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Contiguous piling outputs

3 replies [Last post]
Fri, 2005-06-24 03:18
Hervé de Trogoff
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Joined: 22 Jun 2005
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Good morning all,

I am after some very specific piling output rates (in hrs per pile per rig), and was wondering whether anyone has data on the following:

- Type of pile: contiguous bored piling
- Dimensions: 1000mm Dia x 15.0m Length
- Methodology: rotary bored pile in cohesive soil (no stell casing)

I couldn’t quite find this info on the production rates available on the web site.

Any clue or historical data close to the above specs would help! Many thanks.

Hervé
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Replies

Tue, 2005-06-28 23:22
#1
Zhang Haixiang
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Joined: 14 Apr 2005
Posts: 250
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1 pile(800 dia, 40m )/24 hr in very poor soil ,mud protected ( fill mud in the hole to protect it from collapse)
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Tue, 2005-06-28 11:29
#2
Hervé de Trogoff
User offline. Last seen 16 years 1 day ago. Offline
Joined: 22 Jun 2005
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Thanks Bill for the insight information. I also spent a few years in the Guinean Golf and what’s for sure is that down times of 30 % are not unusual there!

I am awaiting soil investigations to refine estimate outputs.

Hervé
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Fri, 2005-06-24 05:21
#3
Bill Guthrie
User offline. Last seen 8 years 42 weeks ago. Offline
Joined: 14 Mar 2005
Posts: 262
Groups: Petro-Chem / Oil & Gas
Dear Herve

Many varables here.
type of soil,etc.etc.
availability of equipment. spares, back up rig.

Drilled 470 15lmpiles in Nigeria a few years back, and avg
3 15lm piles a day. however over a week, productivity dropped due to the 30% down time for equipment.Concrete piles are based on estruding pumped concrete and a specific pressure must be maintained when injection of concrete otherwise one must abandon hole and redo due to voids left in the pile.
therefore, need a spare drilling rig on standby and spare concrete pump on standby to maintain 3pd per week.

This will not help you much but it was a fact I had to live with on the project.
cheers bill
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