| 应用落锤式弯沉仪评价土基模量的试验研究 |
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| 引用本文： | 潘放 陈少幸 张肖宁. 应用落锤式弯沉仪评价土基模量的试验研究[J]. 科学技术与工程, 2007, 7(17): 4392-4397 |
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| 作者姓名： | 潘放 陈少幸 张肖宁 |
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| 作者单位： | 华南理工大学道路工程研究所,广州,510641;广东交通集团检测中心,广州,510420 |
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| 摘 要： | 土基回弹模量是路面设计的重要参数,实验室内测定土基回弹模量的方法为重复荷载三轴试验,野外测试的方法有承载板、动态锥等方法,上述方法操作起来都比较复杂。利用FWD（落锤式弯沉仪）测试土基计算弹性模量,再用国内常用的野外承载板试验测定土基回弹模量,分析FWD弹性模量和回弹模量之间的相关性,研究FWD直接预测土基回弹模量的可行性。结果表明该方法具有一定的可行性。
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| 关 键 词： | 土基 回弹模量 FWD 弹性模量 相关性分析 |
| 文章编号： | 1671-1819(2007)17-4392-06 |
| 修稿时间： | 2007-05-10 |
Experimental Study of Estimating Sub-grade Moduli by Falling Weight Deflectometer |
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| PAN Fang,CHEN Shao-xing,ZHANG Xiao-ning. Experimental Study of Estimating Sub-grade Moduli by Falling Weight Deflectometer[J]. Science Technology and Engineering, 2007, 7(17): 4392-4397 |
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| Authors: | PAN Fang CHEN Shao-xing ZHANG Xiao-ning |
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| Affiliation: | Road Engineer Research Institute of South China University of Technology, Guangzhou 510641 ,P. R. China;1. Guang Dong Traffic Co. Test Center , Guangzhou 510420, P. R. China |
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| Abstract: | Resilient modulus (E0) is an important parameter for pavement design. E0 value is generally obtained by conducting repeated load tri-axial tests in laboratory or bearing plate test; automated dynamic cone penetrometer in situ etc. because of the complexities encountered with the above tests. Testing sub-grade by FWD and calculating elastic modulus by deflections, also testing E0 by bearing plate in situ. The correlation analysis between elastic moduli by FWD back-calculation and E0 was processed. Study feasibility of prediction sub-grade E0 immediately by FWD test results. The result indicates that it is viable in some degree. |
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| Keywords: | sub-grade resilient modulus falling weight deflectometer elastic modulus correlation analysis |
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