Designing a retaining wall involves more than just choosing the right type. Here are some things you need to consider before designing and building a retaining wall:
Soil Analysis
One of the most critical aspects of retaining wall design is understanding the soil you’ll be working with. Soil type and soil pressure, including active, at-rest, and passive pressure can greatly influence the wall’s stability, as different soils have varying levels of strength, drainage capacity, and susceptibility to erosion. For instance, clay soils tend to retain water and expand, which can increase the pressure on the wall, while sandy soils drain well but may not provide as much support. Engineers often use the Rankine or Coulomb theories to calculate earth pressure coefficients, which help in designing walls that can resist these forces.
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