全风化安山岩膨胀性试验及路基设计研究
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摘要
采用室内原位膨胀性试验,对辽沈地区全风化安山岩进行试验研究,其结果表明,全风化安山岩路基不能达到铁路设计规范标准,未经处理的风化安山岩填料不能直接用于路基填筑。在此基础上,结合全风化安山岩的工程特性,对路堑和路堤的结构形式进行合理化设计,能有效治理膨胀土路基病害。最后,对于特殊地质状况路段采取针对性路基补强措施。
The indoor in-situ expansion test was used to conduct study on the fully weathered andesite in Liaoning area. The results show that the fully weathered andesite subgrade can not meet the standards for railway design in China,and the untreated weathered andesite fillings can not be directly used for subgrade filling. On this basis,combined with the engineering characteristics of the fully weathered andesite,the structural forms of the cutting and embankment are rationally designed to effectively treat the expansive soil subgrade diseases. Finally,specific subgrade reinforcement measures are taken for special geological conditions.
The indoor in-situ expansion test was used to conduct study on the fully weathered andesite in Liaoning area. The results show that the fully weathered andesite subgrade can not meet the standards for railway design in China,and the untreated weathered andesite fillings can not be directly used for subgrade filling. On this basis,combined with the engineering characteristics of the fully weathered andesite,the structural forms of the cutting and embankment are rationally designed to effectively treat the expansive soil subgrade diseases. Finally,specific subgrade reinforcement measures are taken for special geological conditions.
引文
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[5]张广丰.干旱区高速铁路膨胀性泥岩路基处理措施研究[J].铁道工程学报,2016,33(10):45-48.
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[7]于天光,张凯,周生展,等.砂砾改良膨胀土路基施工技术[J].施工技术,2014,43(5):97-99.
[8]杜翔斌.铁路膨胀土路基填筑试验研究[J].铁道工程学报,2007,24(5):33-37.
[9]周建明.西合铁路增建二线膨胀土特性及路基设计[J].资源环境与工程,2016,30(2):222-225.
[10]田世宽,张海波.某高速公路膨胀土路基病害分析及处治措施[J].施工技术,2014,43(17):119-122.
[2]余飞,陈善雄,许锡昌,等.合肥地区膨胀土路基处置深度问题探讨[J].岩土力学,2006,27(11):1963-1966,1973.
[3]何斌,刘平.长荆铁路膨胀土路基施工技术[J].铁道建筑,2005(4):50-51.
[4]刘汝明.云南昭通膨胀土工程地质特征及路基处理[J].中国地质灾害与防治学报,2006,17(2):23-27.
[5]张广丰.干旱区高速铁路膨胀性泥岩路基处理措施研究[J].铁道工程学报,2016,33(10):45-48.
[6]张湧,谢宝玉,郝中海.膨胀土路基处理技术研究[J].公路,2001(7):58-61.
[7]于天光,张凯,周生展,等.砂砾改良膨胀土路基施工技术[J].施工技术,2014,43(5):97-99.
[8]杜翔斌.铁路膨胀土路基填筑试验研究[J].铁道工程学报,2007,24(5):33-37.
[9]周建明.西合铁路增建二线膨胀土特性及路基设计[J].资源环境与工程,2016,30(2):222-225.
[10]田世宽,张海波.某高速公路膨胀土路基病害分析及处治措施[J].施工技术,2014,43(17):119-122.