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spherical foot staff

Spanish translation: mira/estadía estadimétrica graduada de pie esférico

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:spherical foot staff
Spanish translation:mira/estadía estadimétrica graduada de pie esférico
Entered by: Mónica Algazi

00:24 Jul 8, 2015
English to Spanish translations [PRO]
Tech/Engineering - Construction / Civil Engineering / Relevamiento
English term or phrase: spherical foot staff
Context:

Reference survey method shall be as per * spherical foot staff * of 0,5 Dn50. The Contratista shall submit his proposals for carrying out the survey to the Propietario/Ingeniero for consideration. For a land-based survey, the sphere may be connected to a staff or EDM target; for an underwater survey, it may be a weighted ball on the end of a sounding chain.

TIA!
Mónica Algazi
Uruguay
Local time: 15:50
mira/estadía estadimétrica graduada en pie/ft(0.0001 ft)
Explanation:
En topografía, una estadía o mira estadimétrica, también llamado estadal en Latinoamérica, es una regla graduada que permite mediante un nivel topográfico, medir desniveles, es decir, diferencias de altura. Con una mira, también se pueden medir distancias con métodos trigonométricos, o mediante un telémetro estadimétrico integrado dentro de un nivel topográfico, un teodolito, o bien un taquímetro.
https://es.wikipedia.org/wiki/Mira_(topografía)

A level staff, also called levelling rod, is a graduated wooden or aluminum rod, used with a levelling instrument to determine the difference in height between points or heights of points above a datum surface.
https://en.wikipedia.org/wiki/Level_staff

If the knob is turned until the cross-hair is set to an exact staff graduation the combined sum of this staff value plus the reading on the micrometer scale will give the required staff value for the pointing. With the metric model of the micrometer, readings can be made in this way to the nearest hundredth of a millimeter, as compared with the estimation to a millimeter without the micrometer. The foot model allows direct reading on its scale to 0.0001 ft. (which is the graduation interval) and estimation can be made to half an interval.
http://www.wild-heerbrugg.com/changing face.htm

The multi-beam method shows even lower levels than the conventional staff method. This is remarkable because the conventional staff is able to measure all the holes and hence the multi-beam method cannot measure lower levels. Therefore the low levels of the multi-beam method can only be explained by the acoustic disruptions causing errors [HAUER, 2000]. A different method is the survey with the bucket of a hydraulic excavator. This method is not further discussed because no literature is available on this method. BOSMA, 2001 performed research into different survey techniques as well. He investigated the difference between the conventional staff and the spherical foot system. He found that the difference in profile height is a function of the nominal stone diameter and can be written as: 0.24 +Dn50 +0.18
In this case the dimension is [cm]. Apparently he found a difference of approximately 20% of the nominal diameter in profile height. A new version (which is not published yet) of the book ‘Maak- en meetnauwkeurigheden’ describes a difference in measured profile height of 21% of the nominal diameter between the spherical foot staff method and a conventional staff method..
Selected response from:

lugoben
Local time: 14:50
Grading comment
¡Muchas gracias a todos!
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +1soporte de pie esférico
Marcelo Viera
4 +1mira/estadía estadimétrica graduada en pie/ft(0.0001 ft)
lugoben


Discussion entries: 1





  

Answers


6 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
soporte de pie esférico


Explanation:
In general measurements above water are performed using land survey
equipment and are relatively simple and reliable provided a clear reference level is used. The standard method for surveying rock levels is described in CUR 154 [1991] and requires the use of a semi-spherical foot as a reference.
As the semi-spherical foot staff is unusable under
water or in the surf zone, echo-sounders are commonly used here.

Marcelo Viera
Uruguay
Local time: 15:50
Works in field
Native speaker of: Spanish
PRO pts in category: 4
Notes to answerer
Asker: ¡Gracias, Marcelo y Pablo!


Peer comments on this answer (and responses from the answerer)
agree  Pablo Cruz
1 hr
  -> That´s right. We found the same file.
Login to enter a peer comment (or grade)

1 day 17 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
mira/estadía estadimétrica graduada en pie/ft(0.0001 ft)


Explanation:
En topografía, una estadía o mira estadimétrica, también llamado estadal en Latinoamérica, es una regla graduada que permite mediante un nivel topográfico, medir desniveles, es decir, diferencias de altura. Con una mira, también se pueden medir distancias con métodos trigonométricos, o mediante un telémetro estadimétrico integrado dentro de un nivel topográfico, un teodolito, o bien un taquímetro.
https://es.wikipedia.org/wiki/Mira_(topografía)

A level staff, also called levelling rod, is a graduated wooden or aluminum rod, used with a levelling instrument to determine the difference in height between points or heights of points above a datum surface.
https://en.wikipedia.org/wiki/Level_staff

If the knob is turned until the cross-hair is set to an exact staff graduation the combined sum of this staff value plus the reading on the micrometer scale will give the required staff value for the pointing. With the metric model of the micrometer, readings can be made in this way to the nearest hundredth of a millimeter, as compared with the estimation to a millimeter without the micrometer. The foot model allows direct reading on its scale to 0.0001 ft. (which is the graduation interval) and estimation can be made to half an interval.
http://www.wild-heerbrugg.com/changing face.htm

The multi-beam method shows even lower levels than the conventional staff method. This is remarkable because the conventional staff is able to measure all the holes and hence the multi-beam method cannot measure lower levels. Therefore the low levels of the multi-beam method can only be explained by the acoustic disruptions causing errors [HAUER, 2000]. A different method is the survey with the bucket of a hydraulic excavator. This method is not further discussed because no literature is available on this method. BOSMA, 2001 performed research into different survey techniques as well. He investigated the difference between the conventional staff and the spherical foot system. He found that the difference in profile height is a function of the nominal stone diameter and can be written as: 0.24 +Dn50 +0.18
In this case the dimension is [cm]. Apparently he found a difference of approximately 20% of the nominal diameter in profile height. A new version (which is not published yet) of the book ‘Maak- en meetnauwkeurigheden’ describes a difference in measured profile height of 21% of the nominal diameter between the spherical foot staff method and a conventional staff method..

lugoben
Local time: 14:50
Native speaker of: Spanish
PRO pts in category: 58
Grading comment
¡Muchas gracias a todos!
Notes to answerer
Asker: Gracias, Lugoben. Saludos.


Peer comments on this answer (and responses from the answerer)
agree  Marcelo Viera: excelente aporte. Saludos
1 day 19 hrs
  -> Muchas gracias Marcelo, saludos
Login to enter a peer comment (or grade)



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