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| Active earth pressure on cylindrical wall with
consideration of soil arching effects |
| 1.State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou， Jiangsu 221008， China； 2.Henan Province Urban and Rural Planning Design and Research Institute， Zhengzhou, Henan 450000， China |
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Abstract Assuming that the slip plane of nonviscous soil around cylindrical wall was straight line, the horizontal differential plane between slip plane and cylindrical wall was analyzed. Based on the static equilibrium condition of horizontal differential plane, the theoretical formulas for determining active earth pressure against cylindrical wall were deduced and compared with experimental results with considerations of wallsoil friction angle, radius of cylindrical wall and tangential stress coefficient. The results show that the active earth pressure against wall is related to cylindrical wall radius, wallsoil friction angle and tangential stress coefficient. The active earth pressure increases with the increasing of wallsoil friction angle and cylindrical wall radius and decreases with the increasing of tangential stress coefficient. In order to check the accuracy of the proposed formulas, the predictions from the equation were compared with both existing model test results and values from existing equations. The comparisons between calculated and measured values show that the results from the proposed formulas are consistent with the results of model test.
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2015, Vol. 36 
