| 兰新高铁路基压实质量孔隙率检测标准探讨 |
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| 引用本文： | 赖国泉,杨斌,杨有海.兰新高铁路基压实质量孔隙率检测标准探讨[J].路基工程,2010,0(6):34-36. |
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| 作者姓名： | 赖国泉 杨斌 杨有海 |
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| 作者单位： | 1.兰州交通大学土木工程学院, 兰州 730070 |
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| 基金项目： | 铁道部科技研究开发计划 |
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| 摘 要： | 通过兰新高速铁路第二双线路基试验段工程孔隙率n检测值的分析认为,对于戈壁地区粗粒土的压实检测,现行孔隙率检测指标不合理,孔隙率标准可予减小。建议现场实测时控制标准:基床以下路堤孔隙率n≤28%,基床底层孔隙率n≤25%。
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| 关 键 词： | 戈壁土 粗粒土 高速铁路路基 孔隙率n 压实系数K |
| 收稿时间： | 2019-11-10 |
Discussion on Porosity Detection Standard for Subgrade Compaction Quality of Lanzhou-Xinjiang High-speed Railway |
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| Authors: | LAI Guo-quan YANG Bin YANG You-hai |
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| Institution: | 1.School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;2.Xinjiang Co.,Ltd.,of Lanzhou-Xinjiang Railway,Urumchi 830011,China) |
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| Abstract: | Through analysis on detection value of porosity n in experimental section of the second double-track subgrade of Lanzhou-Xinjiang High-Speed Railway,it is considered that for compaction detection of coarse-grained soil in Gobi desert,the current porosity detection indicator is irrational,and porosity standard can be reduced.It is suggested that porosity n of the embankment below subgrade is not more than 28 % and that of the underlying subgrade is not more than 25 % as the control stardard in site measurement. |
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| Keywords: | Gobi desert coarse-grained soil high-speed railway subgrade porosity n compaction coefficient K |
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