CHEN Jian-xu, SONG Wen-wu. Non-limit active earth pressure for retaining wall under translational motion[J]. 2019, 40(6): 2284-2292.
DOI:
CHEN Jian-xu, SONG Wen-wu. Non-limit active earth pressure for retaining wall under translational motion[J]. 2019, 40(6): 2284-2292.DOI: 10.16285/j.rsm.2018.0768.
Non-limit active earth pressure for retaining wall under translational motion
For inclined retaining walls under translational motion
the earth arch formed behind the wall is assumed arc-shaped. Nonlinear functions of displacement with internal and external friction angle
considering the interlayer shear stress
were established. The horizontal layer analysis method was used to obtain the solution of non-limit active earth pressure distribution
the total earth pressure
point of forces applied. The analytical solution and experimental values are in good agreement comparing to other methods. The results show that regardless of the inter-layer shear stress is considered or not
the magnitude of the earth pressure decreases as the wall displacement increases. The total of earth pressure does not change the magnitude but the distribution of earth pressure varies. The earth pressure considering the shear stress is less than the one in the upper part of the wall without considering the shear stress
and higher than the lower part. Shear stress acts as a hindrance to the soil
and it first increases significantly and then decreases slightly as the internal friction angle increases. Shear stress increases as the external friction angle and displacement increase. With the increase of the wall dorsal obliquity
the shear stress decreases first
then increases in the opposite direction
and the earth pressure increases accordingly. The height of the resultant force point considering the soil arching and shear stress together is between only considering the soil arching effect and the Coulomb solution.