A new formula of loess earth pressures based on the joint strength theory

作者：Sun, P.; Li, R. -J.^*; Igwe, O.; Luo, H.

来源：Bulgarian Chemical Communications, 2017, 49: 78-82.

• loess
• tensile strength
• joint strength formula
• active earth pressure
• passive earth pressure

Because the effect of tensile strength on the calculation of the earth pressure of loess is worthy of further evaluation, based on the joint strength theory that fully considers tensile and shear properties of loess, this paper first analyzes active and passive limit stress equilibrium, then derives new calculation formulae for active and passive earth pressures, and finally verifies these new formulae and compares them with Rankine's classical formulae for active and passive earth pressures. The results show that the active earth pressure of loess based on the joint strength theory is larger than the Rankine's active earth pressure; the passive earth pressure of loess based on the joint strength theory is smaller than the Rankine's passive earth pressure.

• 出版日期2017
• 单位西安理工大学; 中国地质科学院地质力学研究所