地下输煤廊道土压力计算方法分析
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摘要
火力发电厂的地下输煤廊道在计算分析时,确定作用在廊道上的土压力荷载大小及其分布规律是设计的关键。作用在地下结构的土压力根据其埋藏条件可选择与之相应的荷载计算理论,如土质松软浅埋时可忽略土的抗剪承载力,竖向土压力可简化为对应厚度土层的重量,土层厚度较大时可根据具体情况采用太沙基理论或普氏压力拱理论。根据廊道的埋藏条件,通过分析各理论使用条件,结合公路、铁路等相关规范,将廊道土压力计算方法按工程条件归类,供工程设计借鉴。
In the structure analysis of the Underground Coal Handling Gallery of the thermal power plant, to determine the load of earth pressure acting on the Gallery is the key to the design.and its distribution law is also equally important. Load of earth pressure acting on the underground structures can choose the calculation theory according to their burial conditions. Shear force can be ignored in the soft soil and shallow soil, in this case,vertical earth pressure can be simplified to the weight of the soil above. When the overlaying Soil be thicker, the vertical earth pressure can be adopted according to the specific circumstances of the the the Terzaghi theory or Platts pressure arch theory. According to the burial conditions of the Gallery, through the analysis of the conditions of different theory, and the other related specifications, earth pressure calculation method classified for engineering design.
In the structure analysis of the Underground Coal Handling Gallery of the thermal power plant, to determine the load of earth pressure acting on the Gallery is the key to the design.and its distribution law is also equally important. Load of earth pressure acting on the underground structures can choose the calculation theory according to their burial conditions. Shear force can be ignored in the soft soil and shallow soil, in this case,vertical earth pressure can be simplified to the weight of the soil above. When the overlaying Soil be thicker, the vertical earth pressure can be adopted according to the specific circumstances of the the the Terzaghi theory or Platts pressure arch theory. According to the burial conditions of the Gallery, through the analysis of the conditions of different theory, and the other related specifications, earth pressure calculation method classified for engineering design.
引文
[1]GB50007-2011,建筑地基基础设计规范[S].
[2]JTG D70-2004,公路隧道设计规范[S].
[3]TB10003-2005,铁路隧道设计规范[S].
[4]朱汉华,尚岳全,等.公路隧道设计与施工新法[M].北京:人民交通出版社,2002.
[5]卢廷浩.土力学[M].南京:河海大学出版社,2011.
[6]重庆建筑工程学院,等.岩石地下建筑结构[M].上海:同济大学出版社,2004.
[7]宋玉香,贾晓云,朱永全.地铁隧道竖向土压力荷载的计算研究[J].岩土力学,2007,28(10).
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[2]JTG D70-2004,公路隧道设计规范[S].
[3]TB10003-2005,铁路隧道设计规范[S].
[4]朱汉华,尚岳全,等.公路隧道设计与施工新法[M].北京:人民交通出版社,2002.
[5]卢廷浩.土力学[M].南京:河海大学出版社,2011.
[6]重庆建筑工程学院,等.岩石地下建筑结构[M].上海:同济大学出版社,2004.
[7]宋玉香,贾晓云,朱永全.地铁隧道竖向土压力荷载的计算研究[J].岩土力学,2007,28(10).
[8]高大钊.地下结构物侧土压力的分布[J].施工技术,2003,32(9).