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Demolition and Trench Excavation with Material Handling

0:32
14:14
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At 0:32 in

Double Terraced Retaining wall crashes down pt2

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What happens here

This crucial phase involves the systematic demolition of the existing, collapsed double-terraced retaining wall and the comprehensive excavation of a new trench. A Bobcat T325 mini excavator is deployed for precision digging and breaking down old wall sections, while a Cat skid steer efficiently moves and sorts the excavated material. Old retaining wall blocks are separated from the soil for disposal or potential reuse. The operator carefully avoids over-digging the trench to maintain soil integrity. In some instances, old blocks are cut using a concrete saw (Stihl TS 420) to facilitate their removal and disposal, ensuring efficient site clearance. Throughout this step, safety equipment such as safety glasses, hearing protection, and work gloves are worn.

Goal: Clear the site of the old retaining wall and excavate a precise trench for the new wall's foundation.

Tools and materials

  • Bobcat T325 Mini Excavator Bobcat — Digging, breaking down old wall sections, and precise trenching
  • Cat Skid Steer Cat — Moving excavated soil and old blocks, and sorting materials
  • Concrete Saw — Cutting old retaining wall blocks for easier removal and disposal
  • Hearing Protection Generic — Ear protection when using loud machinery
  • Safety Glasses Generic — Eye protection during cutting and operating machinery
  • Work Gloves Generic — Hand protection
  • Excavated Soil N/A — Soil removed from the trench
  • Old Retaining Wall Blocks Unbranded — Material to be removed and disposed of

What they say

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the new one during the excavation it's important not to over dig any more than you have to [Music] any blots we come across it sorted away from the backfill soil in a perfect world we'd want to dig right down to the elevation that we want the bare dirt to that way it has it hasn't been disturbed but even when we do that we've still got a compact it it doesn't matter if we do it perfect or not it doesn't hurt to hit it once over with a small plate Packer to make sure that you have no unsettled soils in that trench they also start dismantling the upper wall you'll see us dumping these materials into the bucket of our cat skid loader we don't have to Holloway the excavation spoils but we don't want them anywhere near the trench while we're trying to establish our base

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