A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hazard Mitigation Using Broken Back Retaining Walls
During earthquakes retaining walls move due to the increased earth pressure exerted on them. A simple method to reduce this pressure is to use a leaning back slope for such walls, but doing this for the whole rear face is not only uneconomical due to the large volume of materials used, but also less efficient since the earth pressure is considerably smaller at upper parts of the wall. So a broken back wall can be an efficient and economical structure to mitigate the pressures. In order to study this behavior of broken back walls, a series of shaking table tests were carried out on such retaining walls made of concrete blocks. The results showed that after shaking the earth pressure increases in the upper portions of the wall and decreases by the backward leaning slope at lower elevations. Depending on the shape of back-face of the wall the total thrust and overturning moment would be increased or decreased during and after an earthquake. In general the broken back shape of the wall tends to raise the point of application of the total thrust exerted on the wall.
Hazard Mitigation Using Broken Back Retaining Walls
During earthquakes retaining walls move due to the increased earth pressure exerted on them. A simple method to reduce this pressure is to use a leaning back slope for such walls, but doing this for the whole rear face is not only uneconomical due to the large volume of materials used, but also less efficient since the earth pressure is considerably smaller at upper parts of the wall. So a broken back wall can be an efficient and economical structure to mitigate the pressures. In order to study this behavior of broken back walls, a series of shaking table tests were carried out on such retaining walls made of concrete blocks. The results showed that after shaking the earth pressure increases in the upper portions of the wall and decreases by the backward leaning slope at lower elevations. Depending on the shape of back-face of the wall the total thrust and overturning moment would be increased or decreased during and after an earthquake. In general the broken back shape of the wall tends to raise the point of application of the total thrust exerted on the wall.
Hazard Mitigation Using Broken Back Retaining Walls
Sadrekarimi, Abouzar (author)
Geo-Denver 2007 ; 2007 ; Denver, Colorado, United States
2007-10-14
Conference paper
Electronic Resource
English
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