Tel (Hong Kong) : +(852) 24919434
Fax: +(852) 24910158
Email: rds@bgeotech.com

NATIONALITY British

DATE OF BIRTH 12 June 1943

EDUCATION
* Diploma in Civil Engineering, Brighton College of Technology, England (1965)
* M.Sc. (1970), Soil and Rock Mechanics, University of Newcastle-upon-Tyne, England
* Ph.D. (1973), Rock Mechanics and Excavation Engineering, University of Newcastle-upon- Tyne, England

REGISTRATIONS
* Member, Institution of Civil Engineers, London. Chartered Civil Engineer, UK

PRESENT POSITION
Geotechnical Consultant and Owner of Berkeley Geotechnical Associates since 1984.

SUMMARY OF EXPERIENCE
* 31 years experience in design and construction of major engineering projects in Great Britain, USA, Canada, Saudi Arabia, Iran, Panama, Chile, Egypt, Sri Lanka, Malaysia, and most countries in SE Asia.
* 28 years specialization in geotechnical engineering and tunnelling.

SPECIAL EXPERIENCE
* 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.

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)

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.

* Ret-Ser (RSEA) Engineering Agency, Taiwan: Sha'ar Descent Highway, Saudi Arabia (8 months). Geotechnical and construction advice to Taiwanese contractor 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 Diversion 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 landslide studies of pipeline route.

* 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.

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 approximately 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.

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.

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.

Design Engineer. Assignments included designing a pumping station roof structure and covered reservoir, supervising installation of a high pressure pipeline 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.

Construction Engineer for a firm of tunnel contractors. Supervised work in a 2km 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.

Employed as site engineer during college vacations on construction of the Victoria Line subway in London.

Author or co-author of technical publications on geotechnical applications of finite element analysis, rock mechanics, and tunnelling.

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.

1 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.

2 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.

3 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.

4 Tanggari II Hydroelectric Project, Manado, Indonesia (Dusata Joint Operation [= Dumez]). Geotechnical consultant retained to advise and prepare proposals on tunnel support during completion of 2 km headrace tunnel through shear zone (which extended for nearly 500 m).

5 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.

6 Tsing Yi and East Lantau Tunnels, Airport Express Railway, Hong Kong (Downer-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.

7 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.

8 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.