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soil treatment
diffuse bleeding

Glossary entry

English term or phrase:

double-fluid technique

Polish translation:

podwójny system iniekcji ciśnieniowej

Added to glossary by Polangmar
Apr 5, 2012 20:27
12 yrs ago
3 viewers *
English term

double fluid technique

English to Polish Tech/Engineering Geology
Considering the characteristics of the soil and the target design parameters of the soil treatment, four groups of trial test columns are proposed, two of them to be realized with the double fluid technique and two with the fluid technique.

Pojawia się jeszcze pojęcie triple fluid technique.

Dziękuję za pomoc.
Proposed translations (Polish)
3 podwójny system iniekcji ciśnieniowej
Change log

Apr 10, 2012 16:12: Polangmar changed "Edited KOG entry" from "<a href="/profile/645130">Joanna Kłębicka's</a> old entry - "double fluid technique"" to ""podwójny system iniekcji ciśnieniowej""

Discussion

Joanna Kłębicka (asker) Apr 5, 2012:
triple fluid technique However, taking into consideration the nature of the soil and the depth at which the treatment will be executed, the target of 2.0m-diameter columns could be at the limit of the double fluid technique. Groups of columns realized with a triple fluid technique will also be tested; this second technique will allow reaching with major certainty the target diameter of the columns. On the other side, the triple fluid technique will allow lower strength and deformability parameters.
Joanna Kłębicka (asker) Apr 5, 2012:
Each trial tests will be characterized by the following jet-injection parameters:
 Double fluid grouting (the disaggregating fluid consists of grout and compressed air):
- number and diameter of nozzles
- grout flow rate Qg [m3/h or l/s]
- monitor lift rate (or treatment speed) vt [m/h]
- monitor rotation speed [rpm]
- grout jet pressure Pg [MPa]
- air flow rate Qa [m3/h]
- air jet pressure Pa [MPa]
- composition of the grout.
Joanna Kłębicka (asker) Apr 5, 2012:
więcej przykładów o tej technice podwójnych płynów 5. LOCALISATION AND GEOMETRY OF THE FIELD TESTS
According to the characteristics of Unit 2, the double fluid jet system should be sufficient for achieving the specified performance criteria (see § 4.2).
However, taking into consideration the nature of the soil and the depth at which the treatment will be executed, the target of 2.0m-diameter columns could be at the limit of the double fluid technique. Groups of columns realized with a triple fluid technique will also be tested; this second technique will allow reaching with major certainty the target diameter of the columns. On the other side, the triple fluid technique will allow lower strength and deformability parameters.
Joanna Kłębicka (asker) Apr 5, 2012:
The report addresses the required trial field tests for jet grouting;
In fact, the excavation works inside the eastern extension of the station, potential launching shaft, are done below the water table and the proposed technical solution aims to create a water-tight jet grout plug under the excavation bottom in order to avoid impacts on the natural groundwater system. In particular, the solution avoids creating a groundwater drawdown in the area surrounding the jobsite.
The design of the Plug is presented in the report Jet grouting Plug inside Eastern extension used as a tunnel starting shaft
Polangmar Apr 5, 2012:
O czym jest tekst? Czy jest brazylijskiej proweniencji?

Proposed translations

2 hrs
Selected

podwójny system iniekcji ciśnieniowej

Dodałbym wyjaśnienie w nawiasie - ewentualnie może to też być tłumaczenie (opisowe): iniekcja płynu (wiertniczego)/zaczynu w otoczeniu/otulinie sprężonego powietrza.

Depending on the application and soils to be treated, one of three variations is used: the single fluid system (slurry grout jet), the double fluid system (slurry grout jet surrounded by an air jet) and the triple fluid system (water jet surrounded by an air jet, with a lower grout jet). The jet grouting process constructs soilcrete panels, full columns or...
http://www.haywardbaker.com/WhatWeDo/Techniques/Grouting/Jet...

Jet grouting [iniekcja ciśnieniowa, rzadziej: strumieniowa] is primarily used in sands and silts for underpinning combined with earth retention and water control. A single fluid system which utilizes only grout to form the jet grout column. The single system method can generate columns up to 36 inches in diameter. A double fluid system utilizes a fluid grout pumped in conjunction with air. The grout and air are delivered to the monitor in independently of each other and exit the monitor in a concentric horizontal orifice. The air provides a shroud for the fluid grout which enables jet grout columns to be installed with a diameter of from three to six feet.
http://www.helicaldrilling.com/jet_grout.asp

Soilcrete -DS jest udoskonalaną odmianą iniekcji strumieniowej. Technologia to jest lepsza i tańsza. Podobnie do klasycznego podwójnego systemu Jet Grouting, przy Soilcrete–DS stosuje się parę dyszy iniekcyjnych otulonych strumieniem sprężonego powietrza, które erodują podłoże i mieszają go z zaczynem cementowym.
http://inzynierbudownictwa_aktualnosci.republika.pl/pliki/ak...
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4 KudoZ points awarded for this answer. Comment: "Dziękuję Ci bardzo za pomoc!"
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