Skip to main content

Geotechnical

Menu

Geotechnical Investigations

At Alliance, we lead the way in delivering geotechnical excellence for major infrastructure projects across NSW and beyond. With a proven track record of successful partnerships with Tier One companies and government agencies, including Transport for New South Wales, Sydney Water, Ausgrid, Sydney Trains, and Port Authority (NSW), we specialise in delivering unparalleled geotechnical consultancy services for roads, rail, utilities, ports, and tunnels.

Services

  • Geotechnical Investigations
  • Proof Coring for Piles
  • Pavement Investigations
  • High-Quality Logging

Construction Phase Services

Our team of experienced geotechnical engineers and engineering geologists are available 24/7 to provide inspections for excavations, bearing capacity, compliance, verification or ground recommendations. In most cases, excavation or trench stability reports are completed onsite, saving time and reducing construction delays. These inspections are conducted by experienced engineers to identify any potential stability issues and determine if benching, battering or support systems are required.

Services

  • Full and Part-time Pile Inspections
  • Bearing Capacity Assessment and Recommendations
  • Excavation Stability Assessment and Recommendations

Instrumentation & Monitoring

Alliance has a team of highly experienced engineers to help install, monitor and report on ground movement and vibrations to minimise the risk of asset damage during construction activities. Projects with sensitive ground conditions demand meticulous site management aligned with geotechnical instrumentation and monitoring. Whether it’s a TfNSW road, Sydney Trains railway or WaterNSW/Sydney Water utility, we will provide monitoring services that will reduce the risk to assets. Implementing geotechnical monitoring is crucial for asset safety, tailored to project scope and asset significance.

Services

  • Instrumentation and Monitoring Plans
  • Inclinometer Installation and Ongoing Monitoring
  • Groundwater Monitoring
  • Vibration Monitoring
  • Settlement Monitoring

Earthworks Engineering

Alliance has a wealth of experience in monitoring soil conditions on residential developments and sub-divisions, plus large scale industrial/commercial projects. Earthworks are typically large-scale projects that require dedicated full-time support by our expert geotechnical engineers. Alliance have worked with major contractors on some of the largest developments across NSW. With our in-house drill rigs, our geotechnical engineers can carry out investigations quickly and cost-effectively.

Services

  • Preliminary Investigations and Inspections
  • Level 1 & Level 2 Coordination and Management
  • Post Earthworks Investigations, Inspections and Support
  • Construction Phase Inspections and Support

Temporary Works Design

Our Geotechnical team provides practical and certified ground related temporary works design during construction. We have experienced field staff and CPEng engineers who design, review and certify temporary batter slopes and shoring for trenches and excavations. Construction engineering support is critical to the success of any project. We work with contractors to understand their issues and preferences to provide safe, practical designs based on technical expertise and not basic conservative assumptions.

Services

  • Temporary Shoring Design
  • Working Platform Design
  • Specialist Engineering Assessment