一种计算地下结构地震主动土压力的新方法
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摘要
针对目前地下结构地震土压力设计方法的研究现状,介绍了计算挡土墙地震主动土压力的物部·冈部公式及浅埋隧道谢家然围岩压力理论。并结合物部·冈部公式、谢家然理论提出了一种适用于计算地下结构地震土压力的新方法。该方法基于极限平衡理论,根据谢家然理论提供的滑裂面参数构造了滑动土体,采用物部·冈部公式计算了滑动土体作用在地下结构边墙上的地震土压力。最后结合工程实例,将本文方法与其它计算方法进行了比较,评价了该计算方法的优缺点。
The development of the seismic active pressure designs of underground structures was first briefly introduced,followed by introduction of Xie theory and M-O formula.Then a new method was put forward,which combined Xie theory and M-O formula.Based on limit equilibrium theory,this method constructed sliding soil according to sliding surface parameters of Xie theory,which could also be used for calculating the seismic active pressure of underground structures through M-O formula.Finally,in one practical example,brief evaluation and analysis of this new method were given through comparing to other design methods.
The development of the seismic active pressure designs of underground structures was first briefly introduced,followed by introduction of Xie theory and M-O formula.Then a new method was put forward,which combined Xie theory and M-O formula.Based on limit equilibrium theory,this method constructed sliding soil according to sliding surface parameters of Xie theory,which could also be used for calculating the seismic active pressure of underground structures through M-O formula.Finally,in one practical example,brief evaluation and analysis of this new method were given through comparing to other design methods.
引文
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[2]GB 50111-2006,铁路工程抗震设计规范[S].
[3]SL 203-97,水工建筑物抗震设计规范[S].
[4]刘晶波,刘祥庆,李彬.地下结构抗震分析与设计的Pushover分析方法[J].土木工程学报,2008,41(4): 73-80. Liu J B,Liu X Q,Li B.A pushover analysis method for seismic analysis and design of underground structures [J].China Civil Engineering Journal,2008,41 (4):73-80.
[5]SI单位版,日本铁道构造物等设计标准及解说抗震设计[S].
[6]王贻荪,赵明华.地震土压力一般解及其工程应用[J].湖南大学学报(自然科学版),1990,17(4):76-82. Wang Y S,Zhao M H.General solution of earthquake -induced soil pressure and its engineering application [J].Journal of Hunan University(Natural Sciences), 1990,17(4):76-82.
[7]陈仲颐,王洪瑾,周景星.土力学[M].北京:清华大学出版社,1994. Cheng Z Y,Wang H J,Zhou J X.Soil Mechanics [M].Beijing:Tsinghua University Press,1994.
[8]朱永全,宋玉香.隧道工程[M].北京:中国铁道出版社,2005. Zhu Y Q,Song Y X.Tunneling Engineering[M]. Beijing:China Railway Publishing House,2005.
[9]李宏建,孙明磊,朱永全.北京地铁区间隧道施工过程三维动态数值模拟[J].石家庄铁道学院学报,2006,19 (1):30-33. Li H J,Sun M L,Zhu Y Q.Three-dimensional numerical analysis of construction process for tunnel opening of Beijing metro[J].Journal of Shijiazhuang Railway Institute,2006,19(1):30-33.
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