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Half-day Technical Seminar “New advances in Instrumentation Monitoring and Remote Sensing” 1 April 2017 (Saturday) Supported by Hong Kong Polytechnic University

– Department of Land Surveying and Geo-Informatics and

Department of Civil and Environmental Engineering

Programme Highlights

With growing demand of Instrumentation Monitoring and Remote Sensing in the industry, technology in

this aspect has been being developed rapidly over the past few years. This seminar will take the

participants through the presentations by pioneers in the industry – experts from University, Consultants

Contractors, and Suppliers, to new advance of this state-of- art technology.

Speakers:

Dr. Angus Maxwell BSc, PhD, CGeol, FGS is the founding Director of

Maxwell Geosystems Ltd. providing data management systems and

geotechnical consultancy services to the construction industry globally.

He is a Chartered Engineering Geologist with twenty five years of

experience in geotechnical design and construction working on major

projects in the UK, Europe, Australia, Singapore and Hong Kong. During

the last 25 years he has monitored over 250km of tunnel using a variety

of techniques, 100km of road construction in cutting and embankment,

over 50 shafts and over 200 sq. km of reclamation and land formation.

He has lectured on Tunnelling and Underground space on the Hong

Kong University MSc course on Applied Geosciences. He is immediate

past Chairman of the Association of Geotechnical Specialists Hong

Kong and past committee member of the Tunnelling and Underground

Construction Society Singapore.

Mr. David Le Goff Graduated in 1998 from “Ecole Nationale

Superieure des Mines de Nancy”, one of the top engineering

university in France. He spend all his career so far in the

Instrumentation and Monitoring Field within the Soldata Group. His

first project as Site Engineer was the “real time instrumentation” of

the foundation shaft of the IFC tower in Hong Kong back in 1998.

Then he got involved in various project throughout the world in

various position the main one being Plavinas Dam in Latvia with the

complete upgrading to real time monitoring of a dam monitoring

system, and King’s Cross refurbishment in London (United-Kingdom)

one of the first large scale ADMS project (Automatic Deformation

Monitoring System) where he was Technical Manager of Soldata Ltd

in UK from 2001 to 2008. Since 2008 took the position of General

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Rundown:

Saturday 1st April 2017

Time Topic Speakers

08:30 - 09:00 Registration

09:00 - 09:15 Opening Speech - Andy Raine, IOM3(HK) Branch President

09:15 - 09:45 Instrumentation and software as part of observational engineering

Dr. Angus Maxwell

(Maxwell GeoSystems Ltd.)

09:45 - 10:15 Urban land and infrastructure deformation monitoring by satellite radar interferometry

Dr. Zhang Lei

(The Hong Kong Polytechnic University)

10:15 - 10:40 Coffee Break

10:40 - 11:10 New Generation of Aerial Surveying Technology for Engineering Applications

Mr. Eric Yau

(AMBIT Geospatial Solution)

11:10 - 11:40 Automatic Deformation Monitoring System - Working principle of ADMS, it’s evolution through the years and the limitation of the system

Mr. David Legoff

(Soldata Asia Ltd.)

11:40 - 12:10 Mobile VR 3D modeling for BIM Mr. Jack Zhang

(GeoSys.org)

12:10 - 12:25 Q & A Session

12:25 - 12:30 Closing Remarks - Andy Raine, IOM3(HK) Branch President

12:30 Distribution of CPD Certificates

Time: 08:30 – Registration Venue: Rm N003 – Hong Kong Polytechnic University Campus

Registration and Enquiries:

HKD 50 per person registration fee for Non-IOM3 Members – Tea and coffee served. Free of charge for Members. For registration, please send your name with your IOM3 membership number, and mobile phone number through this website – Link: https://goo.gl/forms/1CW5JtX0vF2UwgOz1 Registration will be accepted on a first-come first-served basis. Successful applicants will be notified on or before 27 March 2017. If you have any enquiry or difficulties to access the above link, please contact Ir. Kelvin Choi, Honorary Secretary of IOM3 (HK) at kelvin.choi@dragageshk.com

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Certificate of Attendance (4.0 hrs) for Continuing Professional Development (CPD) will be provided at the end of the event.

Payment: Successful applicants, who are Non-IOM

3 Members, will be notified separately for payment to complete

the registration. NO PAYMENT REQUIRED until your registration is confirmed successful.

Synopsis: “Instrumentation and software as part of observational engineering” By Dr. Angus Maxwell Instrumentation married to appropriate software can provide a valuable tool to manage uncertainty in geotechnical design. Rapid feedback and the ability to link multiple disparate data streams can reduce risk and aid efficiencies in production. The talk will focus on a number of recent case histories to demonstrate. "Automatic Deformation Monitoring System. Working principle of ADMS, it’s evolution through the years and the limitation of the system.” By Mr. David Le Goff Automatic Deformation Monitoring System is a “near real time monitoring system which provide full 3D coordinates of monitoring points installed on key structure. Especially useful to provide a real-time monitoring of a structure, especially in area where access is limited for a survey team, it is the go to monitoring solution in all MTR tunnel in Hong Kong. Initially the system could cope with only one Total Station monitoring a set number of targets which provided a limited potential area of monitoring. It is now able to incorporate multiple Total Station in one group of calculation which potentially allow monitoring of very large area. Moreover, recent development of the system allows now some reflectorless monitoring, i.e monitoring of surface without the need to install any targets on the structure to be monitored. "New Generation of Aerial Surveying Technology for Engineering Applications” BY Mr. Eric Yau This presentation will cover the latest UAV and large scale aerial surveying technologies, which are now shaping the approach to 3D urban environment modelling. Using oblique photogrammetry, high resolution topographic data can be acquired cost-effectively and within short periods of time to facilitate better risk management on projects. In combination with 3D GIS, this facilitates optimal engineering design and the identification of critical elements in advance of project commencement, thereby reducing uncertainty. Reference will be made to overseas practices to highlight the rapidly evolving nature of 3D modelling and to identify the future developmental applications. “Urban land and infrastructure deformation monitoring by satellite radar interferometry” By Dr. Zhang Lei Land subsidence and infrastructure instability have long been a major concern of urban risk management. A routine monitoring can be achieved by surveying instruments or sensors (e.g., GPS and leveling). However these conventional ways can only provide us measurements at sparsely located sites or over a limited scope, which are not sufficient for risk assessment. Satellite synthetic aperture radar (SAR) orbiting at a height of around 800km can actively image the earth surface under all weather, day and night conditions. Currently there are more than 10 civilian radar satellites on orbit, whose spatial resolution and repeat cycles have been significantly improved since the launch of Seasat, the first radar satellite, in 1978. By exploiting the phase differences between two temporally separated synthetic aperture radar (SAR) images over an area of interest, SAR interferometry (InSAR) technique can measure ground deformation with an accuracy of serval millimeters. The past two decades have

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witnessed InSAR’s unique abilities in studying and monitoring natural and anthropological hazards ranging from earthquake, landslides, and urban ground deformation to infrastructure instability. In this talk, the history and recent development of InSAR techniques will be introduced. The inherent limitations of conventional InSAR techniques will also be addressed which inspired the development of advanced processing technique at PolyU, termed Temporarily Coherent Point InSAR (TCPInSAR). The technical innovations of TCPInSAR will be highlighted with a set of monitoring projects in Greater China. “Mobile VR 3D modeling for BIM “ By Mr. Jack Zhang BIM is now more and more adopted for construction projects and facility management, an indoor mobile mapping technology is introduced by jack on how to build BIM models by indoor MMS and visualization in VR and share on web/mobile for progress monitoring, as-built validation, 3D documentation, facility management and navigation.