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Surrounding Rock Pressure Analysis of Neighbourhood Tunnel Under Unsymmetrical Pressure
Author(s): 
Pages: 430-433
Year: Issue:  3
Journal: Underground Space

Keyword:  倾斜地表 小净距隧道 偏压 围岩压力;
Abstract: 偏压小净距隧道是一种较新的隧道形式,受力状况较为复杂,目前尚没有其围岩压力的理论计算方法。为此作者对偏压小净距隧道围岩压力进行了理论探讨,得出了滑动破裂角、侧压力系数及垂直围岩压力的理论计算公式。分析了隧道间的净距对围岩压力的影响以及地面倾斜角度和净间距对隧道内侧压力系数的影响,可为类似隧道的设计提供参考。
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