Overall schedule: the main project starts from the excavation of the top arch of the workshop, and the power generation cycle of the first unit is 5 1 month, and the total power generation cycle of the last unit is 63 months. The top arch of the main project was excavated on May 65,438+0, 2009, and the first unit was put into commercial operation on June 36,2065,438+03. The estimated time for the last three units to be put into commercial operation is: Unit 2 2065438+February 28, 2004; Unit 3 201June 30th, 4; Unit 4 is at1October 3 1, 20 14. 2014101October 3 1 day, the project was completed and all four units were put into commercial operation.
By the end of 20 1 1, the accumulated investment is18371/ten thousand yuan (estimated).
Reservoir Project 1, C 1 Bid:
Construction assistance: All construction assistance projects have been completed.
Roads around the reservoir: the support and subgrade backfill construction of roads around the reservoir will be completed by the end of the year.
Main dam: consolidation grouting and curtain grouting of toe slab of main dam will be completed by the end of the year; The dam settlement will be carried out from April to September, and the concrete pouring construction of the main dam face slab will start in June 5438+1October, and the construction is expected to be completed in mid-June 5438+1October in June 20 12.
Bay tail auxiliary dam: due to road pressure, construction is not arranged, and it is expected to be completed before impoundment next year.
Hu Qi Auxiliary Dam: All projects except the wave wall will be completed by the end of this year.
Import and export: 10 The first-stage concrete pouring of the upper reservoir gate well will be completed by the end of this month, and the import and export concrete pouring will be completed by the end of this year.
Reservoir bank protection: reservoir basin treatment and reservoir bank excavation will be basically completed by the end of the year.
2, C2 bid (civil engineering construction of water diversion system)
Construction assistance: All construction assistance projects have been completed.
1# water diversion system:
1# Upper inclined shaft: 165438+ 10/0 to complete the concrete of the lower bending section of the upper inclined shaft; In February 65438, slipform concrete was completed; In June+February, 5438, the sliding form was dismantled; The preparation for concrete construction in the upper bending section of the upper inclined shaft is completed.
1# down inclined shaft: slipform concrete will be completed in September; In September, remove the sliding form; In September, the concrete of bent section under inclined shaft was completed; Grouting in the lower inclined shaft was completed in February 65438.
1# and 2# high pressure branch pipes: steel pipe installation and concrete backfilling were completed in June 5438+00;
1# bifurcated pipe: on February 65438+, concrete pouring of bifurcated pipe lining was completed; 50% of grouting quantity was completed in February 65438.
Entering Zhong Ping Tunnel: Lining concrete construction was completed in June+February, 5438.
2# water diversion system:
2# Upper Inclined Shaft: In June, 5438+10, expanded excavation support construction was completed; In February 65438, track installation, strip foundation concrete and sliding form trolley were completed.
2# down inclined shaft: slipform installation was completed in June+10, 5438; In February 65438, slipform concrete construction was completed; In February, 65438, the concrete in the lower bending section of the inclined shaft was completed; In February, 65438, the sliding mode of inclined shaft was dismantled; 65438+February completed the preparation for grouting construction.
3# and 4# high pressure branch pipes: steel pipe installation and concrete backfilling were completed in June+February, 5438;
Other projects:
Prototype observation: the drilling construction of prototype observation was completed in June+10, 5438.
Temporary works:
Upper reservoir contractor camp project: 50% of the project quantity was completed in February 65438.
3, C3 standard (underground workshop and part of the tailrace system civil engineering construction)
Construction assistance: All construction assistance projects have been completed.
Main and auxiliary powerhouse: the excavation of the main and auxiliary powerhouse was completed on June 6, 20 1 1 year, and the electromechanical installation bid was handed over on June 6, 1 year.
Main transformer tunnel: the excavation of the main transformer tunnel was completed on 20 10/0/20/0, and the lining of the 2#, 3# and 4# bus tunnels was completed. The lining of bus tunnel 1# is expected to be completed by the end of August.
Switch station: The concrete construction of the slope attached to the switch station started in September, 20 10, and is expected to be completed by the end of February, 2010/year.
500kv outlet tunnel: The excavation of the 500kv outlet tunnel was completed on May 1 1, and the lining is expected to be completed by the end of February 65438.
Tailrace tunnel of this bid section: steel pipe installation, concrete backfilling and lining will be carried out in the tailrace tunnel of this bid section. It is estimated that the steel pipe installation and concrete backfilling of tailrace branch pipes 1# and 2# will be completed by the end of the year.
4.C4 Bid (civil engineering construction of lower reservoir and partial tailrace system)
Construction assistance: All construction assistance projects have been completed.
Dam: the curtain grouting construction of dam toe slab will be completed in September; In June 5438+10, the construction of roller compacted mortar on the upstream surface of the dam was completed; 65438+February, 20% of concrete construction of dam face slab was completed;
Inlet and outlet of lower storage tank:
1# water inlet/outlet: concrete construction of gradual change section and lock chamber section will be completed in September; 165438+ 10 to complete the concrete of diffusion section and trash rack section; In February, 65438, the second stage concrete construction of forebay section and trash rack was completed; 65438+February to complete the concrete section.
2# water inlet/outlet: concrete construction of gradual change section and lock chamber section will be completed in September; In February 65438, the concrete construction of the gate shaft was completed, and 90% of the concrete of the square section, diffusion section and trash rack section was completed in February 65438.
Spillway project: concrete construction of overflow weir will be completed at the end of September, and hoisting will be completed at the beginning of 5438+ 10; The concrete construction of the gate and hoist room is expected to be completed on February 30th, 201+65438; The concrete of spillway chute section and nose sill section was completed in June+February, 5438;
Reservoir project: dry masonry and drainage ditch construction of reservoir revetment will be completed by the end of September; Earthwork excavation on the left bank will be completed by the end of September.
5, EMI 1 standard (mechanical and electrical installation engineering construction)
1 unit: 20 1 1 May of this year, the concrete pouring of the draft tube was completed; On July 20 1 1 year, the volute/seat ring hoisting and hydrostatic test were completed; Concrete pouring of spiral case layer will be completed in October11September; It is expected that the concrete pouring of turbine layer will be completed by the end of the year.
Unit 2: Concrete pouring of draft tube was completed on June 20 1 1 year; Complete the hoisting and hydrostatic test of the volute/seat ring on October11year1October; 20 1 1 year 1 1 month to complete the concrete pouring of the volute layer;
Unit 3: concrete pouring of draft tube was completed in July of 20 1 1 year; 20 1 1 year 65438+February completed the hoisting and hydrostatic test of volute/seat ring.
Unit 4: Concrete pouring of draft tube was completed in August of 20 1 1 year.
The planned investment in 20 12 years is 870 million yuan. This investment plan is only a proposal for the 20 12 annual investment plan declared to the superior company State Grid Xinyuan Holdings Co., Ltd., and the specific investment plan can only be determined after being approved by State Grid Xinyuan Holdings Co., Ltd.
(1) Major projects
1 and C 1 Bid (civil construction of upper reservoir)
Highway around the reservoir: all pavement works and ancillary works of the dam top highway were completed in March.
Main dam: concrete pouring construction of dam face slab will be completed in the middle of 20 12/0/0, filling construction of EL743.5 to EL737.7 and wave wall construction will be completed before March of 20 12, and water storage is expected to start in April of 20 12, 10.
Bay tail auxiliary dam: before the upper reservoir is filled, the dam body of the bay tail auxiliary dam is filled; Complete the concrete pouring at the top of the auxiliary dam at the tail of the bay; Complete the construction of the reservoir bank protection project of the auxiliary dam section at the tail of the bay.
Huqige Auxiliary Dam: Complete all the projects of Huqige Auxiliary Dam before June.
Water inlet and outlet: the installation and construction of emergency gate, hoist and trash rack of Upper Reservoir will be completed by the end of February.
Closure of diversion tunnel: the closure of diversion tunnel of upper reservoir started in June+February, 5438, and is expected to be completed by the end of March, 20 13.
2, C2 bid (civil engineering construction of water diversion system)
1# water diversion system:
1# shangping tunnel: the lining concrete construction will be completed in June; Grouting construction was completed in June 5438+10.
1# Upper inclined shaft: concrete construction of upper bent section of upper inclined shaft will be completed in May; In June 65438+10, the upper inclined shaft grouting construction was completed.
5# construction adit: the concrete sealing and pouring construction of 1# system was completed in June 5438+10/October, and the concrete construction of the solid section of 2# system was completed in June 5438 +0654381October.
1# Lower inclined shaft: concrete construction of upper bent section of lower inclined shaft will be completed in May;
1# middle tunnel: lining concrete will be completed in July; In August, the grouting construction of the upper bending section of the middle adit and the lower inclined shaft was completed.
4# construction adit: 1# system concrete sealing and grouting construction was completed in June 5438+10; In June+February, 5438, the construction of 4# construction adit sealing concrete and 2# system concrete was completed.
2# water diversion system:
2# upper inclined shaft: slipform concrete of inclined shaft was completed in June; In June, the concrete construction of the lower bending section of the inclined shaft was completed; In July, the slipform of inclined shaft was dismantled; In June 65438+10, the inclined shaft grouting construction was completed; In February, 65438, the concrete construction of the upper bending section of the inclined shaft was completed.
2# Upper Flat Tunnel: Concrete lining was completed in June+February, 5438; In February, 65438, the grouting construction of upper flat tunnel and upper bent section of upper inclined shaft was completed.
2# Zhong Ping Tunnel: Concrete construction on the upstream side of Zhong Ping Tunnel was completed in July; On June+10, 5438, the concrete construction in the downstream of Zhong Ping Tunnel was completed; In 65438+February, the lining of the temporary section of Zhong Ping Tunnel was completed by 90%; In February 65438, the grouting construction of middle adit and inclined shaft was completed by 90%;
2# Lower inclined shaft: Concrete construction of upper bent section of inclined shaft will be completed in August.
2# bifurcated pipe: lining concrete will be completed in June, and grouting of bifurcated pipe and branch pipe will be completed in July.
2# lower drift: the lining concrete construction will be completed in August; June 5438+10 to complete the concrete construction of the temporary section; Grouting construction was completed in June165438+1October.
Other projects:
Drainage corridor: curtain grouting and drainage hole construction of drainage corridor were completed in June.
3, C3 standard (underground workshop and part of the tailrace system civil engineering construction)
Drainage pipeline and traffic shaft: concrete lining and structural concrete pouring of shaft will be completed by the end of June.
Tailgate opening: Installation of elevator maintenance equipment with tailgate opening began in mid-May and is expected to be completed in early July; Installation of tailgate hoist began in early July and is expected to be completed by the end of August. Installation of tailgate began in early July and is expected to be completed by the end of August.
Tailrace surge tank: 1# consolidation grouting of tailrace surge tank was completed at the end of August, and consolidation grouting of No.2 tailrace surge tank was completed at the end of 65438+February.
On October 2012165438+10, the 1# tail water system has water filling conditions.
4.C4 Bid (civil engineering construction of lower reservoir and partial tailrace system)
Dam: the concrete construction of dam face slab will be completed before March 20 12 1; 20 12 10 to complete the construction of breakwater wall on the dam crest; 165438+ 10 to complete the construction of dam crest pavement and ancillary structures.
Inlet and outlet of lower storage tank:
1# water inlet/outlet: 20 12 completed the installation of trash rack in June, and completed the installation of hoist and access door in March.
2# water inlet and outlet: Installation of trash rack, maintenance gate hoist and maintenance gate was completed in March;
Tailrace tunnel project:
1# tailrace tunnel: concrete lining construction of round tunnel section will be completed in June; Backfilling and consolidation grouting construction will be completed in August.
2# tailrace tunnel: the lining construction of the round tunnel section will be completed in September; 1 1 # bifurcation tunnel 10 month plugging;
On October 2012165438+10, the 1# tail water system has water filling conditions.
Spillway project: the installation of gate and hoist will be completed by the end of March;
Reservoir area project: All supports in the reservoir area will be completed before May 20 1 February1February, and the water storage conditions are met.
5, equipment installation and debugging progress
Public system of the whole plant: system reversal in June+February, 5438; In June 5438+10, the installation and partial debugging of the primary electrical equipment of the whole plant, such as main transformer, GIS, 500KV cable and closed current, were completed. On June+10, 5438, the installation and partial debugging of hydraulic machinery public systems such as technical water supply, electrical primary public systems such as cables, and electrical secondary equipment such as lighting communication/fire alarm were completed.
1 unit: the concrete pouring of the power generation layer was completed in February; In May, the runner was hoisted; Complete the stator hoisting in September; Rotor hoisting was completed on June 5438+00; The final assembly of the unit was completed in February.
Unit 2: Concrete pouring of spiral case layer was completed in June+10, 5438; In February, the concrete pouring of the turbine layer was completed; Complete the concrete pouring of the power generation layer in April; Complete the lifting of the runner in July; Stator hoisting was completed in February 65438.
Unit 3: completed the hydrostatic test of volute in June+10, 5438; Complete concrete pouring of volute layer in March; Complete the concrete pouring of the turbine layer in April; Complete the concrete pouring of the power generation layer in June; The lifting of the runner was completed in September.
Unit 4: The water pressure test of volute was completed in March; Concrete pouring of volute layer was completed in May; Complete the concrete pouring of the hydraulic turbine layer in June; Complete the concrete pouring of the power generation layer in August; 165438+ 10 completed the lifting of the runner.
(2) Schedule of other projects.
1, Q4 Bid Section (Construction of Sand Aggregate and Concrete Production System in Lower Reservoir)
According to the needs of engineering construction, it is estimated that about 15000t aggregate and 150000m3 concrete will be provided to other contractors throughout the year.
2. The construction of greening, landscape and sewage treatment system has been completed.