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工程力学  2013 

公路工程路堤临界填土高度一种计算方法研究

DOI: 10.6052/j.issn.1000-4750.2012.03.0180, PP. 142-146

Keywords: 公路工程,弗拉曼公式,统一强度理论,路堤临界填土高度,静止侧压力系数

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Abstract:

路堤临界填土高度是公路工程中一个非常重要的问题,填筑高度小于临界填土高度时,地基的变形和稳定能得到控制。依据极坐标表示的弗拉曼公式和统一强度理论,考虑中间主应力σ2对地基承载力的影响,推导出土的静止侧压力系数K0≠1条件下地基的临塑与临界荷载公式,提出路堤临界填土高度一种计算方法。结合算例,对中间主剪应力系数b和土的静止侧压力系数K0取不同值时,临界荷载与路堤临界填土高度计算结果进行了对比分析,结果表明:基于统一强度理论得到的计算方法能确切地反映地基承载力的实质,使地基土体强度得到充分的发挥。

References

[1]  江国勤, 管同心, 徐永福. 天然软土地基土路堤临界高度分析 [J]. (路基工程), 2011(2): 47―49.Jiang Guoqin, Guan Tongxin, Xu Yongfu. Analysis on critical height of embankment on natural soft foundation [J]. Subgrade Engineering, 2011(2): 47―49. (in Chinese)
[2]  俞茂宏. 岩土类材料的统一强度理论及其应用[J]. (岩土工程学报), 1994, 16(2): 1―10.Yu Maohong. Unified strength theory for geomaterials and its application [J]. Chinese Journal of Geotechnical Engineering, 1994, 16(2): 1―10. (in Chinese)
[3]  范文, 林永亮, 秦玉虎. 基于统一强度理论的地基临界荷载公式[J]. (长安大学学报), 2003, 25(3): 48―51.Fan Wen, Lin Yongliang, Qin Yuhu. Formula for critical load of foundation based on the unified strength theory [J]. Journal of Chang’an University, 2003, 25(3): 48―51. (in Chinese)
[4]  王祥秋, 杨林德, 高文华. 基于双剪统一强度理论的条形地基承载力计算[J]. (土木工程学报), 2006, 39(1): 79―82.Wang Xiangqiu, Yang Linde, Gao Wenhua. Calculation of bearing capacity about the strip foundation based on the twin shear unified strength theory [J]. China Civil Engineering Journal, 2006, 39(1): 79―82. (in Chinese)
[5]  袁聚云,钱建固,张宏鸣,梁发云. 土质学与土力学 [M]. 北京: 人民交通出版社, 2009: 75―76Yuan Juyun,Qian Jiangu,Zhang Hongming,Liang Fayun. Soil properties and soil mechanics [M]. Beijing: China Communications Press, 2009: 75―76(in Chinese)
[6]  程彩霞, 赵均海, 魏雪英. 统一滑移线与有限元求解路基极限荷载[J]. (工程力学), 2006, 23(8): 150―154.Cheng Caixia, Zhao Junhai, Wei Xueying. Bearing capacity of roadbed by unified slip line field method and finite element method [J]. Engineering Mechanics, 2006, 23(8): 150―154. (in Chinese)
[7]  童怀峰, 郭院成. 基于统一强度理论的路基临界填土高度计算分析[J]. 公路, 2007(11): 90―93.Tong Huaifeng, Guo Yuancheng. Calculation and analysis of critical filling height of roadbed based on unified strength theory [J]. Highway, 2007(11): 90―93. (in Chinese)
[8]  Leroueil S, Magnan J P, Tavenas F. Embankments on soft clays [M]. New York: Ellis Horwood Limited, 1990: 150―179.
[9]  Leroueil S, Tavenas F, Roy M. Construction pore pressures in clay foundations under embankments. Part I: The Saint-Alban test fills [J]. Canadian Geotechnical Engineering, 1978, 15: 54―65.
[10]  Leroueil S, Tavernas F. Construction pore pressures in clay foundations under embankments. Part II: Generalized behaviour [J]. Canadian Geotechnical Engineering, 1978, 15: 66―82.
[11]  Naughton P J. The significance of critical height in the design of piled embankments [C]// Proceedings of Sessions of Geo-Denver 2007 Congress: Soil Improvement. Reston United States: America Society of Civil Engineers, 2007.
[12]  Wei L M,Niu J D,Huo H J. Effect of reinforced sand cushion on the limit fill height of embankment on soft clay foundation [C]// Proceedings of Asian Regional of Conference on Geosynthetics. Shanghai,China:Zhejiang University Press, 2009.
[13]  Mihael P McGuire. Critical height and surface deformation of column-supported embankments [DB]. http://scholar.lib.vt.edu/theses/available/etd-11142011-113910/, 2011.
[14]  王铁行, 窦明健, 胡长顺. 多年冻土地区路基临界高度研究[J]. (土木工程学报), 2003, 36(4): 94―98.Wang Tiehang, Dou Mingjian, Hu Changshun. Study on critical thickness of subgrade in permafrost area [J]. China Civil Engineering Journal, 2003, 36(4): 94―98. (in Chinese)

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