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| ZHANG Wen-WU,LIAO Qi,LIU zhi-qian,MA Shi-hong.Evaluation method on the Cavity of Cement Concrete Pavement Based on Falling Weight Deflectometer[J].Journal of Guizhou University of Technology(Natural Science Edition),2008,37(4). |
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| Authors: | ZHANG Wen-WU LIAO Qi LIU zhi-qian MA Shi-hong |
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| Institution: | ZHANG Wen-wu1,LIAO Qi2,LIU Zhi-qian1,MA Shihong1(1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China,2.Hunan Zhongnan Municipal Englineering Group Corporation LTD,Changsha 410015,China) |
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| Abstract: | Using FWD data from field test and analysis theory of finite element,an evaluation method of cement concrete pavement is established.The cavity of foundation beneath old pavemet slab is considered as debility of foundation stiffness parameters.The base stiffness parameters,compared with standard values of no cavity,is estimated according to deflection of joint and its load transfer coefficient.The practice shows that this evaluation method is convenient and practical. |
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| Keywords: | FWD |
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