Latest Projects

  • Victoria Hotel Extension, St Andrews Street, Dunedin
  • Xero Seismic Strengthening, Taranaki Street, Wellington
  • New Zealand Medical Association, The Terrace, Wellington

Morath New Zealand

Circuit Street

  • Area of Work (m²)315
  • Perimeter (m)100
  • Foundation TypeType B – Perimeter concrete foundation with internal piles
  • Water Table (m. BGL)1.0
  • Repair MethodologyAnchoring/Piling
  • Time Duration (Days)25

Site Description

  • The property is located in TC3 zone, but it is not in the FMA (Flood Management Area)
  • The property suffered large settlement due to the earthquake
  • High water table, located about 1.0 meter below ground level
  • The dwelling has heavy tiled roof and weatherboard cladding

Outcome

44 x 8-m vertical piles and 14 x 10-m tie-backs through the foundation were installed, in accordance to the engineering design. The operation took place both internally and externally. The Morath equipment could be adapted for internal drilling with minimal strip-out, intrusion, and set-up time. This contributed to the efficiency of the process, in turn, improved the delivery time of the project.


Glenelg Spur (Hill)

  • Area of Work (m²)132
  • Perimeter (m)54
  • Foundation TypeType B – Perimeter concrete foundation with internal piles
  • Water Table (m. BGL)Not encountered at 3
  • Repair MethodologyAnchoring/Piling
  • Time Duration (Days)17

Site Description

  • The site is underlain by loess and loess –colluvium, located from 0.4 to 2.9 meter below ground level, hand auger hit refusal (cannot go further) at 3.3 meter maximum
  • The dwelling has light/medium weight cladding and is on a moderate slope, north-west facing
  • Two retaining walls were located on site; the upslope wall (rear of house) was a concrete wall with cracks up to 10 millimeter wide, the downslope wall (front) was a rock and mortar wall with cracks up to 30 millimeter wide
  • Very narrow gap between the house and the concrete retaining wall at the rear of the house (upslope)

Outcome

13 vertical piles and 6 tie-backs through foundation walls were installed, and 6 anchors for the concrete retaining wall with highly limited work area. Due to our highly-adaptable Morath equipment, the operation could be done with minimal strip-out and intrusion to the property.


NZMA (New Zealand Medical Association)

Two test piles were installed and tested for both tension and compression on the site of the New Zealand Medical Association (NZMA), located at 26 the Terrace, Wellington.