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1、The Request for Proposal of Hoover DamName: NO.: 1. Statement of workWith the main function of plans to build the dam in flood control and irrigation water supply, power generation and other comprehensive effect, the architecture is a concrete with 2.6 million m3 of concrete arch dam. The dam is 221
2、.3 m high, crest length 379.2 m, the top 13.7 m wide, dam bottom width 201.2 m.The size of the hydropower station:Hydroelectric power is located behind the dam, with the right factory installed 8 business units, on the left bank workshop installation with nine business units, in addition to unit 2 s
3、ets for private use. Installed capacity of 2.08 million kw, generating 4 billion kw - h. Four intake tower built in front of the dam in the reservoir, four diameter is 9.14 m, the total delivery and 19 diameter is 3.99 m of pressure steel pipe are installed in on both sides of the tunnel.On both sid
4、es of the riverbed dam foundation and abutment mainly composed of lava, rock hard, in addition to very shallow table department (m) only weathering is flabby, joint fissure development, rock mass integrity, high range without a major discontinuity in dam foundation, dam upstream or downstream outsid
5、e the foundation pit has a fault, 270 m apart.1000 1 100 f t elevation in bank slope is relatively slow, mainly lithology relatively poor, weak weathering resistance, breccia. But, whether lava or breccia, the uniaxial compressive strength of the wet average is more than 100 mpa. The deepest river b
6、ed cover 38 m. Seismic intensity 8 9 .The hoover dams bedrock is hard andesite and breccia. Its riverbed is narrow and steep on both sides. Low water level to the depth of the bedrock is 33 40 m, low of 42.4 m, width of low water level of the water is 88-113 m.Table 1: dataCost 5 billion dollarHuman
7、 cost 10The dam height 221.4 metersThe dam length 379.2 mDam thickness 200 m thickConcrete quantity 3.33 million cubic metersCapacity 2080 megawatts2. Requirements2.1The dam which will be constructed need to achieve the following purposes:(1) Can be irrigated farmland. For thousands of years each sp
8、ring and early summer, the Colorado River due to the large snowmelt runoff import, resulting in rivers flooded in low-lying areas and public life and property suffered serious losses. But in the late summer and early autumn, rivers dried up again like a trickle, which cannot irrigate the farmland. I
9、n order to ensure not suffering flood and stable water supply all the year round, must control the troubled river. The to be built dam need to make sure that there are millions of acres of land in the United States, Mexico, about 500000 acres of land under irrigation, for local economic development
10、and provide strong guarantee.(2) Can supply water. The dam can offer residential and commercial water supply in Las Vegas, Los Angeles, San Diego, phoenix and other south-west of the towns as well as the Arizona, Nevada and California Indian community residents and business.(3)To provide power.To pr
11、ovide the states with electricity, such as Nevada, Arizona and California, and annual output need to achieve 4 billion kw-h for 1.5 million residents.(4)Become a leisure entertainment places.Seek profits can be obtained from the aspects of tourism. In addition to the utilities such as electricity, w
12、ater supply, make the dam realize its ornamental value as much as possible.2.2 The bidders qualification shall meet the following conditions:1) Level of qualification of construction: Water conservancy and hydropower engineering construction general contracting level 2 and level 2 above;2) Construct
13、ion experience: the enterprise has done similar project performance before January 2010, project manager or technical director has done similar project performance before 2008.3) Key personnel:Project manager: more than secondary and secondary water conservancy project;Technical director: water cons
14、ervancy engineer and above.2.3 The unit cannot serve as a bidder belongs to one of the following situations:1) In this project or this contract project preparation stage has been as a legal person, or this contracts employer has been hired for this contracts design and consulting services;2) Have be
15、en employed as the supervisor of this contract.3. DeliverablesBidders shall be stipulated in the tender documents content and format of the compilation and submit the bid documents, bid documents should include qualification documents, business bid.3.1 Qualification documentsEnterprise business lice
16、nse, qualification certificate, safety production license, investment project team personnel qualification certificate, 3 kinds of staff performance, enterprise similar projects, the project manager, or technical performance, head of the similar projects3.2 The business bid(1)Characteristic value of the bid documents(2)Bid proposal (3)Bid summary sheet.(4)Priced bill of quantities;(5)Temporary engineering quotation sheet;(6)Other cost quotation sheet;(7)Biddin
