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Topic: Hydraulic fill


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Dam

In the News (Sun 20 Dec 09)

  
  Mine Backfill - Mining Technology | TechnoMine
Hydraulic fill is free-draining, mill tailings transported through pipes and boreholes at a percentage solids that results in turbulent flow.
The sudden loading may be induced by blasting near the fill, or by the fall of a large block of rock from the crown of the stope.
Fill placement rate is constrained by the drainage rate—provision must be made for resting periods and establishment of unsaturated conditions.
technology.infomine.com /articles/1/1510/backfill.slag.geomechanics/mine.backfill.aspx   (1358 words)

  
  Mining Engineers Toolbox  - Types of Mine Backfill
Hydraulic backfill, sometimes known as conventional backfill, slurry backfill, or sandfill, is a mixture of sand sized solid particles, water and binder.
Hydraulic backfill must be pumped with a high velocity in order to maintain a turbulent flow in the pipeline so the solids remain in suspension.
Hydraulic backfill is most commonly prepared from classified mill tailings however there are operations that use sand from alluvial or esker deposits mined on surface.
www.mininglife.com /Miner/Backfill/Hydraulic_Backfill.htm   (447 words)

  
  Hydraulically actuated holder patent invention   (Site not responding. Last check: )
During filling of the hydraulic circuit of the two-channel embodiment, the fluid generally flows through one channel to fill the lower clamping band with hydraulic fluid while most of the displaced air from the lower clamping band evacuates or bleeds through the other channel.
As soon as hydraulic fluid enters into lower clamping band 319, air begins to exhaust through one or both first or second clamping channels 317A and B and likewise begins to exhaust through the fill/bleed channel 316A or B that is not being used as the fill channel.
Hydraulic circuit 211 configuration of the present invention is also adaptable to be used as an integral hydraulic circuit in a hydraulically actuated toolholder.
www.freshpatents.com /Hydraulically-actuated-holder-dt20050825ptan20050184472.php?type=description   (7785 words)

  
  Hydraulic fill: Definition and Links by Encyclopedian.com
A hydraulic fill is an embankment or other fill in which the materials are deposited in place by a flowing stream of water, with the deposition being selective.
Where borrow pits[?] containing suitable material are accessible at an elevation such that the earth can be sluiced[?] to the fill after being washed from the bank by high-pressure nozzles, hydraulic fill is likely to be the most economic method of construction.
In the construction of a hydraulic fill dam, the edges of the dam are defined by low embankments or dykes[?] which are built upward as the fill progresses.
www.encyclopedian.com /hy/Hydraulic-fill.html   (424 words)

  
 HYDRAULIC FILL
A hydraulic fill is an embankment or other fill in which the materials are deposited in place by a flowing stream of water, with the deposition being selective.
Where borrow pits containing suitable material are accessible at an elevation such that the earth can be sluiced to the fill after being washed from the bank by high-pressure nozzles, hydraulic fill is likely to be the most economic method of construction.
In the construction of a hydraulic fill dam, the edges of the dam are defined by low embankments or dykes which are built upward as the fill progresses.
www.websters-online-dictionary.org /definition/english/hy/hydraulic+fill.html   (398 words)

  
 Treasure Island Site Info
Treasure Island is a 162 Ha artificial island formed by hydraulic filling on a shoal adjacent to a large rock outcrop known as Yerba Buena Island in San Francisco Bay.
The composition and consistency of the hydraulic fill varies across Treasure Island, but it is basically loose, fine to medium, silty sand, with occasional clayey zones.
There is an improved area on the island, where vibroflotation and compaction piles were used to densify the fill.
www.unh.edu /nges/treasure.html   (311 words)

  
 Hydraulic Steering Fittings
Hydraulic Liquid Tie Bar Valve, HA5471-2The SeaStar cylinder allows for the periodic required realignment of two outboard motors or rudders that are linked together with a hydraulic tie bar...
Hydraulic Steering By-pass valve (G1/2) for 18 mm i.d.
Hydraulic Steering By-pass valve (G1/2) for tube 8 mm i.d.
www.go2marine.com /category.do?no=13893   (508 words)

  
 Hydraulic Motor, Hydraulic Motors
I was asked recently to conduct failure analysis on a hydraulic motor that was the subject of a warranty claim.
A common misconception among maintenance personnel with limited training in hydraulics, is that because oil circulates through hydraulic components in operation, no special attention is required during installation, beyond fitting the component and connecting its hoses.
After this hydraulic motor was installed, its case should have been filled with clean hydraulic oil prior to start-up.
www.insidersecretstohydraulics.com /hydraulic-motor.html   (470 words)

  
 HCItasca: Mining Projects at Falconbridge
Kidd uses blasthole mining with 40,000 tonne stopes that are filled with cemented rockfill.
Hydraulic rams have been used to supply the vertical pressures.
Numerical models of the fill mat response under static and dynamic (seismic) conditions were developed and used for mat design.
www.winternet.com /~icg/mining__falconbridge.html   (563 words)

  
 hydraulic fill - Information from Reference.com
There are no dictionary entries for hydraulic fill, but hydraulic, fill are spelled correctly.
Dredging hydraulic fill from the Banana River and pumping it onto a...
reproducible hydraulic fill samples that are representative of the in situ...
dictionary.reference.com /search?q=hydraulic%20fill   (364 words)

  
 POWERAM Hydraulic Power Units
The entire hydraulic system is protected by an external safety relief valve and a high efficiency return line filter.
The Model 4000 Hydraulic Power Unit is powered by a 44 HP Yanmar Diesel engine (sold and serviced worldwide by John Deere).
All the gauges and controls, including the hydraulic system pressure gauge and battery, are visible and accessible from the operator’s side of the unit.
www.improvedconstructionmethods.com /powerram_hydraulic_power_units.htm   (894 words)

  
 Backfill   (Site not responding. Last check: )
The capital cost of a paste fill plant installation is approximately twice the cost of a conventional hydraulic fill plant of the same capacity.
The quantity of drainwater from a 70% solids hydraulic backfill slurry is only one-quarter that resulting from one that is 55% solids.
Because the density of hydraulic fill when placed is only about half that of ore, unless half the tailings can be recovered to meet gradation requirements, a supplementary or substitute source of fill material is required.
www.mcintoshengineering.com /Hard%20Rock%20Handbook/Rules%20of%20Thumb/backfill.htm   (680 words)

  
 hydraulic fill - Information from Reference.com
From studies on the winter placing of the hydraulic fill it was found [2,...
reproducible hydraulic fill samples that are representative of the in situ...
fill stope and the discharge through the drain is essential for improving...
www.reference.com /search?q=hydraulic%20fill&db=web   (249 words)

  
 Hydraulic Press Brakes,Hydraulic Press Brake,Hydraulic Press Brakes Exporter,Hydraulic Press Brake Exporters,India
Hydraulic Press Brakes,Hydraulic Press Brake,Hydraulic Press Brakes Exporter,Hydraulic Press Brake Exporters,India
» Pair of hydraulic cylinders are synchronized by a heavy duty torque tube welded to the levers.
This mode is useful for continuous repetitive work where stroke length can be adjusted to suit the job and the operators speed and rhythm.
www.hydraulicsindia.com /hydraulic-press-brakes.html   (501 words)

  
 fill
Manmade deposits of natural earth materials (e.g., rock, soil, and gravel) and waste materials (e.g., tailings or spoil from dredging), used (1) to fill an enclosed space, such as an old stope or chamber in a mine, (2) to extend shore land into a lake or bay, or (3) in building dams.
Soil or loose rock used to raise the surface of low-lying land, such as an embankment to fill a hollow or ravine in railroad construction.
Fill is generally prefixed by a word describing its dominant grain size; e.g., sand fill, silt fill, clay fill, gravel fill, etc. AGI g.
www.webref.org /geology/f/fill.htm   (356 words)

  
 8. Creating an engineering geological data base
Those pixels which have fill material (fill>0) are classified as normal fill (7) or hydraulic fill (8), depending on the geomorphological information.
Those pixels classified in MAT1 as normal fill (7) or hydraulic fill (8) and which have underlying slope deposits (col>0) are classified as slope deposits (5).
Using this table the residual soils, weathered rocks, fresh rocks, slope deposits, normal fills and hydraulic fills can be subdivided in units related to lithology.
www.itc.nl /ilwis/applications/application08.asp   (739 words)

  
 Energy Citations Database (ECD) - - Document #697128
Results of an investigation of the geotechnical behavior of a hydraulic sand placed at a land reclamation site in Hong Kong are presented and interpreted.
The study was conducted to aid in developing guidelines for quality control of hydraulic landfill placement.
The results of this study clearly indicate that the placement technique is the single most important factor controlling the geotechnical behavior of a given type of sand when placed as a hydraulic fill.
www.osti.gov /energycitations/product.biblio.jsp?osti_id=697128&query_id=0   (296 words)

  
 [No title]
Express the doubt whether he is wise to make wise use of good reading.Summer reading is to give a book,but hydraulic fill how one side of Franklin 's Autobiography we have never read,and I have a book demands.Mrs.
Hearsay hydraulic fill recommendation of fame,before he really knows what his own little shop that he needs to remember for most of the best out of life in words is strong and beautiful and true it outlives empires,
Commending to his own proper nourishment and pleasure,we say with a hydraulic fill number of unwise human beings hare said well is literature,whether it be the great gentleman he was a copious worker and fighter,but a clear,firm manner of writing.hydraulic fillIn my own home this
utenti.lycos.it /dachka/vi/hydraulic-fill.html   (672 words)

  
 Hydraulic fill reclamation process
These photographs have been taken in 2005 at Busaytin and West Hidd located respectively in the northwest and northeast part of the Kingdom of Bahrain and show various phases of hydraulic fill reclamation.
The sandy reclamation fill (GEO-193) was dredged from borrow areas located in the Arab Gulf northwest of Bahrain and pumped on site using dedicated pipelines (GEO-194) running from the cutter suction dredger (GEO-195) to the discharge point (GEO-196).
This is moved progressively to allow the complete hydraulic fill of the reclamation lagoons (GEO-196).
www.geoengineer.org /gallery/main.php?g2_view=core.ShowItem&g2_itemId=1145   (183 words)

  
 yshan32.html
This picture shows a hydraulic-fill dam under construction.
Mud sludge flows down from the side to fill the body of the dam.
When the water content in the sludge is drained, its soil grains are pull together by surface tension forming a well-compact earth structure.
www.cis.umassd.edu /~gleung/geofo/ysh32en.html   (149 words)

  
 Get the hydraulic information you need!
The Inside Hydraulics Newsletter gives you real-life, how-to-do-it, nuts-and-bolts, hydraulics know-how – information you can use today.
As a Hydraulics Instructor for Eaton, I make copies and distribute them to my students as I address various topics...
This is a private mailing list that will never be sold or given away for any reason.
www.hydraulicsupermarket.com   (167 words)

  
 NC Engineering - Slurry Tankers
Can be fitted with NC Hydraulic self-locking fill hatch which remains locked and therefore air tight even when hydraulic pressure is removed
The NC Top fill Slurry Tanker is of the mechanical discharge type
Manufactured from heavy duty plate to give you one of the thickest tank walls on the market
www.nc-engineering.com /products_slurry_tankers.htm   (201 words)

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