Subgrade surfaces from corridor

What is the best/easiest way to make a tin surface from a corridor where the corridor has a vertical wall.

Such as a simple road cross section where I want the subgrade of the road, but finish grade of the ditch/sidewalk/whatever.

Since tin surfaces can't do true vertical walls, I can't see a way to just generate a surface using the corridor surfaces panel.

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u/bluppitybloop — 6 days ago

Explain grid/ground to me

None of this really matters in my use-case but I'm utterly curious based on all the discussions here about grid and ground coordinates.

I often use a mix of Trimble site works and cad software to build site designs to then move over to machine control for various different site preps.

If I setup a project in a published coordinate system, my understanding is that siteworks uses that crs to determine the scale factor in my specific location.

So if I take two topo shots, let's say at the exact same elevation to remove any question of height differences. And I then go into cogo and measure the distance between two points, is the resulting measurement the software spits out going to be grid distance or ground distance?

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u/bluppitybloop — 23 days ago

Soil moisture content question

Help a dumb operator out.

In civil infrastructure earthworks, specific moisture content in expansive soils are often strictly enforced. Leading to constant testing, and drying out of fill material.

My question is how much physical volume is lost when we have to dry some clay from say 25% to meet a maximum moisture content of 20% (random numbers).

Is it as simple as saying we lost 5% volume because we dropped the moisture content 5%?

I can't imagine it's that easy.

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u/bluppitybloop — 28 days ago

D5 Ripping Frost?

Curious on the abilities of a next gen d5 (or D6N) when it comes to ripping frost.

We own an lgp model that's used for site development and some moderate dirt pushing here and there.

It has no ripper, but I'm curious how well it can rip frost with a standard three shank parallelogram ripper. both with 3 shanks, and down to a single shank, with frost cleats if course.

Will it handle 8-12 inches? The entire shank? Or would it be completely useless?

u/bluppitybloop — 1 month ago