›› 2014, Vol. 35 ›› Issue (S1): 245-250.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Calculation of passive earth pressures on retaining wall considering soil arching effects of backfill clayey soil

ZHOU Xiao-long1，MA Kang2，QIAN Ming3，LIU De-wen4，ZHAO Qi5   

  1. 1. Institute of Urban Construction, Hangzhou College of Scientific Professional Technology, Hangzhou 311402, China; 2. Department of Civil Engineering, Xiamen University, Xiamen, Fujian 361005, China; 3. Geotechnical Engineering Branch of CPECC, Qingdao, Shangdong 266071, China; 4. College of Civil Engineering, Southwest Forestry University, Kunming 650224, China; 5. College of Architecture Engineering, North China University of Technology, Beijing 100144, China
  • Received:2013-11-27 Online:2014-06-10 Published:2014-06-20

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Abstract: The nonlinear phenomenon which the passive earth pressure behind the retaining wall of both sand and cohesive soil is nonlinear distribution could be explained by the soil arching effect theory. The formula which calculated passive earth pressure coefficient of which assumed the stress state method and the soil wedge static equilibrium method were derived considering the soil arching effect, assumed arch as circle and the angle of slip surface as Rankine’s theory. Then, the distribution of lateral earth pressure considering the soil arching was derived by the above formulations; also the formulas that calculating the magnitude and the point of application of lateral passive earth pressure were derived. The accuracy of proposed method is confirmed by comparing with the experimental tests and values from existing equations. Finally, the trends of distribution and the height of total passive earth pressure of clayey soil are studied; distribution of passive earth pressures considering the soil arching is likely an exponential curve; and the height of resultant earth pressure point is gradually reducing with increasing the ratio of soil-wall friction angle to internal angle δ/φ.

Key words: retaining wall, passive earth pressure, soil arching effect, stress state method, static equilibrium method

CLC Number: 

  • TU 47
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