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SPECIAL
EXPERIENCE
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- Tunnel
design, design of primary supports, and construction.
- Geotechnical
investigations, instrumentation, and feasibility studies.
- Foundation
design and appraisal of existing foundations.
- Stabilization
of slopes including design and construction of slope protection
techniques.
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Click
here for full printable resume of experience
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February
1984 to present
Independent Geotechnical Consultant
Geotechnical
consultancy including the following assignments:
-
Lecturer for Geotechnics and Highway Engineering in Institute of Technology
Bandung's highway engineering programme (M.Sc.) in Bandung, Indonesia.
- Geological
assessment and site investigation recommendations for proposed Jambu Aye
Dam in Aceh Province, Sumatra. (P.T. RAK Materials Consultants/ Tarmac Overseas
Ltd., Jakarta).
- Geotechnical
consultant and tunnelling advisor to contractor for Contract 109, Singapore
Mass Rapid Transit Project, (Obayashi-Okumura Joint Venture).
- Geological
prediction and technical advice on tunnelling for contractor on Singapore's
Mass Rapid Transit Project, Contract 108, (Taisei-Shimizu- Marubeni Consortium).
- Geotechnical
consultant and contractual advisor to contractor for Contract 304, Singapore
Mass Rapid Transit Project, (RDC-Obayashi Joint Venture).
- Contractual
and geotechnical advisor to contractor for Wadaslintang Multi- purpose Dam,
Central Java. Advice relating to quarry development and diversion tunnel
construction, (Hydro Resources Contractors Corp., Manila).
- Geotechnical
advice on quarry development, diversion tunnel and dam foundations for main
contractor, Sungei Ahning Dam, Kedah, Malaysia, (Balfour Beatty-Maju Sdn
Bhd).
- Geotechnical
studies and design of remedial works at Empress Place Government Building,
Singapore, following undermining during tunnel construction, (R J Crocker
and Partners- Singapore Public Works Department).
- Geotechnical
advice and studies on groundwater behaviour during deep basement excavation
at Plaza Indonesia Project, Jakarta, (Ssangyong Construction Co Ltd).
- Geotechnical
and Underground Excavation consultant to contractor for Sungei Piah Hydroelectric
Project, Perak, Malaysia. Project includes over 20km of hard rock tunnels,
(Ret-Ser Engineering Agency, Taipei).
- Greater
Cairo Wastewater Project: Contract 8, Canal construction between Khalag
Pumping Station to Gabal El Asfar Treatment Plant. Geotechnical studies
in connection with foundation stability and dewatering of excavations for
drainage canal 1.5km long, 8m deep. (SPP Projects Ltd., Reading, England).
- Greater
Cairo Wastewater Project: Contract 12, Tunnels between Abdeen and Ein El
Siera. Geotechnical studies in connection with rock tunnel excavation, lining
stability, and ground settlement. (Cairo Wastewater Consortium, Cairo).
- Samanalawewa
Hydroelectric Project, Sri Lanka. Geotechnical investigations and advice
connected with dewatering and rock stability during excavation of a 5.3km
power tunnel and penstocks. (Balfour Beatty Construction International,
London)
- Paiton
Thermal Power Station, Indonesia. Investigation, design, and construction
supervision of a 2km long, 50m high rock slope along boundary of project.
(Konsorsium Nusa Perkasa, Jakarta).
- Singkarak
Hydroelectric Project, West Sumatra. Tunnelling and geotechnical advisor
to main contractor for Value Engineering proposals, claims, and instrumentation.
Project includes 20 km of tunnels including 9 km with TBM, and underground
powerhouse. (Dumez/Impregilo/Istaka Karya Joint Operation).
- Tulis
Hydroelectric Project, Central Java. Tunnelling and geotechnical advisor
to main contractor for Value Engineering proposals, claims, and Method Statements.
Project includes 2.8 km headrace tunnel, surface penstock, and Power House.
(PT Pembangunan Perumahan, Jakarta).
- Kambaniru
Dam, East Nusa Tenggara Irrigation Project, Indonesia. Technical advisor
to main contractor for design of river diversion cofferdams, dewatering
system, and dam foundation treatment. (PT Waskita Karya, Jakarta).
- Bila
Dam, Bila Irrigation Project, South Sulawesi, Indonesia. Technical and construction
scheduling advisor to main contractor. Responsible for design of river diversion
dike, cofferdam, and main channel erosion protection. (PT Waskita Karya,
Jakarta).
- Muara
Tawar Combined Cycle Power Plant, Jakarta. Monitoring of site investigation
and interpretative report in swampy coastal area. (PT Balfour Beatty Sakti
Indonesia, Jakarta).
- Porsea
Dam, North Sumatra. Investigation of collapsed dam and recommendations for
foundation improvement and ground treatment during reconstruction.
- Suralaya
Thermal Power Station, West Java. Contractual assistance to piling contractor
and geotechnical review and recommendations based on site investigations.
(PT Pembangunan Perumahan, Jakarta).
- Timika
New Town Development, Irian Jaya. Geotechnical investigations and foundation
design for large residential and industrial complex in coastal area of Irian
Jaya. Development connected with mining development in central part of the
Island. Responsible for field testing and complete review of foundation
designs for office, industrial, and residential buildings in area of virgin
jungle. (PT Freeport Indonesia, Jakarta).
- Renun
Hydroelectric Project, North Sumatra. Review of tender documents and geological
appraisal of proposed tunnels for bidding contractor. (PT Balfour Beatty
Sakti Indonesia, Jakarta).
- Besai
Hydroelectric Project, Lampung, South Sumatra. Review of tender documents
and geological appraisal of proposed tunnels, diversion dam, and outdoor
Power House for bidding contractor. (PT Balfour Beatty Sakti Indonesia,
Jakarta).
- Tuen
Mun Road Widening, Hong Kong. Review of tender documents, geological appraisal,
and technical assistance to main contractor. Project includes re-excavation
and stabilisation of slopes up to 50 m high along a 13 km section of highway.
(Shui On-Balfour Beatty Joint Venture, Hong Kong)
June
1979 - February 1984
International Engineering Co., San Francisco
Principal
Geotechnical Engineer. Responsible for rock and soil mechanics studies, site
evaluation and geotechnical design for IECo's projects in the US and overseas.
From October 1981 to December 1983 assigned as Project Geotechnical Engineer
at the Saguling Hydroelectric Project, West Java, Indonesia. This 550 MW project
includes 12km of tunnels and extensive open cut excavation in weathered rock
and residual soils.
Previous
assignments with IECO were:
- Ret-Ser
(RSEA) Engineering Agency, Taiwan: Sha'ar Descent Highway, Saudi Arabia
(8 months). Geotechnical and construction advice to Taiwanese con- tractor
for highway down south western escarpment of the Arabian Plateau. Project
included 8 tunnels and 18 bridges. Responsible for design of slope stabilisation,
tunnel supports and preparation of design alternatives on behalf of contractor.
- City
of San Francisco: Proposed Crosstown Sewerage Tunnel. Preparation of environmental
impact report relating to effects of tunnel construction on adjacent communities.
-
Arco Oil and Gas Co.: Kuparuk Spine Road, Prudhoe Bay, Alaska. Assessment
of Spine Road bearing capacity in preparation for transporting modules to
new camp and drill pads at Kuparuk. Included drilling and sampling perma-
frost, supervising test loads and subgrade design.
- Alaska
Power Authority: Tyee Lake Hydroelectric Project. Site investigation including
rotary drilling, design of tunnels and other underground facilities including
support requirements, linings, and tunnel plug.
- Exxon
Minerals Company: Santiago, Chile. Geotechnical investigation, assessment
of stability, and design of remedial work for Rio San Francisco Diver- sion
Tunnel (bypassing a tailings dam), Perez Caldera, near Santiago.
- Chevron
Oil Company, Evanston, Wyoming. Supervision of site investigation for proposed
20 km railway.
- Morrison-Knudsen
International: Trans Panama Pipeline (based at Atlantic Terminal, Chiriqui
Grande). Controlled offshore drilling and tanker terminal site investigations
carried out by local contractors, and completed land- slide studies of pipeline
route.
1978
to 1979 and 1973 to 1975
Mott,
Hay and Anderson, Croydon, England
Senior
Geotechnical Engineer. Responsible for geologic investigations and rock mechanics
studies for the design of the following major projects:
- Proposed
Tehran to Tabriz railway, Iran. Controlled site investigation of northern
section of route. Coordinated and controlled local site investigation contractors
for section which included several tunnels, two of 5 km and 7 km length.
- Anglo-French
Channel Tunnel. Designed and supervised construction of experimental tunnel
linings and carried out rock mechanics instrumentation program.
- River
Foyle Crossing, Londonderry, Northern Ireland. Designed and supervised offshore
drilling program in river estuary.
1976
- 1978
Golder Brawner and Associates, Vancouver, Canada
Senior
Geotechnical Engineer. Responsible for the assessment of rockfall hazards
and the design of tunnel and rock cut stabilisation work on the Canadian Pacific
Railway between Calgary and Vancouver. Controlled work at approx- imately
30 sites as part of the CPR's annual maintenance program. Remedial work, which
usually included rock bolts, buttresses and shotcrete, was supervised with
junior engineers during this period.
Undertook
geological feasibility studies for a new railway and access tunnels to an
open pit mining development in British Columbia.
1975
- 1976
Shawinigan Engineering Co., Montreal, Canada
Specialist
Geotechnical Engineer. Initially based in St. John's, Newfoundland, on the
project planning and design for the Strait of Belle Isle Tunnel between Newfoundland
and Labrador. Responsible for the development of camp sites and support services
at each of the tunnel shaft sites.
Subsequently
based in the firm's Montreal headquarters and responsible for a series of
seepage studies in connection with Quebec's James Bay Project.
1969
- 1973
University
of Newcastle-upon-Tyne, England
Completed
postgraduate studies leading to M.Sc. and Ph.D. degrees in rock mechanics
and excavation engineering. Research was based on investigations of rock behaviour
and tunnel lining performance during construction of a highway tunnel beneath
the River Mersey, Liverpool, England.
1966
- 1969
Metropolitan Water Board, London
Design
Engineer. Assignments included designing a pumping station roof struc- ture
and covered reservoir, supervising installation of a high pressure pipe- line
complex at a new pumping station and designing a pressure tunnel and shafts
for an aqueduct diversion. The aqueduct was located beneath a large highway
intersection and the tunnel was driven by a borer and lined with expanded
segmental linings.
1965
- 1966
Kinnear Moodie and Co., London
Construction
Engineer for a firm of tunnel contractors. Supervised work in a 2 km long
cable tunnel driven through chalk. Responsible for the main survey and mining
operations at two of the four tunnel faces. Water inflow controlled through
the use of compressed air. Other difficulties caused by excessive hydrogen
sulfide gas released from the chalk during tunnelling.
1964
Marples,
Ridgeway, and Partners, London
Employed
as site engineer during college vacations on construction of the Victoria
Line subway in London.
Publications
Author
or co-author of technical publications on geotechnical applications of finite
element analysis, rock mechanics, and tunnelling.
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Addendum
to Resume
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Summary
of Recent Experience
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In
addition to the projects listed on my resume, I have worked as a consultant
or full-time assignment on the following projects. In all cases, I was
asked to assist the contractor during a particularly difficult construction
period, or was nominated by the Engineer to strengthen the contractor's
site staff during tunnel construction.
- Samanalawewa
Hydroelectric Project, Sri Lanka (Balfour Beatty International Co
Ltd). Completed investigations and advised contractor on causes and
remedial work following massive water inflow (work halted for 6 months)
during excavation of 4 km headrace tunnel.
- Lai
King Tunnels, Airport Express Railway, Hong Kong (Maeda Corporation).
Nominated Chief Geotechnical Engineer during completion of three closely-
spaced tunnels for MRT extension railway. Responsible for temporary
tunnel support selection and all geotechnical matters (tunnels passed
closely below existing large and important structures) connected with
contract.
- Strategic
Sewage Disposal Project, Stonecutters Island, Hong Kong (Franki- Holzmann
JV). Nominated Chief Geotechnical Engineer during initial tunnel excavation
stage. Responsible for temporary tunnel support selection during the
drill-and-blast pilot tunnel excavation which preceded TBM installation.
- Tanggari
II Hydroelectric Project, Manado, Indonesia (Dusata Joint Operation
[= Dumez]). Geotechnical consultant retained to advise and prepare
propo- sals on tunnel support during completion of 2 km headrace tunnel
through shear zone (which extended for nearly 500 m).
- Besai
Hydroelectric Project, Lampung, Indonesia (Kumagai Gumi Co Ltd). Geotechnical
consultant advising on temporary tunnel support design and preparation
of technical documentation relating to geology during completion of
6 km headrace tunnel.
- Tsing
Yi and East Lantau Tunnels, Airport Express Railway, Hong Kong (Down-
er-Zublin JV). Geotechnical advisor on tunnel supports during completion
of four, 2 km tunnels. Completed investigations, prepared documentation,
and monitored remedial work relating to major collapse in westbound
East Lantau Tunnel, believed due to abandoned mine workings.
- Casecnan
Multipurpose Project, Nueva Ecija, Philippines (Hanbo Engineering
and Construction Co Ltd). Nominated Chief Geotechnical Engineer for
supervision of slope and tunnel temporary support. Project includes
27 km of tunnels and underground powerhouse. Responsible for temporary
support designs, method statements, and portion of QA Manual relating
to tunnel work
- Discovery
Bay Road Tunnel, Hong Kong (Kumagai Gumi Co Ltd). Geotechnical advisor
and, later, nominated Chief Geotechnical Engineer in charge of temporary
tunnel support selection and installation, geotechnical monitoring
(tunnel and slopes). Project includes 11 m wide, 500 m long tunnel,
completed by drill-and-blast.
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