Raked Pile Set-out

Not clear to me what raked Pile Set-out means exactly ...

but in the stake out menu you can choose to stake points, lines, arcs, alignments and DTM's.

I suppose you're piles are just points? You can key in these points or load them from another job-file or an ascii file [Jobs - Properties of Job - Linked Files] or you can import a dxf with your stake data [Jobs - Properties of Job - Active Map]

Once you did a station setup you can start from the stake menu or start from your map screen by selecting and staking.

Link to Trimble Survey Controller Documentation

Hope this helps,

chr.

If I understand your question, you're talking about shoring piles that are installed at an angle rather than vertical. I've heard them referred to as battered piles.

I've only layed out piles like this once. I approached it like I was catching a slope. I would find the location on the ground where the face of the battered pile intersects the existing ground and set a nail there. Also, give an offset to your catch point.

The shoring contractor can set up his drill rig to the specified angle and start drilling at your nail. If they're putting in a steel soldier beam in the hole, they can make a jig with a four foot level to make sure it goes in with the correct batter.

I hope this is what you were asking about.

Jeff

You could also create points with the coordinates and elevations of the tops and bottoms, then do a "stake out line" based on those points. 0 cut and 0 offsets would be the spot on the ground.

Battered piles is the same thing, but it's over water so no access.

The problem is setting out the center of a 600mm diameter pile. I have to observe both "edges" of the pile and then turn to the half-angle and apply a 300mm prism constant. This is very messy and slow, the barge holding the pile moves in the waves/wind so by the time I've done my observations they are almost redundant.

To be really accurate the 300mm (half of pile diameter) prism constant is incorrect if the pile is on a rake (battered).

I have already asked my Trimble supplier and they said there was no pile set out program in Survey Controller. I think there may be one in Trimble Access but it's been a while since I looked at it.

Thanks for the comments.

Are they battered piles for piers such as supporting an elevated roadway? Why are they battered in the water? Are they precast, cast in place, concrete, metal,? If you have many to stake, sounds like you may have to pre-fabricate some type of support system on the barge or barges that is already set to the batter required. Anchor the barges to a sunken dead-man and winch into position.

No such option in Access!

chr.

I located some mooring cells above Ky. Dam a few years ago like that, but they weren't battered. They set a template first to use to guide the piling, I had to locate the center of the template. Had a prism on the front of the barge, I was about a half mile upstream on a rock outcrop with a total station and a radio to the boat pilot. Had to get him close, let him drop his spuds, then recheck and move until he got it right. Hard to do in river current. Plus it was snowing and blowing directly in my face.

About 35 years ago I laid out a ship dock in the Houston Ship Channel that used multiple battered (and vertical) piles. We laid out a template on sheet steel on shore and then placed it on a framework attached to temporary piles. A jig was built to match the batter(s) of the piles and was tackwelded to the plates so the piles could be driven. I'll see if I can find the old photos around here somewhere.

Andy

That's pretty close to how I'm doing it. But it's wind and waves moving the barge, and it's not snowing.

Thanks

Batter piles on water are challenging, when free driving with no frame. 

MY METHOD:

When driving a 600mm pile and you have the center points...

at a 3 to 1 (draw out in cad and measure is easiest) the points are off set vertically. Should be around 474mm (you could just add this to the rod height. 

This will give you dead center top face of the pipe. The should be using a lead on the crane, get them to place the end of the pipe on sea floor to minimize bouncing when measing. Use a jig (2×6) taped to a level for the angle and gps or total station for position And line alignment .

Most of the time the pile should be with in 2-3 inches but in challenging cases under 6 inches should be easily accepted by the client. Pull the top of pill in to correct position before bracing. Hahaha  

Wow, thats a blast from the past, 2011.  I figured I had responded, looks like twice.

@eddycreek A blast from the past indeed!  I just rode a river cruise boat through the lock at Kentucky Dam a week or so ago.  Fun trip!  And now I know what the barge mooring facilities are called -- mooring cells.  The more you know!  (No fancy @Dougie GIF from me....)