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fonçage

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10:39 Dec 31, 2010
French to English translations [PRO]
Tech/Engineering - Construction / Civil Engineering / Trenchless Techniques for underground pipelines
French term or phrase: fonçage
I'm translating a document on Trenchless techniques for the installation underground pipelines.

You'd be surprised how much confusion is exists concerning these terms so please be vigilent with you replies and if possible try to answer all the terms (which will be asked separately)

Here's the text I have to resolve, but I haven't found broad consensus on the specific English (UK) terms. I do have a pretty good idea what there are but would like confirmation. I'd rather not expose my ideas so as not to unduly influence anyone.


Il existe quatre techniques de fonçage :

- le fonçage par fusée pneumatique,
- le fonçage par battage,
- le fonçage par rotation (ou à la tarière),
- le fonçage par poussée.
Richard Hedger
Switzerland
Local time: 13:46
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Summary of answers provided
5boring
kashew
4trenchless pipelayingxxxBourth
3driving/sinking
narasimha
Summary of reference entries provided
thrust-boring
mohanv

  

Answers


2 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5
driving/sinking


Explanation:
The most recent methods being used to install conduits under roadways, pipe ramming, microtunneling, and horizontal directional drilling. This is done either by: pneumatic spindle, pile driving, by rotation (drilling) (or by auger), by thrusting using force.

narasimha
India
Local time: 18:16
Meets criteria
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 150

Peer comments on this answer (and responses from the answerer)
neutral  kashew: Sinking seems ok for vertical work (pits) but I don't go with driving - boring is the word.
1 hr
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3 hrs   confidence: Answerer confidence 5/5
boring


Explanation:
* QED

kashew
France
Local time: 13:46
Meets criteria
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 509
Notes to answerer
Asker: Thanks but I'm not yet convinced, athough I suspect that thrust-boring might be the answer. TERMIUM translates boring back into French as "forage" and not fonçage which is it has translated as pipe ramming.

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2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
trenchless pipelaying


Explanation:
No-dig pipelaying.

Otherwise you have to break it down into thrust boring, pipe jacking/ramming, etc.

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Note added at 3 hrs (2010-12-31 14:33:07 GMT)
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True, Richard, it could also cover HDD. By the same token, HAB is hardly fonçage either, and neither is battage or even impact moling. It may suit your author to use fonçage to cover a variety of technologies, but the term is hardly appropriate.
For pile driving, for instance, you have battage for impact driving and fonçage for when piles are pushed rather than hammered into the ground.

How about "microtunnelling" (though that might also cover small TBMs).

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Note added at 4 hrs (2010-12-31 14:53:32 GMT)
--------------------------------------------------

Using the UKSTT definitions, I would propose the following correspondences for your specific terms.

AUGER BORING Method of forming a bore, usually from a drive pit, by means of a rotating cutting head. Spoil is removed back to the drive pit by helically wound auger flights rotating in a steel casing. The equipment may have limited steering capability.
le fonçage par rotation (ou à la tarière)
EARTH PIERCING Term commonly used in North America as an alternative to Impact Moling.
(pneumatic) IMPACT MOLING Method of creating a bore using a PNEUMATIC OR HYDRAULIC HAMMER within a casing, generally of torpedo shape. The term is usually associated with non- steered or limited steering devices without rigid attachment to the launch pit, relying upon the resistance of the ground for forward movement. During the operation the soil is displaced, not removed. An unsupported bore may be formed in suitable ground, or a pipe drawn in or pushed in behind the impact moling tool. Cables may also be drawn in.
le fonçage par fusée pneumatique
IMPACT RAMMING See PIPE RAMMING
le fonçage par battage
MICROTUNNELLING Method of steerable remote control pipe jacking to install pipes of internal diameter less than that permissible for man-entry. In North America the term is used to describe remote control continuous pipe jacking in all diameters.
PIPE JACKING Method for directly installing pipes behind a shield machine by hydraulic or other jacking from a drive shaft such that the pipes form a continuous string in the ground.
PIPE RAMMING Non-steerable method of forming a bore by driving a steel casing, usually open-ended, with a percussive hammer from a drive pit. The soil may be removed by augering, jetting or compressed air. In appropriate ground conditions a closed casing may be used.
le fonçage par battage
ROD PUSHING Method of forming a pilot bore by driving a closed pipe head with rigid attachment from a launch pit into the soil which is displaced. Limited steering and monitoring capability may be provided, usually in conjunction with a locator.
le fonçage par poussée
THRUST BORING Unpreferred term, loosely applied to various trenchless installation methods. See Rod Pushing.
THRUST JACKING METHOD Method in which a pipe is jacked through the ground without mechanical excavation of material from the front of the pipeline.
le fonçage par poussée



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Note added at 4 hrs (2010-12-31 14:54:18 GMT)
--------------------------------------------------

Not immediately clear, I'm afraid, but the French in bold matches the term ABOVE it.

xxxBourth
Local time: 13:46
Meets criteria
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4135
Notes to answerer
Asker: Thanks, but isn't "trenchless pipelaying is too broad a term" as it encompasses "direction drilling" which is "forage" as opposed to "fonçage", no?

Asker: sorry, I meant "directional drilling".


Peer comments on this answer (and responses from the answerer)
neutral  kashew: would not "boring" be enough here?
11 mins
  -> "Boring" can be (vertical) drilling.
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The asker has declined this answer




Reference comments


1 hr
Reference: thrust-boring

Reference information:
thrust-boring

http://www.proz.com/kudoz/english_to_french/tech_engineering...

http://www.proz.com/kudoz/french_to_english/engineering_gene...

mohanv
India
Does not meet criteria
Specializes in field
Native speaker of: Native in TamilTamil
PRO pts in category: 56
Note to reference poster
Asker: Thanks for the references. I think the jury is still out on one of them. Are you sure that thrust-boring is the umbrella term the regroup the various techniques? Is pipe-jacking synonymous? The reference here states that thrust-boring is not a preferred term, but I don't know why - http://www.ukstt.org.uk/glossary/

Asker: Can I take the "loosely applied to various trenchless installtion method" as signifying the umbrella term or is it just a misused term?

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