Jiangsu Lianyungang Pumped-storage Power Station Reservoir Construction
Project: Lianyungang Pumped-storage Power Station is a first-class large (1) type project. The key structure is mainly composed of upper reservoir, lower reservoir, water conveyance system, underground powerhouse system and ground switching station. The installed capacity of the power station is 1200 MW, which is a daily regulation power station. The power station is equipped with four single-stage vertical shaft mixed-flow reversible pump-turbine generator units with a single unit capacity of 300 MW and a rated head of 425m. The main permanent hydraulic structures such as the water retaining structures and discharge structures of
the upper and lower reservoirs, the water conveyance system structures, the underground powerhouse and the switch station are designed as Grade 1structures, the secondary structures such as the drainage gallery and the semi-gravity drainage tunnel are designed as Grade 3 structures, and other temporary structures are Grade 4 structures. The normal operation flood return period of
the upper and lower reservoir dam, water inlet/outlet and lower reservoir discharge structure is 500 years; the abnormal operation flood return period of the upper reservoir dam and water inlet/outlet is 10000 years; the abnormal operation flood return period of the lower reservoir dam, water inlet/outlet and lower reservoir discharge structure is 5000 years. The normal operation flood return period of energy dissipation and scour prevention structures is 100 years. The normal operation flood return period of the main structures of the underground powerhouse system is 200 years, and the abnormal operation flood return period is 1000 years.
Bidding scope: upper reservoir works, lower reservoir works, upper reservoir inlet/outlet, lower reservoir inlet/outlet, mechanical and electrical equipment installation works, on-site road works, site leveling works, construction diversion works, environmental protection and water and soil conservation works.
Planned construction period: The project is planned to be commenced on August 1, 2026 and completed on June 30, 2031, with a total construction period of 59 months. The specific commencement date shall be subject to the formal notice of commencement issued by the supervisor. Main work contents of
the project (including but not limited to):
Upper Reservoir Project
a) Upper Reservoir Dam Project. Including topsoil stripping, open excavation of earthwork, open excavation of stonework, foundation treatment, tunnel excavation of stonework, support, filling of earthwork and stonework, backfilling of reservoir bottom, drilling and grouting, concrete pouring, fabrication and installation of reinforcement, masonry construction, etc.
B) Excavation and protection works of reservoir basin expansion, including open excavation of earthwork, open excavation of stonework, support, concrete pouring, reinforcement fabrication and installation, drilling and grouting.
C) Local anti-seepage around the reservoir, including concrete cut-off wall, drilling and grouting.
d) Monitoring civil works of permanent buildings of upper reservoir, including civil works of observation room of upper reservoir, building decoration, lighting pipeline installation, burying and drilling of monitoring instruments, coring of drilling, backfilling of drilling, trench excavation, trench excavation and backfilling, and other permanent safety monitoring cooperation.
Upper reservoir inlet/outlet works
a) Upper reservoir inlet/outlet and gate shaft, including topsoil stripping, open excavation of earth and rock, tunnel excavation, well excavation, support, concrete pouring, reinforcement fabrication and installation, concrete backfilling, pavement concrete, drainage ditch, grouting borehole and grouting, drainage borehole, etc.
B) Power distribution room, hoist room, site leveling, concrete pouring, masonry, building decoration, installation of embedded parts of lighting pipeline, etc. at the inlet/outlet of upper reservoir.
C) Metal structure installation within the scope of upper reservoir inlet/outlet, including: embedding, installation and commissioning of upper reservoir inlet/outlet gate (trash rack), hoist and its control cabinet; cable laying, wiring and commissioning between hoist body and control cabinet; unloading, unpacking acceptance, storage and secondary transportation of metal structure equipment; Initial operation and maintenance before the first unit is put into operation.
Lower reservoir works
a) Lower reservoir dam works, including topsoil stripping, open excavation of earthwork, open excavation of stonework, foundation treatment, tunnel excavation of stonework, support, filling of earthwork and stonework, backfilling of reservoir bottom, drilling and grouting, concrete pouring, reinforcement fabrication and installation, masonry construction, etc.
B) Lower reservoir discharge pipe tunnel works: including open excavation of earthwork, open excavation of stonework, tunnel excavation of stonework, support, drilling and grouting, concrete pouring, reinforcement fabrication and installation, steel pipe installation, valve installation and commissioning, water stop construction, etc.
C) Excavation and protection works of lower reservoir basin expansion, including open excavation of earthwork, open excavation of stonework, support, concrete pouring, reinforcement fabrication and installation, drilling and grouting, etc.
d) Local anti-seepage works around the reservoir, including drilling and grouting.
e) Production and living buildings of the lower reservoir, including civil engineering and decoration of buildings (structures) such as emergency valve hoist room and oil pump room of the discharge pipe tunnel.
f) Monitoring civil works of permanent buildings of the lower reservoir, including civil works of observation room and building decoration, lighting pipeline installation, monitoring instrument burying and drilling, drilling and coring, drilling and backfilling, trench excavation, trench excavation and backfilling, and other permanent safety monitoring cooperation. 5.
B) Power distribution room, hoist room, site leveling, concrete pouring, masonry, building decoration, installation of embedded parts of lighting pipeline, etc. at the inlet/outlet of the lower reservoir.
C) Installation of metal structures within the scope of the water inlet/outlet of the lower reservoir, including: embedding, installation and commissioning of the gate (trash rack), gantry crane and its control cabinet at the water inlet/outlet of the lower reservoir; cable laying, wiring and commissioning between the gantry crane body and the control cabinet; unloading, unpacking acceptance, storage and secondary transportation of metal structure equipment; Initial operation and maintenance before the first batch of units are put into operation.
Other works
a) Procurement, installation, welding and finished product protection of grounding system within the scope of this bid section for grounding, embedded parts and buried pipes
(including the grounding grid of the upper and lower reservoir areas). Procurement and installation of embedded parts and buried pipes for civil works of all permanent works within the scope of this bid.
B) Open excavation of earthwork, open excavation of stonework, filling of earthwork and stonework, concrete pouring, procurement and installation of protective barrier, etc. for the fence works
of upper and lower reservoirs.
C) Cable trench and drainage ditch cover plates
in the upper and lower warehouse areas generally adopt inorganic composite cover plates, which are produced by the manufacturer, purchased and supplied by Party A and Party B, and purchased through separate bidding. The trench cover plates are transported to the site and unloaded to the designated site. The Contractor shall be responsible for the unloading, storage, on-site transportation and installation of the cable trench and drain cover plate within the scope of the Contract. If reinforced concrete cover plate is used, it shall be prefabricated by the Contractor, and the Contractor shall be responsible for installation and acceptance.
d) Mechanical and electrical equipment installation works
1) Lighting system installation
, procurement, installation and commissioning of upper and lower reservoir ring roads and dam crest road lighting system, including all equipment, materials and civil works such as lighting lamps, wires and cables, box transformers, street lamps and box transformer foundations. Procurement and installation of embedded pipes and embedded parts of lighting system for other civil works within the scope of the Contract.
2) Installation
of electrical equipment Installation of embedded parts required for the installation of electrical (box) panels and other equipment of all structures/buildings within the scope of this bid section. Laying of upper and lower reservoir grounding network.
3) Initial water storage and makeup and permanent fire protection pipeline and valve accessories
① The Contractor shall be responsible for the design, procurement, construction, acceptance, operation, maintenance and management of auxiliary facilities such as initial water storage and makeup pipelines and valve accessories of the upper and lower reservoirs.
② The Contractor shall be responsible for the procurement, construction, acceptance, operation, maintenance and management of the permanent fire-fighting pipelines, valve accessories and other ancillary facilities of the Project. Mainly include elevation
76.4) Construction information management construction and operation maintenance
, mainly responsible for procurement, installation, operation and maintenance of equipment such as video and security monitoring, tunnel access control, emergency broadcasting and communication in the construction area of this bid section.
e) The
new roads in the site include the dam crest road of the upper and lower reservoirs, the road around the reservoir, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, X1, X2, X3, X7 and other temporary roads not listed.
Maintenance roads include permanent roads (1 , 4 # and 5 #), temporary roads (S1, S2, S3, S4, S5, S6, S7, S8, S9, S10 and S11) in the upper reservoir construction area, and temporary roads (X1, X2, X3, X4, X5, X6, X7, X8 and X9) in the lower reservoir construction area.Before the completion of the
project, the asphalt concrete shall be poured for the pavement of the ground permanent roads such as the upper and lower reservoir roads and the ring reservoir roads.
f) Site leveling works
include site leveling, drainage and retaining works. The construction site of Lot
C1 is located in the 8 # plot (comprehensive processing plant, metal structure assembly plant, repair plant, comprehensive warehouse, etc.), with a site area of about 23500 m2. The foundation soil of this project is mainly alluvial silty clay or silt, and the Contractor shall fully consider the quantities of foundation treatment. The construction camp of Lot
C1 is located in Plot 8 , with a site area of about 8900m2. The foundation soil of the Project is mainly alluvial silty clay or silt, and the Contractor shall fully consider the quantities of foundation treatment. The construction site of the upper reservoir project in Bid
C1 is arranged on the gentle slope of the north and east bank of the upper reservoir; the site area is about 61,700 m2, and the site is mainly composed of gullies and gentle slopes, which need to be excavated high and filled low.
G) Others
1) Initial impoundment of upper and lower reservoirs.
2) Various coordination works for the filling and drainage test of the flow channel.
3) Daily maintenance and overhaul during the construction period of Bailey Bridge across Yunsu Road and demolition before the completion of the project.
浙公网安备33010802003254号