Excavating Unexpected Rock Backfill

8:20

16:42

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Well that sucked

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What happens here

During the continued demolition of the old retaining wall, the Daewoo 75V excavator unexpectedly uncovers a substantial and dense layer of rock backfill behind the existing structure. This rock extends several feet deep into the ground, indicating a more robust but improperly constructed original foundation than anticipated. The excavator, utilizing its specialized hydraulic clamp/grapple attachment, is then used to dig out and remove this heavy and compacted rock backfill. The ASV VT-70 Positrack skid steer loader works in conjunction, positioned to receive the excavated rock and transport it away from the demolition area. This discovery significantly alters the demolition strategy, shifting the focus from simple block removal to heavy rock excavation.

Goal: Remove dense rock backfill that was unexpectedly found behind the old retaining wall.

Tools and materials

Daewoo 75V excavator Daewoo — Excavating dense rock backfill
Rock backfill — Unexpected material to be removed

What they say

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ground all right so we're tearing into this wall getting it torn out but but but they got like I don't know how much like right F 3 four fet of rock just as backfill there's no there's no no dirt as backfill it's just Solid Rock Solid Rock all the blocks are core fied but then you got 3/4 on the back side rock back fi like that is awesome whoever built that wall although I don't see geogrid at least they use good back fill if that entire thing is full of rock it you just can't beat it but take a look at the Block they used there's not a single pin in that block and I learned long ago if you want two things to stick together put a screw or a nail in it and these blocks are not pinned yeah there is literally so much Rock we are digging it out with a skid loader it's like we hit dirt over here

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