Main Ridge Pony Club – Equestrian Water Jump

Geoline was engaged by Main Ridge Pony club on the Mornington Peninsula, to supply and install a 1.5mm HDPE liner with a geotextile cushion protection layer at their new equestrian water jump.

Working in conjunction with committee members from Main Ridge Pony club, we were able to install a water tight water jump.

It was great to visit Main Ridge pony club for the grand opening of the water jump that had been in the making for some time. Great effort by all involved.

Posted in Dam Liners, Ornamental Ponds, Plastic liner, Ponds Tagged with: , , , , , , , ,

Heap Leach Pad Liner Installation – Malaco Leichhardt Mine – Kajabbi, QLD

Geoline supplied and installed 10,000sqm of 1.5mm HDPE geomembrane for a heap leach pad in far north Queensland. Mine owner Malaco Leichhardt operate the copper mine located in Kajabbi, Queensland.

Geoline’s experienced geomembrane installers mobilised to site with welding and lifting equipment. Our team worked hand in hand with mine site supplied labourers to install the liner which was financially beneficial for the mine operator.

Due to the location and time of year that the project needed to be installed, Geoline had to implement a fatigue management system due to the temperature getting above 40 degrees celsius everyday.

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Monash Park Pond, Greater Shepparton City Council

Monash Park Pond, Greater Shepparton City Council

Background: Monash Park pond is an iconic pond in the middle of Shepparton, opposite the council offices. Monash Park is renowned for the “Moooving Art” display and the Chinese garden with a dragon sculpture in the park pond, originally donated by Shepparton’s sister city in Shanghai.

Original Monash Park Pond

Original Monash Park Pond

 

The pond in its original state had a sandy clay soil bottom and a 500mm bessar block perimeter capped with beautiful blue stone rocks.

The Monash Park pond also had a water fountain that blasted water into the air. Over time the pond developed a leak and would not hold water, that’s where Geoline comes in.

 

 

 

 

 

 

Solution: Greater Shepparton City Council (GSCC) consulted with Geoline for a solution to the leaking pond at Monash Park. Geoline recommended a 2mm HDPE geomembrane liner be installed with a steel anchoring system fixing the HDPE around the perimeter of the pond. The advantage of the 2mm HDPE option were that no destructive earthworks were required and we could guarantee a 100% water tight solution.

2mm HDPE liner

2mm HDPE liner.

HDPE Extrusion Welding

HDPE Extrusion Welding

Working in the shade.

Working in the shade.

2mm HDPE Liner install

2mm HDPE Liner install

 

 

 

 

 

 

 

The Chinese dragon (pictured below) in the pond took some time to fabricate around as did the bridge. We had to make each individual sculpture water tight by wrapping them with 2mm HDPE, sealing the top using neoprene rubber compressed with steel flat bar and a bead of sikaflex.

Chinese Dragon in Shepparton

Chinese Dragon in Shepparton

Chinese Dragon, Shepparton

Chinese Dragon, Shepparton

There were also a couple of inlet and outlet pipes that we had to seal around. We achieved this by using a 32mm stainless steel Band-It clamp compressing the HDPE with neoprene rubber backing against the concrete structure.

Bandit Clamp

Bandit Clamp

Fountain Pump Housing

Fountain Pump Housing

Overflow / Outlet pit

Overflow / Outlet pit

Batten Bar Anchoring System

Batten Bar Anchoring System

 

 

 

 

 

 

 

 

The end result the pond now holds water and looks pleasing to the eye.

Finished article with fountain going.

Finished article with fountain going.

 

 

Posted in Dam Liners, Lagoons, Ornamental Ponds, Plastic liner, Ponds Tagged with: , , , , , , , , , , , , , , , , ,

Sun Valley Reservoir, snow making dam – Mount Buller

Sun Valley Reservoir 1,710 mAHD – Mount Buller, Nov-Dec 2014

Case Study: MtBuller Snowmaking Dam leaking approx 1litre per second.

 

Background:

Sun Valley Reservoir was built 20 years ago and the engineered fill side of the dam was lined with 1.5mm HDPE geomembrane. The existing rock face side of the dam was left as is and the liner terminated through the middle of the dam.

Entura- Hydro Tasmania, a specialist power and water engineering firm investigated the reservoir leakage stems from the HDPE liner being only partial and not connected to a watertight foundation.

As the dam is also used for fire fighting season, a completion of the liner could not be realized at that time of year and a watertight trench proposal was accepted.

Sun Valley Reservoir

Sun Valley Reservoir

Mt Buller Dam - Winter

 

Scope of Works:

Entura engaged Geoline to fulfill their resolution of a watertight trench connecting the liner to the rock to stop the leakage. The dams water level was lowered enough to fulfill the scope of works, but still have water for fire fighting.

Geoline mobilized two 20T excavators to the top of MtBuller, 1710m, above sea level that proved to be a mighty feat on its own.

Under the instructions of Entura civil engineers Geoline excavated hundreds of cubic meters of material from the dam wall to the high side of the dam floor.

IMG_1472

Cutting down wall and shaping trench.

Excavating material out.

Excavating material out.

 

 

 

 

 

 

 

 

 

Geoline installed a thick cushion geotextile to the surface of the sub-grade to help protect the HDPE liner. A 1.5mm HDPE liner was then installed over the top of the cushion geotextile and tied into the existing 20-year-old HDPE liner. (Trial weld destructive tests showed no issues with welding 20-year-old plastic exposed to the harshest conditions).

Altitude HDPE Lining

Altitude HDPE Lining

Geoline again installed a cushion geotextile over the HDPE and then placed the excavated fill back into the watertight trench.

Using a pad foot roller we compacted the backfill material in lifts.

Compacting backfill

Compacting backfill

 

 

 

 

Entura and MtBuller happy with project finish.

Finished Project

Finished Project

Project Surprises:

  • Excavator’s diesel fuel filter froze up, even though we were heading into summer. Added alpine fuel additive, worked fine.
  • Prime mover (floating excavator up mountain) started to wheel spin and melt alpine bitumen road at 4pm in the afternoon with a top of 16 degrees.
  • Excavated through two natural springs. Pumps to dewater.
  • One slight batter collapse as batter was 1:1, 7m deep.

 

Project complete Dec 2014.

Posted in Dam Liners, Earthworks Contractors, Lagoons, Plastic liner, Ponds Tagged with: , , , , , , , , , , , , , ,

Decorative Pond Between Carport and House, Mornington Peninsula

New house in Red Hill on the Mornington Peninsula with a feature water pond running between the house and carport. There will be a walkway to cross over the pond into the house.

Geoline installed a 1.5mm HDPE liner 12m x 3.5m with two inlet pipe penetrations and one overflow / outlet pipe penetration. River rocks were placed by the landscape gardener. The plastic liner was placed on a compacted sand sub-grade that the landscape gardener had prepared before we arrived.

Inlet pipes into pond

Inlet pipes into pond

Decorative pond between house and carport.

Decorative pond between house and carport.

Posted in Ornamental Ponds, Plastic liner, Ponds Tagged with: , , , , , , , , , ,

Rain Gardens / Bio-retention beds

Geoline installed two liners for the rain garden/ bio-rention beds in Mulgrave. We installed rectangular garden beds out of 1.5mm HDPE geomembrane. Each rain garden bed had two pipe penetrations, one stormwater inlet to allow the water to filter thru the media and one at the bottom to drain out to normal stormwater drains.

One was installed in concrete culverts above the ground and the other was installed in an excavated clay hole below ground level. .

What is a rain garden?

IMG_1901IMG_1844IMG_1845Rain Garden cross section

Posted in Dam Liners, Plastic liner, Tank Liners Tagged with: , , , , , , , , ,

Tough Mudder Australia & New Zealand Liners

Earlier this year, Geoline provided liners to Tough Mudder for their Australian and New Zealand obstacle courses. Geoline pre-fabricated the liners using a tough 0.5mm polypropylene membrane and packaged them up ready to be freighted to the various sites. Liner sizes manufactured were up to 25m x 28m. We also used a white 0.5mm canvacon material for their ice bath, to give it that extra cold look and feel.

So if you participated in the Tough Mudder 2014 obstacle course, there’s a good chance you ran though one of our liners. If the liners are tough enough for thousands of competitors trampling through them in one weekend, they will definately be durable enough for your pond or dam liner.

Pre-fabricated Liners for ponds, dams, obstacle courses.

Pre-fabricated Liners for ponds, dams, obstacle courses.

 

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Irrigation channel lining in Cohuna, Vic

Channel Lining in Cohuna, VIC

Channel Lining in Cohuna, VIC

Geoline participated in 4km’s of 2mm HDPE channel lining near the country town of Cohuna, Vic. Battling the elements of doing this job in winter as it is every year was challenging just getting on to site each day, as the farmers tracks and lane ways became mud pits that you had to tackle in 4wd. All in all it was a great few weeks away with a fantastic bunch of blokes.

Days end in the channel

Days end in the channel

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Two ornamental dams lined in Romsey

Geoline has finished reconstructing and lining two dams on a property in Romsey. Our client advised that his dams received lots of water from the Macedon Ranges yet neither of them would hold water. Geoline advised an impervious 1.5mm HDPE liner to be installed as this would be strong enough to take wild life footprints from surrounding Kangaroos that frequent the area and hold water for irrigation. Geoline shaped up the dams using a 14 ton excavator and sloped part of the dam wall for easy access without the need for access ladders to be installed. 5 ton excavator used to dig anchor trench which was backfilled after the liner was installed and compacted using wacker packer. If you would like your dam to hold water please contact us for a solution.

Shaping up the dam and track rolling in filled areas. Digging anchor trench for plastic liner.

Shaping up the dam and track rolling in filled areas. Digging anchor trench for plastic liner.

Welding equipment used on dam liner to make impermeable.
Welding equipment used on dam liner to make impermeable.

1.5mm HDPE Impermeable Liner

1.5mm HDPE Impermeable Liner

Ornamental pond ready for water.

Ornamental pond ready for water.

 

Posted in Dam Liners, Earthworks Contractors, Plastic liner Tagged with: , , , , , , , , , , , , , , , , , , , ,

Leaking Concrete Tank fixed with Liner

Geoline completed a tank liner installation in Beveridge, Victoria.

The 75,000 liter concrete tank had four leaking areas that seemed to have been fixed on the outside by some remedy that didn’t quite work. Our client called in frustration having tried other options to rectify her leaking concrete tank. Geoline installed a 1.14mm Reinforced Polypropylene tank liner, connected the liner to the existing outlet valve and redirected the overflow pipe as per our clients request.

Geoline completed the liner installation in two days and our client was able to fill up straightaway.

Leaking Concrete Water Tank

Leaking Concrete Water Tank

Concrete Tank outlet valve

Concrete Tank outlet valve

Cleaned out Tank

We removed the galvanised roof and cleaned out sludge from the bottom of the concrete tank, ready to be lined.

Installing 1.14mm Reinforced Polypropylene geomembrane as a tank liner.

Installing 1.14mm Reinforced Polypropylene geomembrane as a tank liner.

Extrusion welding reinforced polypropylene for a water tight seal.

Extrusion welding reinforced polypropylene for a water tight seal.

Securing tank liner with aluminium strapping.

Securing tank liner with aluminium strapping.

Finished RPP (reinforced polypropylene) tank liner installation. Ready for water.

Finished RPP (reinforced polypropylene) tank liner installation. Ready for water.

 

 

 

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