| 利用手持式落锤弯沉仪评价路基路面强度参数 |
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| 引用本文： | 郑京杰.利用手持式落锤弯沉仪评价路基路面强度参数[J].公路,2006(8):17-21. |
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| 作者姓名： | 郑京杰 |
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| 作者单位： | 湖南省交通建设质量监督站,长沙市,410011 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 结合湘西通县公路改造工程,应用手持式落锤弯沉仪(HFW D),研究了动回弹模量与旧路面剩余强度、静回弹模量和劈裂强度的关系,得出动回弹模量与路基路面强度参数(剩余强度、静回弹模量和劈裂强度)有较好相关关系的结论。结果表明,手持式落锤弯沉仪可用于路基路面强度参数的快速检测和评价,从而为路面结构的设计提供科学依据。
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| 关 键 词： | 路面改造 手持式落锤弯沉仪 路基路面 强度参数 |
| 文章编号： | 0451-0712（2006）08-0017-05 |
| 收稿时间： | 2006-02-21 |
| 修稿时间： | 2006-02-21 |
Strength Parameters of Subgrade and Pavement Evaluated by Handhold Falling Weight Deflectometer (HFWD) |
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| ZHENG Jing-jie.Strength Parameters of Subgrade and Pavement Evaluated by Handhold Falling Weight Deflectometer (HFWD)[J].Highway,2006(8):17-21. |
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| Authors: | ZHENG Jing-jie |
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| Institution: | Hunan Provincial Construction Supervision Station of Communications, Changsha 410011,China |
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| Abstract: | Through reconstruction engineering of pavement, the relationships of dynamic rebound modulus and residual strength,static rebound modulus and splitting strength of old pavement are studied by HFWD. It is pointed that the obtained satisfactory correlation of dynamic rebound modulus and strength parameters of subgrade and pavement(residual strength,static rebound modulus and splitting strength) is over 0.8.The results show HFWD is feasible to measure and evaluate strength parameters of subgrade and pavement,which provides scientific reference for pavement structure design. |
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| Keywords: | pavement reconstruction handhold falling weight deflectometer subgrade and pavement strength parameter |
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