The Safety of Rigid Retaining Wall Construction with Horizontal Dynamic Loads Using Dynamic Analysis

The collapse of the retaining wall construction is generally caused by the carrying capacity of the construction is exceeded by the working load. Construction can collapse due to lateral and static ground pressure or dynamic which exceeds its bearing capacity. As a result, construction can be overturning, sliding, bearing capacity failure on the base and can even be overall stability failure.

In this study the role of soil mechanical parameters was developed in the form of landslide. Horizontal dynamic load is provided with a dynamic load variation. Equivalent static analysis is used to calculate the stability of the construction of the retaining wall.

The results of the study can show the form of landslide behind the retaining wall is affected by the relative density of sand, friction angle parameters and dynamic loads. The pattern of ground grain movement behind the construction of a gravity retaining wall shows a trend in polynomial equations. The role of the vibration frequency is more dominant influence on the maximum dynamic acceleration compared to the vibration amplitude. The increase in maximum dynamic acceleration causes a decrease in the safety factor of sliding failure along its base.

However, this study has not fully explained whether the horizontal dynamic load vibrating time contributes to the shape of the landslide behind the construction. This study is a preliminary study that is expected to provide new insights on the dynamic load vibration time variable to the safety factor of the retaining wall construction. It is necessary to consider further in the planning of gravity retaining wall construction in resisting horizontal dynamic loads, namely the role of the dynamic load vibration time parameters.