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1、 Chen-yuan 110kv substation construction organization designAbstract: The Chen-yuan 220KVA substation is to address a serious shortage of electricity during the dry season in Southeast Guizhou and other provinces of Guizhou Power Grid to supply power transmission project in an important project. 220
2、KVA substation which is located at Zhenyuan Zhenyuan County, about 12km west of the Poplar Village cloud List Group. Keywords: 110kv substation construction organization design 1, project profiles and characteristics of 1.1 Project Overview 1.1.1 Project Description: Chen-yuan 220KVA substation is t
3、o address a serious shortage of electricity during the dry season in Southeast Guizhou and other provinces of Guizhou Power Grid to supply power transmission project in an important project. 220KVA substation which is located at Zhenyuan Zhenyuan County, about 12km west of the Poplar Village cloud L
4、ist Group. 1.1.2 Scope of work: voltage level 220/110/35kV. Main Transformer Capacity: Forward 2 * 15MVA, current building 1 * 15MVA, left wall of the possibility of expansion of third sets. 220KV outlet: Issue 2 back to the final eight back. 110KV outlet: Issue 5 back to the final eight back. 10KV
5、capacitor reactive power compensation: Issue 4 * 7200Kvar, the final 8 * 7200Kvar. 1.1.3 the scope of project contract: Based on the construction plans (engineering quantity does not include three one-ping, retaining wall, fences, communications, sports, debugging). 1.14 Geological and geomorphologi
6、cal conditions and weather conditions: Substation area landscape as a dissolution residue mound, the ground elevation of 674 692m, the relative height difference of about 18m. South and Central was quite high, mainly dry; west, north and east side of the three low-lying valley, across paddy fields,
7、brick kilns by brick field effect earth terrain is more disorder. The area of the upper strata of Quaternary residual slope plot of red clay, the lower part of the bedrock is shallow relative to dolomite. Venue for the melting of surface karst groove and groove patterns, development was not obvious,
8、 the stability of non-destructive impact on the site. As the substation was quite high, is not flood affected. 1.1.5 Transport: The substation is located in Zhenyuan County to Shibing County Highway, 300 kilometers away from Guiyang, the county seat about 12 km away from the substation from the road
9、 about 350 meters (blind alley), after entering pit road for immediate construction. Trains accessible town on the large more favorable transport and traffic conditions ideal. 1.2 Project Characteristics 1.2.1 Design Features: a one-time construction completion (leaving room for expansion), electric
10、 built in phases; control room, 110KV relay rooms, telecommunications rooms set up an integrated floor (two to three), other smaller outbuildings; complete fire-fighting facilities, the main change with the water spray fire protection systems. Main Electrical Wiring: 220KV double-bus with a bypass b
11、us terminal, 110KV double-bus with a bypass bus terminal, 10KV sub-single-wire bus. distribution devices: 220KV power distribution installations in medium-sized tube-type bus the positioning phase, 110KV power distribution installations in medium-sized tube-type bus the positioning, indoor switchgea
12、r cabinet power distribution unit. station automation using computer monitoring system plan. 1.2.2 Project Characteristics 1) Construction Features: A, large amount of flat-field project, the total excavation of more than six Wan Fang, fill only 1.4 Wan Fang, Watian suffered a serious imbalance in t
13、he ground equipment and sub-subsidiary structures to build more. B, relatively well-off schedule can be more reasonable arrangements for production. C, ultra-deep foundation in the flat-field before the well, improving co-ordination to avoid secondary excavation. D, the construction of water, living
14、 water difficulties, we have ahead of drilling wells for water. E, earth and heavy workload, a large quantity of concrete works, masonry works, but the amount is not significant. F, quality requirements, construction technology, we have to meet the national power company put into compliance requirem
15、ents. G, fire water system is relatively complex, water spray systems, highly specialized. 2) The installation features: A, are all China-made equipment, a joint venture factory equipment, to installation, commissioning and has caused great difficulties. B, a large quantity of cables, artificial exh
16、ibition place, a longer duration. C, control a large quantity of bus project. D, master, relay room and a large outdoor enclosures. E, Computer Integrated high degree of automation. 3) early delivery of drawings in a timely fashion, is a trilateral project. 1.2.3 Natural Environment: The surrounding
17、s in the past without large-scale site-building, therefore, the local timber processing is not to scale and can supply is too small, and the price is expensive, program-controlled to a large degree of constraining the progress of construction, traffic is not convenience, the average thunderstorm day
18、 53d., the higher terrain of the site, the site around the lower, not flood-wai Association. Reposted elsewhere in the paper for free download Second, the construction site organization 2.1 Field Organization 2.2 The works mainly responsible Resume Huang Xiangdong: 89 years, graduated from Guizhou t
19、o build special civil engineering profession, has served as the company increases the compound layer of transformation of four construction team leader, Shenzhen Meilin become captain of the expansion works, Xingyi 220KVA substation engineering and construction for the captain of farm change the exp
20、ansion of construction team leader, Jiang Jian Duyun construction variable expansion of the captain of Michizane 110KVA substation construction team leader, Kerry changed the expansion of construction team leader Feng Jing Hui (External): 90 graduated from Guizhou to build special civil engineering
21、profession, in the two companies to build four Bureau of Construction Technology has long been engaged for almost a decade, intermediate title, there are construction workers and other documents, certificates. Xie Jianhua: 90 graduated from the Guizhou Electric Power technical schools, long been eng
22、aged in construction site work, civil engineering profession has already been made secondary diploma, certificate and other documents with the construction workers. Rong (External): machinery specialized technical school graduate, has long engaged in the construction site mechanical repair work. Thi
23、rd, the construction site general layout plan Construction of temporary living arrangements outside the station building, production and layout of temporary construction inside the station, of the specific layout see attached (I). 4, the construction program 4.1 Construction Preparation 1) First, ac
24、tinomyces centerline to the wall, location, site grid measurements. 2) Due to the workload of large flat field, using mechanical flat-field; 3) actively cooperate with the construction management department, the local government in the Young compensation, housing demolition and Qian Fen, cutting dow
25、n trees, etc.; 4) do a good job with the local electricity sector of the construction site power installation program; 5) as soon as possible into the access road widening done forever with clinical treatment, to facilitate the transportation of materials; 6) The preliminary work of staff in place,
26、installed the first telephone communication in order at any time and get in touch; 7) According to the site situation, the necessary pre-construction temporary pond (you can use a nearby hill, or in situ trenching), can only be removed after the water supply wells (wells water necessary to pay close
27、 attention to the work carried out) 8) and local reach a lease agreement (for the life of the Provisional Construction puts up) 9) In view of this project as a trilateral project to reach a consensus with the design institute, as long as the information in place of electrical equipment as far as pos
28、sible to ensure timely delivery of construction drawings. However, companies still need the relevant ministries and the Ministry of construction and management, come forward to press; 10) Upon receipt of the construction tasks, the pre-construction workers admitted for the first time to build puts u
29、p temporary living, in order to facilitate the work on the back; 11) as soon as possible and construction management department, institute, Kerry Power Supply Bureau, Chen-yuan County, Zhenyuan County Power Supply Branch, Zhenyuan County Land Bureau, the five Yang Changhe Town Government, the soil t
30、ubes, police station, Poplar Village and all departments in related to leadership and to contact the person in charge of the establishment of friendly relations and cooperation; 12) Construction of the power configuration management staff of about 15 people including construction, installation contr
31、act workers (in transformer-based) 10-15; the construction period to ensure the main construction 110-130 people, mainly electrical construction period to ensure places 60-80 people, This project mainly the construction period (including construction, transformer) to ensure with 200 people. 13) Cons
32、truction Machinery Allocation Table 4.2 The overall arrangement of construction processes the first ground, after the ground; the first construction, after electrical, and debugging; the first comprehensive building (from the control room, 110KV relay room, communications room, etc.) after the subsi
33、diary, after the first main body decoration; the first 220KV, after the 110kv and others; After the first stent architecture 4.3 Construction of the main processes and special processes methods: flat-field mainly consists of pushing of soil, bulldozers leveling, rolling three processes, taking assem
34、bly line; In the framework of the basis of division of 220KV project, in the flat-field process a good basis for the next super-deep, not super-deep part of the foundation, the main consideration in order to manually dig for, trolley transit earthwork. Concrete pouring a large amount of mechanical t
35、ransportation sectors to adopt a mode of transport. In the 220kv foundation and retaining wall construction, due to the local land wood supply (six strains of double-track construction in its territory), in addition to measures to increase wood supply to be used outside of the framework must give pr
36、iority to the basis of 220kV. 220KV structure supports a large quantity of other works of construction is divided into two paragraphs twice for material supply. cable-layer cable were placed, using a computer design. 4.4 The project cost control measures l) Construction Management to take after the
37、first count, dried and then counted to strengthen the sub-projects, Division Engineering, unit project costing and control. 2) Use of two single management, namely, the construction task list and limits requisition. 3) The construction of a professional team on water, improve labor efficiency and re
38、duce the cost of a one-time investment. 4) The strict reward and punishment system to reduce the transport workers and substandard products, to avoid direct and indirect losses. 5) try to avoid the second excavation. 6) Avoid duplication of bad luck. 7) to take individual subcontractors. 8) construc
39、tion of temporary roads was never combine. 9) Component stack space formation compaction, from components to avoid damage to earth subsidence. 10) Mortar and painting to prevent extra-thick concrete floor on the ground. 11) to approach materials and components to strengthen inspection and acceptance
40、, the good material off. 12) Organization of joint trials of electrical and civil engineering drawings, engineering drawings to avoid in the past do not coincide , Resulting in rework problems. Reposted elsewhere in the paper for free download Five . Schedule and construction schedule 5.1 schedule p
41、lanning and requirements Duration period requested: From April 15, 2000 -2001 8 15, a total of 16 months the whole, according to past experience 220KV substation construction experience, strive for April 15, 2001 completed the process of major construction schedule Gantt Chart (see figure II). 5.2 T
42、he construction schedule network diagram See photo 3 Key process duration ensure that: l) carefully prepare pre-construction preparation work, get the construction drawings, the organization of technical personnel, construction personnel to seriously review of the drawings and learning problems are
43、discovered in time and design of contact familiar with the drawings, the correct understanding of design intent 2) In accordance with the progress of construction, coordinate the associated electrical and civil engineering work, to avoid adding unnecessary workload. 3) The company supplies equipment
44、 closely with the Department of Management in advance to prepare equipment and materials required for the works to ensure that the equipment and materials in place in time after the start. 4) The department shall, when the supply of main equipment supplier, equipment must arrive at the scene and des
45、ign Figure in line with the equipment to the scene after the construction team should be carefully checked the device models, prepare records; If factory personnel to the scene to guide the work requirements contacts timely contact with the manufacturers to ensure that Works as planned. 5) The const
46、ruction of the rational organization of work sequence, configuration, and complete construction workers and industrial equipment, construction workers do a good job technical training. Back 6) The works carried out in strict accordance with operating instructions to conscientiously carry out quality
47、 assurance and quality supervision work to ensure the quality of work, eliminating the quality of the accident, to prevent quality defects. Pairs of hidden projects to be completed by the acceptance of the Quartet to ensure that each completed one to ensure that the competent one. 7) the constructio
48、n process, according to the procedure of construction documents and departments prepare records required. 8) To strengthen safety management, to prevent personal accidents and the occurrence of major equipment to ensure the smooth progress of the construction. 9) active use of rationalization propos
49、als and new technologies to improve work efficiency 10) The project of various single-living project, division engineering, sub-projects, all use of network management, the construction process with the construction of small water management practices, scientific and reasonable way the organization works
