| 海南东环铁路全风化花岗岩路基填料改良试验 |
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| 引用本文： | 刘祖富.海南东环铁路全风化花岗岩路基填料改良试验[J].路基工程,2010,0(3):157-158. |
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| 作者姓名： | 刘祖富 |
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| 作者单位： | 中铁二院工程集团有限责任公司工程测试中心，成都610031 |
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| 摘 要： | 海南东环铁路A，B组填料稀缺，设计填料利用路堑挖方和隧道弃方为主，但其料源60 %以上为全风化花岗岩C，D组，需进行改良才能满足工程要求。结合勘察设计，全线选取了有代表性的10组D类填料和10组C类填料进行改良研究，提出了最佳改良方案:高液限的全风化花岗岩用石灰改良，掺量为9 %；低液限全风化花岗岩用水泥改良，掺量为5 %。试验结果为设计和施工提供了依据，解决了海南东环线A，B组路基填料稀缺的重大工程问题。
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| 关 键 词： | 全风化花岗岩 路基填料 改良试验 |
| 收稿时间： | 2019-11-11 |
Improvement Test of Decomposed Granite Foundation Filling in Hainan East Ring Railway |
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| Authors: | LIU Zu-fu |
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| Affiliation: | LIU Zu-fu (Engineering Test Center of China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China) |
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| Abstract: | Hainan East Ring Railway lacks of A and B class filling material.Design fillings are mainly from excavation and tunnel discard,but above 60 % is C,D class decomposed granite,which shall be improved to satisfy engineering requirement.Combined with investigation design,10 groups of D-class filling and 10 groups of C-class filling are conducted improvement test for the whole line,and the best improvement program is put forward.Decomposed granite with high hydraulic limit shall be improved with lime,with mixing proportion of 9 % and that with low hydraulic limit shall be improved with cement,with mixing proportion of 5 %.The test result can be reference for design and construction and has settled the major engineering problem of A,B class foundation fillings scarcity for Hainan East Ring Railway. |
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| Keywords: | decomposed granite foundation fillings improvement test |
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