Civil BIM and the Future

Transformation of the Digital City

October 2020

Presenter:

Makram Jaibaji

Regional Director

What is “Vertical and Horizontal BIM”

BIM-Digital Engineering depends on who you are talking to

And almost all the BIM discussions in recent past have been on buildings and structures.

So what about the CIVIL BIM

Is the Vertical BIM Important for the city

!!!

• How Detailed is the Design of the Building ,LOD?

• How much time the designers will need to redesign the

building?

• What is the Building Life Cycle or the operational cost?

• Other questions……

22/10/2020 3

BIM and IFC’s

Industry Foundation Classes

For ifc 2x3 definition, the Elements - currently

mainly for vertical buildings• Ifc Element definitions

• Ifc Column

• Ifc Door

• Ifc Slab

Criticise Vertical BIM

• BIM has been mainly

developed for Vertical projects

such as building.

• Vertical BIM doesn’t support

vectors.

• Vertical BIM doesn’t have

coordinate Manipulator.

• Vertical BIM doesn’t fit for

large longitudinal

infrastructure projects

• BIM name

BUT Can BIM be Civil ?

Civil BIM

• World Coordinate System

Earth NOT a sphere BUT an Ellipsoid – a sphere that is

squashed in a bit at the top and the bottom

Long and Lat to Map project of Easting and Northing (x,y)

(Geodetic Coordinates)

Orthometric heights and ellipsoid heights.

22/10/2020 7

Civil BIM

• Plate Tectonics and Continental Drift – Australia is drifting 7cm per year to the Northeast towards the

equator so everything is moved 1.8 m since 1994

– Our continents is moving everyday at about the rate that a nail grows.

– Imaging that mixing the GDA94 and GDA20 so your house was out by 1.8 m when placing it near the boundary

– Satellite Images and Google Earth

– Dynamic Datum :the satellite change

their datum every year

• Epoch

22/10/2020 8

Civil BIM

• Underground Utilities Data

• Infrastructure info and Coordinates

• Assets

• Facility Management

• Simulations and scenarios

• Land Ownership and usage

• Central Data Source GIS

22/10/2020 9

A Civil BIM System Needs• Large coordinates – e.g. Eastings and Northings

• Handle large and long horizontal projects

• A Helix for arcs

• Strings without diameters and attributes on strings, vertices and

segments

• Name/Code for strings – used in Australia at least since 1980

• Null z values in strings

• Drainage/Sewer pits and pipes

• Tins for surfaces (hundreds of millions of points) and trimeshes for

3D objects

• Alignments – independent horizontal and vertical geometry;

vertical defined in terms of 2D distance (chainage) of HG

• Linear referencing using Alignments

• Transitions – spirals, cubic parabolas etc (varying radius helix)

• Published formats available free of charge to everyone.

22/10/2020 11

1 • Geophysics Survey

2 • Geomatic Survey

3 • Aerial Survey

4 •Marine Survey

Civil BIM

Depth of 10 meters

Any type of services (HV cables, LV cables ,Fiber

Optics, Drainage & Sewer Pipes, Water

conduits, Gas Pipes, Live & Dead Cables...etc.)

All utilities GIS attributes as depth, type

,material and status

Outputs: BIM, DWG, DGN, KML and SHP

formats

Accuracy ± 3 mm horizontally and ± 30

Vertically

Underground Mapping

Utilities Mapping

Actual Data Ground Marking 2d Drawings

3d BIM Model12d Attributes Manipulator

Underground Mapping

Utility Coordination

Underground Mapping

Wide range of UT mapping techniques are in GCS for various soil conditions or utilities types:

• Direct Method

• Electrical Method

• Electromagnetic Methods

• Ground Penetrating Radar

• Potential-Based Method

• Pipe Tagging Methods

• Multisensory Technology

Civil BIM Functionality

• Traffic Signals

• Utility Pits.

• Clash Detection

16

BIM Data

22/10/2020 17

Underground Mapping Live GIS

Underground 12d to Google Earth

22/10/2020 20

Underground Assessment

Laser Scanning to BIM

12d Data of Underground and Laser Scanner 2019

22/10/2020 24

Laser Scanning

Making BIM Smarter

Points Cloud

Mobile Mapping

Mobile Mapping

Asphalt Assessment – Laser Crack

System

Civil BIM Functionality

Pavement Manager

Mixed Reality Hologram

To overcome Corona Virus crisis without affecting project

performance GCS/Alhoty team will introduce Mix reality

MR technology to provide direct hologram supervision to

site staff during surveying and then will be used for

present data to the client.

https://www.youtube.com/watch?v=d3YT8j0yYl0

Hologram

Hologram

Aerial Survey

Aerial Survey

Aerial Survey - TIN

Hydraulic Studies – Flood Assessment

250 million points in 12d

Services will be provided:

1. Underground Mapping

2. Update GIS Database of Aramco

3. NOC to contractors

4. Implement 12d Technology in ARAMCO

5. Provide Training to ARAMCO Staff

6. R&D

Hydrographic SurveyBathymetric Survey in 12d

Oceaneering AUV-Based

Pipeline Survey

Oceaneering AUV-Based

Future – More Civil Objects in IFC’s

To address Civil BIM, buildingSMART (the International Group looking after

IFCs) has working groups looking at how non-Building data should be

transferred using IFCs

There are currently Working Groups on:

12d Solutions is working with these bSI Working Groups.

• Alignment

• GIS

• Roads

• Rail

• Bridges

• Tunnels

IFC

KPI’s for measuring BIM/IFC success

• Reduction in RFI’s relating to setout errors

• Clashes identified prior to construction

• Better understanding of the design intent by the construction team

• Design model will be adopted by the survey team, resulting in a

reduction in survey modelling effort for construction setout

• Workflows and process developed on M1/M3 will be adopted as

business as usual for other traditional delivery projects.

Surveying

Construction

Roads and Highways

Land Development

Oil and Gas

Ports and Dredging

Mining Infrastructure

Rail

Airport Infrastructure

Drainage, Sewer, and Utilities

Environmental

Rivers, Dams, and Hydrology

Project Types:

12d Model is a Civil BIM System.