The SoundTransit East Link Extension South Bellevue is a Trinity-Faced MSE Wall constructed in 2019.  The Trinity-Faced MSE wall is 16,000 sf and 34 feet tall.  The wall was built by KLB Construction Inc. / Shimmick Construction, designed by CESaretti Engineered Solutions, and owned by SoundTransit.             

Morococha, Peru Copper Project is a Welded Wire Wall Constructed in 2010.  The wall was designed by Tom Jepsen, P.E., and our technical representative was Tom Meehan, Earthtech West Ltd.

WALL GEOMETRY:

•    Welded Wire Walls, Crusher, Railroad, and Grinding Walls (Crusher Wrap Walls – 4 Angle Points)
•    32-year design life
•    Crusher Wall Uniform load surcharge of 905 psf for a CAT 797 Mine Haul Truck, confined to concrete aprons
•    Grinding Wall Uniform load surcharge of 11.8 kPa (250 psf)
•    Railroad Wall Uniform load surcharge for Cooper E-80
•    Maximum ground acceleration coefficient, A = 0.280
•    Maximum Wall Height of 114’
•    Maximum Mat Length of 90’ (achieved via splice)
•    8,200.75 SM of Welded Wire Wall Materials and 84 CY of ArtWeld Gabions
 

Hope Bay Projects wall was a welded wire wall located in Kitikmeot region of Nunavut Cambridge Bay, Canada constructed in July 2011. The wall was constructed by Hatch Associates LTD and the wall designer was Kirk Cesaretti, P.E., Ontiveros & Associates.

Wall Details:

• Welded Wire Wall (one 90-degree angle point)
• Maximum Wall Height of 30’
• Maximum Mat Length of 28’
• Dead Load = Increasing Dead Load from 0 @ 1m from face of wall to 275 kN/m2 @ 13m from face of wall.
• Traffic Loading = An isolated live load surcharge for Mining Haul Trucks (360 kN/m2 – Live Load) has been applied in a worst case condition @ 1m from the face of wall.
• Seismic acceleration:

Maximum ground acceleration coefficient, A = 0.100

Design acceleration coefficient in Internal Stability: Kh = Am = 0.135

Design acceleration coefficient in External Stability: Kh = 0.135 (Am = 0.135)

• 25-year design life – hot-dip galvanized
• 8,544 SF (793.76 SM)

The Bingham Canyon Crusher Relocation 2010 wall was constructed in July 2011 located in Bingham Canyon, Salt Lake Co, Utah. The wall was constructed by Ames Construction, Inc and the wall designer was Geotechnical Design Systems Inc.

Wall Details: 

•    Five Welded Wire Walls / Welded Wire Steepened Slope
•    Maximum Wall Height of 62’
•    Maximum Mat Length of 63’
•    Loads: Walls #1 and #3 will be designed for the CAT 797F mine dump trucks.  Wall #4 designed for the temporary construction load consisting of the Lampson crawler carrying the crusher.  All walls designed for a snow load of 52 psf per project requirements. Where no significant surcharges are present, a nominal 250 psf area loading used for conventional vehicular traffic.
•    Seismic acceleration of 0.23g
•    20-year design life – black steel (non-galvanized)
•    53,312 SF of Welded Wire Wall; 648 of Welded Wire Steepened Slope Wall
 

The Round Mountain Nevada Primary Crusher Relocation is a Welded Wire Wall that was constructed in 2008 by EarthTech West, Ltd.,  and was designed by Tom Jepsen, P.E.

Wall Details:

• Welded Wire Wall
• 20-year design life 
• Loads: CAT 793B, Confined to a concrete slab.
• Maximum calculated applied bearing pressure = 10,340 psf
• Maximum Wall Height of 58’
• Maximum Mat Length of 42’
• 17,880 SF

The Mazapil Mine, Mill Access Road is a Welded Wire Wall that was constructed in 2010 by Minera Peñasquito S.A. de C.V. with technical assistance by EarthTech West, Ltd., and was designed by Collins Engineers, Inc.

Wall Details:

    • Welded Wire Wall
    • 50-year design life [accelerated corrosion]
    • Loads: DL: 750 kg/m2 (150 PSF);  LL: 2,440 kg/m2 (500 PSF) &  standard AASHTO HS-20 truck              loading.
    • Maximum Wall Height of 43’
    • Maximum Mat Length of 28’
    • 12,536 SF (1,165 SM)
 

The Mongolia Mining Project is a Welded Wire Wall that was constructed in 2011.  The project is located in Khanbogd, South Gobi, Mongolia, Mongolia.  It was designed by Collins Engineers, Inc. and was built by China Construction Development Co. 

Wall Details:

•    Welded Wire Walls/Copper and Gold Crusher and Tailing Thickener Walls
•    Maximum Wall Height of 86’
•    Maximum Mat Length of 38’
•    Loads: CAT 797B mine haul truck
•    Crusher Uniform load surcharge of 905 psf for a CAT 797B mine haul truck
•    Tailings Uniform load surcharge of 90 Kn/sm
•    Seismic acceleration of 0.11g
•    40-year design life – hot-dipped steel
•    56,402 SF (5,241.78 SM)
 

The Vernal Crusher Relocation Project is a welded wire wall constructed in June 2014 located in Vernal, Utah. The wall designer is Glen Palmer, Palmer Engineering, LLC and the wall builder is West Rock Oil Field Services with the on-site technical assistance provided by Talle Meehan, EarthTech West, Ltd.

Wall Details:

•    Welded Wire Wall (double wall)
•    Maximum Wall Height of 30’
•    Maximum Mat Length of 40’
•    Non-Galvanized / Black steel
•    7,456 SF of Welded Wire Wall
 

The Soledad Mountain Project, Crushing Plant Phase 4 Project is a welded wire wall constructed in June 2015. The project is located in Mojave, Kern County, California. The MSE wall designer is Kirk Cesaretti, P.E., Ontiveros, Cesaretti & Prebor.

Wall details:

•    Welded Wire Wall (two angle points for ore dump, four angle points for fine ore bin)
•    Maximum Wall Height of 54’
•    Maximum Mat Length of 39’
•    Loads for ore dump: Traffic Surcharge - Komatsu HD785-7 Dump Truck
Loaded at 366,000 lbs Distrubuted evenly on 18'x20' Pad LL = 1020 psf Behind Wheel Berm 4' from Face of Wall Concrete Pad (2' Thick) - DL 300 psf
•    Loads for fine ore bin: Concrete Pad (3' Thick @ 20’ from face of wall) - DL 450 psf 27’Ø Tank Empty – DL 120 kips on 2,000 sf slab (60 psf) Tank Potential Load – LL 1,841 kips on 2,000 sf slab (920 psf) Conveyor footing Load – LL 625 psf @ 4’ from face of wall
•    Seismic acceleration of 0.20g
•    30-year design life – Hot Dip Galvanized steel
•    8,128 SF of Welded Wire Wall for ore dump
•    10,656 SF of Welded Wire Wall for fine ore bin
•    105 CY of ArtWeld Gabions for fine ore bin
 

The Stonewell Mining Project is a welded wire wall project constructed in June 2015. The project is located Stonewall, Manitoba, Canada. The wall designer was Kirk Cesaretti, P.E., Ontiveros, Cesaretti & Prebor and the contractor was Maple Leaf Construction, Ltd. 

Wall Details:

•    Welded Wire Wall (two angle points)
•    Maximum Wall Height of 34’
•    Maximum Mat Length of 24’
•    Loads for ore dump:
Traffic Load – CAT 773G Loaded is 102,738 kg (226,500 lbs) distributed evenly on wheel
base of 3.96m x 4.27m (13’x14’), LL is 59.6 kPa (1,245 psf) @ 4’ from face of wall
•    Seismic acceleration of 0.20g
•    50-year design life – Hot Dip Galvanized steel
•    3,416 SF / 317.36 SM