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Stesso

Implementing Bridging Soil Correction with Riprap

0:54
14:48
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At 0:54 in

Retaining wall BASE failure

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What happens here

Given the soil conditions, the team decides on a bridging soil correction. They plan to use approximately 1 foot of 3-inch riprap rock as the base, followed by 6 inches of 3/4-inch aggregate. The team begins hand-digging the problematic section because using the mini excavator (Bobcat 331) in this area could cause the existing bank to collapse, posing a safety risk. This small section, about 4-5 feet wide, is particularly critical due to poor drainage and downspout runoff from the house that has turned the soil into 'soup' over the years.

Goal: Stabilize the unstable soil using bridging soil correction with specified rock layers.

Tools and materials

  • Aggregate — Layered above the riprap for further stability
  • Excavator Bobcat 331 — Used for other parts of the site but avoided in this unstable section
  • Riprap — Creating a stable base layer for bridging soil correction
  • Shovels — Manual excavation of soil

What they say

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worse to really bad and then we get that all fixed and repaired and then things go pretty smooth and then they get bad again this is uh first job of the Year kind of second we did one in what March and then we had another little blast of winter we're coming off this wall here 15 ft then the stairs and then the stairs and then it will come back out

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