How to Define the Scope of Work in Geotechnical Investigations 🏗️ (AS 1726)

2026-06-01

How to Define the Scope of Work in Geotechnical Investigations 🏗️ (AS 1726)

Channel: Geotech Masters (24 subscribers)

Most of today's batch is exam-prep filler, hashtag spam, or Shorts. This one stands out because it tackles a concrete, often-misunderstood part of geotechnical engineering practice: how to actually scope a site investigation under AS 1726, the Australian Standard for geotechnical site investigations.

The video opens with a distinction that trips up early-career engineers and project managers alike — the difference between the project purpose (what the client wants to build) and the scope of work (what the geotechnical team will actually do to de-risk it). Getting this wrong leads to either over-drilled, over-budget investigations or, worse, undersized programs that miss critical ground conditions until construction is underway.

From the description, the presenter walks through how to translate project intent into a defensible investigation plan: borehole spacing, depth rationale, in-situ testing selection, and laboratory program. Anchoring it to AS 1726 means the reasoning is reproducible and auditable rather than rule-of-thumb.

It's a niche but high-leverage skill — the kind of thing taught poorly in undergrad and learned slowly on the job. At 24 subscribers, the channel is genuinely tiny, but the framing suggests someone who has actually written investigation scopes for real projects, not just recited textbook content.

Why watch: A working-engineer's walkthrough of scoping a geotechnical investigation under AS 1726 — the planning step that determines whether the rest of the program is useful or wasted.

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