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Project Case Study
Epping NSW — Apartment Development
Construction Support
Residential Developer
Epping, NSW
Geotechnical Investigation
Shoring Design
Sydney Water SEA
View Related Services
Project Overview
About
This Project
KFM Geotech supported an apartment development in Epping from initial investigation through to construction. The engagement covered geotechnical site investigation, hydrogeological assessment, dewatering management and monitoring, vibration monitoring, piling inspection, footing assessment, shoring design, and a geotechnical appraisal prepared for a Specialist Engineering Assessment.
Basement excavation with shoring at the Epping apartment development, NSW
Site Photography
Scope of Works
Investigation & Design
01
Geotechnical Site Investigation
Borehole drilling, in-situ testing and laboratory testing to define the soil and rock profile across the site.
02
Hydrogeological Assessment
Assessment of groundwater conditions and the effect of the proposed basement excavation on the local water table.
03
Dewatering Management Plan
Preparation of the dewatering management plan, with groundwater monitoring maintained through the excavation.
04
Shoring Design
Design of the temporary shoring system retaining the basement excavation.
Construction Phase
On-Site Support
Piling rig operating at the Epping apartment development, NSW
Rock core from borehole BH104, Epping NSW, cored 3.0–20.0 m
Groundwater monitoring well installed at the Epping apartment development, NSW
01
Vibration Monitoring
Monitoring of ground vibration through piling and excavation adjacent to neighbouring properties.
02
Piling Inspection
Inspection and recording of pile installation and the conditions encountered at founding level.
03
Footing Assessment
Inspection and acceptance of footing excavations against the assumptions made at design stage.
04
Geotechnical Appraisal for SEA
Geotechnical appraisal prepared to support the Specialist Engineering Assessment required by Sydney Water.
Results
Project Outcomes
Investigation, groundwater assessment, shoring design and construction-phase inspection were delivered by one team, so the ground model established at investigation stage carried through to what was verified in the excavation.
  • Slope stability confirmed — Factor of Safety ≥ 1.5
  • Flexible pavement design approved by certifier
  • Council DA requirements met on first submission
  • Earthworks specification accepted without amendment
  • Retaining wall micropile design parameters delivered on program
  • Construction risk reduced through early site characterisation
Standards & Compliance
All deliverables are produced in accordance with applicable standards

AS 1726

Geotechnical Site Investigations

AS 4678

Earth-Retaining Structures

Council

Local Council Requirements

Industry

Best Practice Guidelines

Austroads

Pavement Design Guidelines

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