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CLIENT:
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· Japan Airport Consultants Inc., for
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· Directorate General of Air Communications, Ministry of
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Communications
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PROJECT SCOPE:
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· Repair and upgrading of runway, taxiways and apron
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· Construction of new parallel, connecting and exit
taxiways, new apron and GSE areas
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· Construction of new passenger terminal building (51,000 s.m.)
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· New cargo facilities building (14,000
s.m.)
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· New control tower, operation and administration
buildings
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· New Rescue and fire fighting station
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· Utilities upgrading
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· Fuel storage and supply system
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PERIOD OF SERVICES:
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· 1997 to 2007
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DCI SCOPE:
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· Production of pre-qualification documents, evaluation
criteria and guidelines.
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· Design team co-ordination,
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· Preparation of bid documents, bidding procedures,
evaluation criteria and guidelines.
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· Bid evaluation, negotiation and contract award
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· Contract management and administration
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· Progress monitoring and control
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· Staff training
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· Completion and hand-over services
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AIRPORTS
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Balikpapan Airport,
East Kalimantan, INDONESIA
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Balikpapan is a major petroleum
production centre in East Kalimantan with
very extensive local oil and gas deposits and an established infrastructure
for refining and processing the products of this industry. Forestry and
agriculture together with the mining of coal, metal ores and minerals
constitute other significant industries in this thriving location.
DCI have provided support consultancy services to their client on two
successive JBIC (OECF) financed, major development
projects at Balikpapan
Airport and
consequently retained a continuous site presence at this location from 1991
to 1998.
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CLIENT:
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· Japan Airport Consultants Inc., for
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· Directorate General of Air Communications,
Ministry of
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Communications
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PROJECT 1 SCOPE:
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· Runway - repaired and extended to 3,300m with land
reclamation
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and major earthworks
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· Parallel taxiway - upgrading for use as temporary
runway and thence restoring to taxiway use
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· Apron reconstruction and expansion
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· Construction of new passenger terminal building (12,000 s.m.)
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· Airfield lighting and radio navaids
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· Site improvement, sea walls, jetty, air - sea
rescue facility, roads and car-parking
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PROJECT 2 SCOPE:
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· Aircraft hangars (5,600 and 6,200 s.m.)
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· Administration and general aviation buildings
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· Offshore rescue equipment
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· Aircraft fuel storage and supply facilities
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PERIOD OF SERVICES:
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· Project 1 - 1989 to 1996
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· Project 2 - 1996 to 1997
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DCI SCOPE:
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· Production of pre-qualification documents,
evaluation criteria and guidelines.
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· Preparation of bid documents, bidding procedures,
evaluation criteria and guidelines.
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· Bid evaluation, negotiation and contract award
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· Contract management and administration
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· Progress monitoring and control
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· Staff training
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· Completion and hand-over services
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HYDRO
POWER PROJECTS
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Renun Hydro Electric Power and Transmission
Line Project,North Sumatra, INDONESIA
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The Renun Project is located at Lake Toba
in North Sumatra approximately 120 km south west of Medan. Lake Toba
and the surrounding area is of outstanding natural
beauty and understandably a very popular although remote tourist location.
The vital environmental sensitivity together with the remote, elevated
location and difficult geological conditions make this an extremely
demanding project.
Hydropower for the project is derived from inlet water taken from a
number of rivers flowing on the Batak plateau at
around 1500 to 1600 meters above sea level, diversion through a 3 metre
diameter tunnel 20 kilometres long constructed through the pyroclastic Toba formations and discharging into the
lake at around 900 metres above sea level. The power plant produces 82 MW
of power through two turbines.
The Indonesian Government has received the financial assistance of the
Japanese Government through a JBIC loan, to facilitate implementation of
this major project. The implementation agency for the works is PT.
Perusahaan Listrik Negara (Persero)
otherwise known in Indonesia
as PLN. DCI’s client is Nippon Koei Co. Ltd
of Japan,
the project designer and project management consultant.
The implementation of the Project has been divided into a number of
separate contract packages each awarded under International Competitive
Bidding (ICB).
DCI are involved with the Lo II Civil Works Package for which the scope
is described below.
The project implementation had been continuing since 1995 and progress
has been affected by a considerable variety of commercial and contractual
challenges. DCI were invited to provide consultancy support services in
2003 to assist in the completion of the works.
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CLIENT:
· Nippon Koei Co. Ltd. for PLN.
PROJECT SCOPE:
· Downstream Headrace Tunnel
Concrete-lined circular pressure flow tunnel 11,151.347 m long and
connecting the regulating pond to the surge tank.
3.3 m diameter, 0.4 m thick, design discharge 22.1 m3/sec.
· Branch Tunnel
3,403 m long circular pressure tunnel connecting tributary intake shafts
No. 10 and No. 11 to the downstream headrace tunnel.
2.5 m diameter, design discharge 3.5 m3/s.
· Surge Tank
At end of downstream headrace tunnel, connecting to the penstock tunnel
To compensate for excessive high water pressure due to sudden shut-down
of turbine operation.
Restricted orifice type; 8.0 m inside diameter, 57.6 m high.
· Penstock Tunnel
Inclined steel liner backfilled with concrete,
Upper inclined penstock line - diameter 3.3 m to 3.0 m,
Middle horizontal penstock - 2.5 m diameter, 127.3 m long,
Lower inclined penstock line - 2.0 m diameter, 157.1 m long,
Bifurcated to two branches 1.2 m in diameter connecting to each turbine.
Total length around 850 m.
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· Powerhouse
External steel framed, concrete and masonry building, floor area 5500
m2,
Five floors to accommodate two generating units each of installed
capacity at 41 MW.
· Tailrace - Channel type, trapezoidal section
· Outdoor Switchyard
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PERIOD OF DCI SERVICES:
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· 2003 to 2005
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DCI SCOPE:
· Analysis and evaluation of time and cost claims for delay, disruption
and extension of time.
· Preparation of detailed claims report, describing:
Practical basis of each claim
Contractual/legal basis and validity
Financial evaluation of valid claims
Recommendation for further action
· Provision of assistance to the Client for contractual/commercial settlement.
· Provision of strategic advice to the Client for project completion
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HYDRO
POWER PROJECTS
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Asahan 3 Hydroelectric Power Plant, North Sumatra, INDONESIA
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The Province of North Sumatra stretches across the island of Sumatra
between the Indian Ocean and the Straits
of Malacca. It borders Aceh province in the northwest and Riau and West Sumatra provinces on the southeast. The
province contains a broad, low plain along the eastern coast where the
provincial capital, Medan
is located. In the south and west the land rises to an impressive
mountain range that runs the length of Sumatra and which is dominated by Lake Toba. Lake Toba
is a collapsed volcanic caldera lake on the Batak
and Karo Plateaus of the Barisan
mountain range. The lake has a surface area of 1,100 km2, depth of 450 m,
perimeter of about 450 km and a catchment area of around 3,450 km2.
The Asahan
River originates from Lake Toba
near the town of Porsea and flows eventually
into the Straits of Malacca. The upper reaches of the river flow through
rice crop plains but the river’s features drastically changes its
features after approximately 30 km, forming a variety of large and small
rapids and waterfalls. This is where the Asahan
2 Hydropower Plant was constructed.
The Asahan No. 3 Project will be constructed
in the upper reaches of the river just below the existing Asahan 2 Hydropower Plant. The project location
is approximately 260 km southeast of Medan
and 30 km east of Lake
Toba. The Project
area is generally a mountainous area covered by forests. Crop fields also
sparsely located on the flatter slope lands between the headworks and the head pond of the Project.
The Indonesian Government has received the financial assistance of the
Japanese Government through a JBIC loan, to facilitate the basic and
detailed design of this major project. The implementation agency for the
works is PT. Perusahaan Listrik Negara (Persero) otherwise known in Indonesia as PLN. DCI’s
client is Nippon Koei Co. Ltd of Japan, the project designer
and project management consultant.
The Project is divided into 5 separate contract packages all requiring
prequalification of bidders and all to be competitively bid on ICB. There
are also 2 packages for local bidding.
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CLIENT:
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Nippon Koei Co. Ltd. for PLN.
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Contract
Package
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Scope
of Contract Package
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Lot I
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Civil
Works
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a) Temporary river diversion channel 15m wide, 4.5m high and
285m long with cofferdams for construction works
 b) Intake weir to
suit gates size 74.5m wide, 29.3m high and 110m long
c) Intake to suit trashracks and a
gate size 9m wide, 10.5m high, 75m long and intake channel of 9m wide and
144m long
d) Headrace conduit 10m wide, 6m high and 375m long
e) Headrace channel 9m wide, 6.2m high and 1,296 m long
f) Head pond with spillway and to suit gates 32 m wide, 9 m
high and 126m long
g) Headrace tunnel with reinforced concrete lining 6.6m inside
diameter and 7,773m long
h) Three work adits for headrace
tunnel 181m, 295m and 130m
i) Headrace surge tank 14m inside
diameter and 55 high
j) Penstock shaft and tunnels to accommodate steel liner 5.3 to
2.9m dia. and 338 m long
k) Underground power house 22m wide, 38.5m high and 106.6m long
for 174 MW (2 units of 87 MW) generating equipment
l) Tunnels for the powerhouse of access tunnel of 303m long,
cable tunnel and shaft 183m long and other access tunnel of 144m long
m) Tailrace surge tank 15.2m diameter and 39.6m high
n) Tailrace tunnel with reinforced concrete lining 6.6m
diameter and 475m long
o) Tailrace outfall 14.7m wide, 20m high and 22m long
p) Switchyard 59m wide and 102m long
q) Main control buildings, service house, intake and head pond
control houses
r) Porsea substation extension 35m
wide by 51m long
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Lot II
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Metal
Works
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INTAKE WEIR FACILITIES:
a) Porsea
substation extension 35m wide by 51m long
b) Scouring sluice gates and hoists
c) Stoplog
and monorail hoist for sluice gates
d) Stoplog
for scouring sluice gates
e) Irrigation discharge intake screen
f) Irrigation discharge intake gate
and hoist
INTAKE FACILITIES:
a) Intake trashracks
b) Intake trash raking system
c) Intake gate and hoist
d) Stoplog
for intake gate
e) Maintenance flow intake gate and
hoist
f) Irrigation discharge intake gate
and hoist
HEADPOND FACILITIES:
a) Headpond intake
gates and hoists
b) Headpond inlet trashracks
c) Headpond
inlet gate and monorail hoist
d) Stoplog
for intake gate
e) Headpond
sand flush gates and hoists
STEEL PENSTOCK FACILITIES:
a) Steel penstocks: 5.3 m ~ 5.1 m ~
Bifurcation 6.3 m ~ 3.8 m ~ 3.3 m ~ 2.9 m (total 338m)
b) Penstock isolating
valve: ND 5.3m
DRAFT TUBE GATES FACILITIES:
a) Draft tube gates and hoists
TAILRACE OUTFALL CLOSURE FACILITIES:
a) Guide frame for tailrace outfall closure
facilities
ELECTRICAL FACILITIES:
a) Electrical Power Receiving and Supply
Facilities
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Lot III
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Electro
– Mechanical Works
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a) Turbine: Vertical Francis, 89,000kW, 300rpm (2 Nos.)
b) Generator: V-shaft, semi-umbrella, 97,000kVA (2 Nos.)
c) Main transformer: 150/13.8kV; oil immersed, two winding
w/OFWF cooling (2 Nos.)
d) Powerhouse crane: 110/30/5t (2 Nos.)
e) Switchgear:150kV, 20kV, 13.8kV and low voltage (2Nos.)
f) Supervisory control and protection equipment
g) Telecommunication system
h) Porsea S/S extension: 150kV
switchgear for 2 add circuits
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Lot IV
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Transmission
Line Works
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a) Asahan 3 to Porsea
Substation; 150kV x 2 cct; ACSR 240/40 x2 (32
km)
b) Steel
Towers (88 Nos.)
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Lot V
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Telemetering and Flood
Warning System
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a) Telemetering System to monitor and
estimate the inflow to the Intake Weir on the Asahan River in order to operate the
Power Generation Control System and Flood Warning System
b) Flood Warning System to provide advance warning to local
inhabitants downstream of the Intake Weir when any rapid increase of
water level is occurring due to flooding from upper streams and outflow
from the head pond
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Local
Bidding
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Access
Road and Base Camp
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PERIOD OF SERVICES:
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· 2007
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DCI SCOPE:
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Quantity Surveying/Contract Engineering Services comprising:
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a) Preparation of PQ documents for international tendering, with
all necessary schedules and pro-formae.
b) Preparation of PQ guidelines, defining the procedures for
reviewing, scoring and ranking prospective tenderers
with detailed evaluation forms
c) Preparation of Tender documents comprising:
- Invitation To Tenderers
- Instructions To Tenderers, defining the procedures for tendering,
reviewing, and selection of Contractor(s)
- Conditions of
Contract (using FIDIC Conditions as a basis, with General and
Particular Conditions)
- Specifications for
Workmanship, Equipment and Materials, including providing basic
reference documents to engineers, coordinating and editing
engineers’ draft documents
- Assisting with
preparation of Bills of Quantities (BOQ), including providing basic
reference documents and method of measurement to engineers,
coordinating and editing engineers’ draft documents and
training/supervising local personnel
- Preparing tender
evaluation methodology and guidelines.
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IRRIGATION
PROJECTS
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Batang Hari
Irrigation Project, Sumatra,
INDONESIA
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Sumatra is one of the world's largest islands and with its fertile soils,
climate and natural water supplies, it is
naturally one of the richest agricultural areas in Indonesia.
The Batang Hari
Irrigation Project provides new and profitable agricultural development
through river diversion, improvement and construction of new canals,
irrigation and drainage systems over an area of 19,000 hectares. The
Indonesian Government received the financial assistance of the Japanese
Government through JBIC loan, to facilitate implementation of this major
project.
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The Project area is located at about 200 km east of Padang,
the capital of West
Sumatra Province
and provides around 7,000 hectares of rubber plantation, 6,000 hectares of
rice paddy and 6,000 hectares of upland field.
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The Batang Hari Irrigation Project utilises the abundant water
available from the Batang
Hari River and its tributaries the Siat, Palangko-Piruko and Mimpi
Rivers.
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The implementation of the Project has been divided
into the following five (5) contract packages under International
Competitive Bidding (ICB):
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ICB Package-1: Construction of the Batang
Hari Headworks and
the Batang Hari
Headrace Channel.
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ICB Package-2: Irrigation and Drainage Works, Lot-1;
Construction and Improvement of Batang Hari System Upstream Reach, Palangko-Piruko
and Mimpi Systems, for 3,625 ha of Beneficial
Area.
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ICB Package-3: Irrigation and Drainage Works, Lot-2;
Construction and Improvement of Batang Hari System Midstream Reach, for 7,117 ha of
Beneficial Area.
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ICB Package-4: Irrigation and Drainage Works, Lot-3;
Construction and Improvement of Batang Hari System Downstream Reach, for 5,549 ha of
Beneficial Area.
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ICB Package-5: Irrigation and Drainage Works, Lot-4;
Construction and Improvement of Siat System,
for 2,645 ha of Beneficial Area.
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CLIENT:
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! Nippon Koei Co. Ltd. for
the Directorate General of Rural Development, Ministry of Settlements and
Regional Infrastructure,
Government of the Republic
of Indonesia.
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PROJECT SCOPE:
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· Batang Hari headworks
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· Main Canals - 154 km.
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· Secondary canals - 303 km.
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· Permanent and temporary river diversions
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· Inspection Roads to all main canals
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· Bridges, spillways, culverts, aqueducts, siphons and
gates
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PERIOD OF SERVICES:
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· ICB Packages - 1, 4 and 5: 1999 to 2002 (planned)
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· ICB Packages - 2 and 3: 2002 to 2005 (planned)
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DCI SCOPE:
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1. - QUANTITY SURVEYING/CONTRACT ENGINEERING
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· Production of pre-qualification documents, evaluation
criteria and guidelines.
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· Preparation of bid documents, bidding procedures,
evaluation criteria and guidelines.
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· Bid evaluation, negotiation and contract award.
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· Contract management and administration.
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· Progress monitoring and control.
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· Evaluation of time and cost claims for delay and
extension of time.
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· Developing target time schedules for Completion.
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· Staff training
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2.- QUALITY ASSURANCE ENGINEERING
· Inspection, study and analysis of the work quality, methods and
performance by Engineer and Contractors.
· Advice to Engineer on revised/improved methods of quality control.
· Preparing and implementing Project Quality Control procedures and
supervision manuals to improve both the quality and the performance of the
Works.
· Training and monitoring performance of Contractor's and supervisory
personnel.
· Preparation of Quality Reports.
MINING
OPERATIONS
P.T.Pamapersada Nusantara - INDONESIA
Indonesia
possesses very significant resources of coal and mineral deposits and
extraction of these resources represents a major industry. DCI's client, Messrs. P.T. Pamapersada
Nusantara (P.T. PAMA), has successfully completed a large number of prestigious
and demanding projects throughout Indonesia and is presently
engaged in expanding its services to other key south-east Asian and
Australian markets.
The history and expertise of the PT PAMA dates back to 1979 when predecessor
plant and equipment companies were established. In 1997 company turnover
exceeded 200 million U.S. dollars and assets then included a fleet of more
than one thousand equipment units ranging from medium sized hydraulic
machines to bulk haulage road trains located throughout the Indonesian
archipelago. In 1997, 60 million bcm of overburden
were excavated and 15 million tonnes of coal recovered. The company's
operations include open cut coal mining, gold mining, mine operation and
management, hard rock quarrying, earthfill dams and
mining infra-structural construction works.
DCI have been providing support services to P.T. PAMA since 1995 on a range
of commercial and legal aspects of their projects.
CLIENT:
· P.T.Pamapersada Nusantara
PERIOD OF SERVICES:
· 1995 to 1998
DCI SCOPE:
· Providing analysis and advice on the legal and commercial aspects of bid
documentation
· Preparing pre-contract documentation for bid purposes for associated
engineering contracts, product haul, transportation and shipping contracts
· Advice and preparations on the contractual arrangements between all
parties (including clients) in pyramidical and link
purchase agreements
· Contract administration
for all works including:-
mining works generally
haul route construction and maintenance
product transportation, cleaning, stockpiling and grading
wharfage, handling, loading and grading
· Identifying and evaluating variations to contracts
· Contract claims preparation, negotiation and settlement
· Equipment efficiency analysis
· Project development advice
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