| 粗粒土路基的压实试验 |
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| 引用本文： | 冯忠居,张永清.粗粒土路基的压实试验[J].长安大学学报(自然科学版),2004,24(3):9-12. |
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| 作者姓名： | 冯忠居 张永清 |
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| 作者单位： | 长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064 |
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| 基金项目： | 国家西部交通建设科技项目(200131881259) |
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| 摘 要： | 通过改变室内击实试验的击实参数,对影响粗粒土压实特性的相关因素进行分析;利用现场试验,对粗粒土路基压实厚度、压实机械及压实遍数等影响压实效果因素综合分析后,针对粗粒土中粗粒含量的变化,提出采用三点二次插值函数的定量分析方法及定量与定性分析相结合的方法对粗粒土的压实质量进行评价。结果表明,含水量对粗粒土压实影响较小,应采用大吨位的振动压路机对粗粒土进行压实。
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| 关 键 词： | 道路工程 粗粒土路基 压实参数 干密度 含水量 |
| 文章编号： | 1671-8879(2004)03-0009-04 |
| 修稿时间： | 2003年4月28日 |
Compaction test of coarse-grained soil subgrade |
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| FENG Zhong-ju,ZHANG Yong-qing Chang'an University,Xi'an ,China.Compaction test of coarse-grained soil subgrade[J].JOurnal of Chang’an University:Natural Science Edition,2004,24(3):9-12. |
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| Authors: | FENG Zhong-ju ZHANG Yong-qing Chang'an University Xi'an China |
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| Institution: | FENG Zhong-ju,ZHANG Yong-qing Chang'an University,Xi'an 710064,China) |
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| Abstract: | In the experiment, the compaction parameters were changed to test the compaction results, so as to reveal the factors, which influence the compaction results. The compaction depth, compaction mechanics and compaction times were surveyed, the surveying data were analyzed with three-point two-time interpolation function to develop a evaluating system for coarse-grained soil. The results show that the moisture content has little influence on the compaction of coarse-grained soil, so the heavy vibrating compactor should be adopted to compact coarse grained soil. |
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| Keywords: | road engineering subgrade at coarse-grain soil compaction parameter dry density moisture content |
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