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Geotechnical BIM: Applying BIM

principles to Geology

Gary Morin

gary.morin@keynetix.com

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BIM Principles

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Traditional Process

Site Investigation

Often viewed as an overhead and tick box requirement at the start of the project

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Traditional Process

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37% of project overruns cite ground problems as a major contributor

National Economic Development Office

70% of public projects were delivered late and 73% were over the tender price

National Audit Office

The need for Geotechnical BIM

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Typical BIM?

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Earlier Knowledge Reduces Risk

Ability to impact cost 1

Cost of changes

Design Construction Operation Time

Effo

rt/E

ffec

t

Traditional decision process

Preferred decision process

1

1

2

3

2

4

3

4

P. MacLeamy, Effort Curve, HOK

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Early Site Investigation

“Early investigation allows the identification

of any ground-related risks associated with

a development so that they can be

effectively managed and associated costs

controlled” AGS Guidelines for

Good Practice in Site Investigation

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Keynetix: Geotechnical Data Journey Traditional Process

HoleBASE SI

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Standardised methods and formats to capture data

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Standard methods and formats to capture data

The golden rules

1. Enter data only once

2. Get someone else to do it

Log as close to source as possible and use electronic transfer

KeyLogBook – Plog – HoleBASE SI Data Entry

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Barcode Samples

M1 – Smart Motorway

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M1 J19 – J16 – Smart Motorway

• 125 boreholes

• 31 “sites”

• SI design modified as work progressed

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Build upon and refine previous knowledge

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1. Build upon and refine previous knowledge

• Why start from Scratch?

Previous Projects

Geology Maps

Site plans and drawings

Aerial Photos

Lidar

Project Models

AGS data in a BIM environment

Silvertown Tunnel:

By kind permission of Transport for London

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Silvertown Tunnel – Previous Investigations

• Dockland light Railway

• Millennium dome

• Cable Car (same alignment as tunnel)

• Only 3 additional boreholes across the river was required

• Estimated saving around £100,000 (on SI)

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3D Digital Collaboration

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Better understand and visualise data in context

• Rapidly view down hole data

• In context with the proposed site plan

• Better understand were potential problems may occur

Silvertown Tunnel:

By kind permission of Transport for London

30

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HoleBASE SI, AutoCAD Civil 3D and Navisworks

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3 Tunnel route Options in Brisbane HoleBASE SI AutoCAD Civil 3D

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Geotechnics BIM

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HoleBASE SI Geotechnical Data Management KeyLab Geotechnical Lab Management

Keynetix Products

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Geotechnical BIM: Applying BIM

principles to Geology

Gary Morin

gary.morin@keynetix.com