依据Chadeisson(查德森)法计算水平反力系数
依据Chadeisson(查德森)法计算水平反力系数
R. Chadeisson (1961) 和 A. Monnet (1994) 根据监测得到的不同岩土体中基坑支护结构位移,以及计算得到的达到被动土压力时结构的位移量,推导出了计算土的水平反力系数的表达式:
其中: | EI | - | 支挡结构抗弯刚度 [kNm2/m] |
γ | - | 土的容重 [kN/m3] | |
Kp | - | 被动土压力系数 [-] | |
K0 | - | 静止土压力系数 [-] | |
c´ | - | 有效粘聚力 [kPa] | |
Ap | - | 粘聚力影响系数(取值范围为 1-15)[-] |
参考文献:
Chadeisson, R. (1961) Parois continues moulées dans le sols. Proceedings of the 5th European Conf. on Soil Mechanics and Foundation Engineering,Vol. 2. Dunod, Paris, 563-568".
K. J. Bakker, A. Bezuijen, W. Broere, E. A. Kwast: Geotechnical Aspects of Underground Construction in Soft Ground: Proceedings of the 5th International Symposium TC28. Amsterdam, the Netherlands, 15-17 June 2005. CRC Press, 2013, pp. 616, ISBN: 0415889138, 9780415889131.
Monnet, A.: Module de réaction, coefficient de décompression, au sujet des paramètres utilisés dans la méthode de calcul élastoplastique, Revue française de Géotechnique, 65, 1994, pp. 67 - 72.
Mitew, M.: Numerical analysis of displacements of a diaphragm wall. Warsaw University of Technology, Poland.
N. M. ILIEŞ, T. A. HULPUȘ, A. POPA: Design of Anchored Walls: The Influence of Design Approaches and Design Methods. Technical University of Cluj Napoca, Faculty of Civil Engineering, Romania, 2010.