| 黄土湿陷性与黄土粉煤灰石灰混合料试验 |
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| 引用本文： | 李凤起,姚建平,赵冬生,陈耕野.黄土湿陷性与黄土粉煤灰石灰混合料试验[J].沈阳建筑工程学院学报(自然科学版),2005,21(2):111-113. |
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| 作者姓名： | 李凤起 姚建平 赵冬生 陈耕野 |
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| 作者单位： | [1]东北大学基建管理处,辽宁沈阳110004 [2]中国铁道科学研究院铁道研究所,北京100081 [3]东北大学资源与土木工程学院,辽宁沈阳110004 |
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| 基金项目： | 国家自然科学基金项目(50204003) |
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| 摘 要： | 目的 针对宁夏某高速公路采用强夯法处理湿陷性黄土地基，需要消除黄土湿陷性，保证压实度设计要求．方法 采用粉煤灰石灰二灰土来处理湿陷性黄土地基，即在湿陷性黄土里掺入适量的粉煤灰、石灰以及亚硫酸钠早强剂来处理湿陷性黄土地基．结果 经过试验黄土的湿陷系数由0．074下降到0．006。结论 使湿陷性黄土改变成了非湿陷性黄土，能够满足工程对地基土的要求．
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| 关 键 词： | 黄土湿陷性 粉煤灰 石灰 试验 湿陷性黄土地基 混合料 强夯法处理 高速公路 设计要求 亚硫酸钠 湿陷系数 压实度 二灰土 早强剂 地基土 工程 |
| 文章编号： | 1671-2021(2005)02-0111-03 |
| 修稿时间： | 2004年10月22 |
The Experimental Study of Loess Collapsibility and Mixture of Fly Ash of Loess and Lime |
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| LI Feng-qi,YAO Jian-ping,ZHAO Dong-sheng,CHEN Geng-ye.The Experimental Study of Loess Collapsibility and Mixture of Fly Ash of Loess and Lime[J].Journal of Shenyang Archit Civil Eng Univ: Nat Sci,2005,21(2):111-113. |
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| Authors: | LI Feng-qi YAO Jian-ping ZHAO Dong-sheng CHEN Geng-ye |
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| Affiliation: | LI Feng-qi~1,YAO Jian-ping~2,ZHAO Dong-sheng~1,CHEN Geng-ye~3 |
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| Abstract: | This paper intended to adopt dynamic compaction method to deal with the collapse loess ground of some expressways in Ningxia,and dispelled the loess collapsibility to ensure the degree of compaction could reach design requirements.The method was to adopt two lime soil of fly ash-lime to deal with the collapse loess ground,namely mixed right amount of fly ash,lime and sodium sulfite accelerator in the collapse loess to deal with the collapse loess ground.The result of the exploratory test was that the coefficient of collapsibility was dropped to 0.006 by 0.074.The conclusion was that this method changed the collapse loess to non-collapse loess;it could meet the demands for ground soil. |
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| Keywords: | collapse loess dynamic compaction method fly ash-lime coefficient of collapsibility |
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