Megatro 230kv Double Circuit Steel Monopole

• Usage: Crossing Tower, Tension Tower, Angle Tower, Terminal Tower, Transposition Tower, Branching Tower, According to Client Requirements
• Conductor Circuit: Double Circuit
• Certification: ISO
• Materials: Steel
• Standard: Nonstandard
• Style: Independence Tower
• Model NO.: MGP-230KV
• Structure: According to Client Requirements
• Design Software: Pls
• Accessories 1: Power Fitting
• Accessories 2: Insulator
• Accessories 3: Cable and Conductor
• Accessories 4: Earth Wire and Opgw
• Accessories 5: Aviation Light
• Accessories 6: Tower Foundation
• Accessories 7: Lightning Rod and Tower Earthing Kits
• Accessories 8: Design Services
• Accessories 9: Other Services as Per Client
• Transport Package: Export Standard Package
• Specification: As per client requirements
• Trademark: MEGATRO
• Origin: Shandong, China
• HS Code: 73082000
• Production Capacity: 50000 Tons/Year

Product Description

MEGATRO 230KV DOUBLE CIRCUIT SUSPENSION STEEL MONOPOLE
table 1-1 specification parameter table

Project name	230kv transmission Line )
Voltage level	230kv	Seismic intensity
Main meteorological conditions		Maximum design wind speed of M / sec.
Basic type	Plate inclined Column Foundation ; The foundation is connected with the tower by inserting an angle connection.
Tower type	230kV :daxp\ dbxp\ dcxp\ ddxp\ ddexp\datr, total 283 base.
Wire type	230kV: ACSR/GA-1272MCM
Ground type	230kV: one uses the high strength-74.50 sq.mm, one uses the core OPGW-105 Optical cable.

 

2.2 Scope of work

the work scope of this project is XE Pian Xe Namnoy hydropower PROJECT Lao PDR ( package1:115kv/230kv Transmission Line ) corresponds to all the work.
The work undertaken in this project includes, but is not limited to:
2.2.1 , the construction of all materials, equipment procurement, transport and on behalf of the custody;
2.2.2 , all civil engineering, installation, acceptance and handover work;
2.2.3 , Line The clearing of road passages;
2.2.4 , the exclusion of the UXO(unexploded ordnance) within the line corridor and the corresponding safety and security work of the exploration design, management and construction personnel, provide UXO exclusion report.
2.2.5 , construction and transportation of temporary road, bridge and culvert laying;
2.2.6 , the requisition and compensation of the temporary land requisition required by the construction;
2.2.7 , commissioning and trial operation;
2.2.8 , Skec issued PAC Pre-engineering line corridor and engineering body care and maintenance work;
2.2.9 , warranty period of warranty work;
2.2.10 , completion of data transfer work;
 

2.3 Project management characteristics and overall requirements

2.3.1. Project Management characteristics

2.3.1.1 The construction Management mode of this project is the construction project management.
Our company will fully assume the contract stipulated within the scope of the project Construction organization coordination, project construction quality control, Project construction safety control, project construction schedule control, project construction cost control, project construction contract management, project construction information management, and achieve safe civilization construction, environmental protection objectives. At the same time, coordinate with project management of EPC and supervision engineer, carry out general contract and engineer's instruction to the project management. The main features are:
1 ). The project manager responsibility system, according to the company's legal person authorized, the project manager to fully perform the construction contract, and the entire project safety, quality, progress, civilized construction, environmental protection, cost to the company manager.
2 ). The project department is in line with functional project management organization settings.
3 ). The company appoints a deputy manager to coordinate the relevant functional departments of the company, responsible for providing professional guidance and logistic services to the construction project.
4 ). The project department specially set up external Affairs Department, responsible for external coordination work: green compensation, land requisition and so on.
5 ). Civilized construction is the important control content of this project, the project department specially sets up the safe civilized construction management task, is responsible for the safe civilized construction management work full-time.
6 ). The project manager and the construction team sign the safety guarantee responsibility, the construction captain and the construction team personnel sign the Safety guarantee Liability agreement, will the company internal safety management stipulation duty layer decomposition, implements to the person.
7 ). The implementation of standardized management, before the commencement of the establishment of a sound management system, clear responsibility, implementation of the person, the construction phase by the project department responsible for supervision and assessment.
8 ). Using project software to carry out the construction progress, the cost status dynamic control and the statistic report work, select through the specialized training study and the examination qualified personnel, as the specialized Project software operator, the software code according to the unification request.
9 ). With a sound information management system and equipment to ensure timely communication with the general contractor.

2.3.2. General Requirements

2.3.2.1 The overall requirements for the construction management of the project:
A. to comprehensively complete the safety, quality, time limit, efficiency, civilized construction and environmental protection objectives required by the general contracting;
B. equipped with high-quality construction management personnel and construction personnel;
c. to formulate a comprehensive and rational planning;
d. the establishment of strong, efficient, adaptable, strong implementation of the organizational structure;
E. to improve the practical and effective management system;
F. have complete, true, neat construction record;
G. establish a timely, accurate and smooth information communication channels.
Finally achieved:

Serial number	Administrative name	General requirements
One	Quality objectives	Strictly implement the laws, regulations and rules and regulations and the main contract requirements for the quality management of engineering construction in China and Laos, and subject to the requirements of the main contract. Meet the quality requirements of the main contract.
Two	Security objectives	No personal death accidents occur, no major equipment, major construction machinery damage accidents, no major fire accidents, no major traffic accidents, no major environmental pollution accidents and major collapse (collapse) accidents, no large area of infectious diseases and collective accident poisoning. To eliminate the general safety accidents, do not occur in general and above equipment accidents, do not occur in general and above fire accidents.
Three	Progress target	adhere to the "Project progress compliance with safety, quality" as the principle, actively take appropriate measures to ensure that the project opening, completion time and project milestones progress plan on time completion. Commitment to the construction of the project in 2018 years ago completed.
Four	Environmental objectives	In the construction process strictly abide by the Laos state and local laws on environmental protection and the relevant provisions of the contract, and should be in violation of the provisions of the above-mentioned laws or contracts caused by environmental damage and personnel casualties and property losses bear full responsibility.

 

4.2 Construction Progress Plan and compiling instructions

4.2.1 This schedule is based on the master plan and the construction resources invested by our company.
4.2.2 The process schedule of the project has taken into account the weather effects of various seasons in the construction area, and the vacation and rest time of the construction staff have been taken into account during the construction period of each project.
4.2.3 according to the schedule, the time requirement for the design drawing:

Serial number	Drawing name
1	1. design specifications and drawings,2. flat section positioning diagram, 3. Tower Schedule,4 Tower and basic schedule,5. tower Base structure diagram, 6.Equipment Material Table
2	Tower Structure Chart
3	1. electromechanical construction drawing,2. assembly diagram of insulator string

4.3 Horizontal Chart of progress plan

4.3.1 Construction Progress Plan horizontal chart (see Figure 1)

 

5 , Quality Management system

Quality Security
1 responsible for the preparation of the project Quality Plan, quality assurance measures, clear quality control points of the implementation of the rules, and inspection, supervision and implementation of the construction team.
2 responsible for on-site quality inspection and management work.
3 under the leadership of Project manager and project chief Engineer, responsible for the normal operation of engineering quality assurance system.
4 responsible for organizing, carrying out quality inspection, quality analysis, quality statistics, collecting and collating the quality records of the project. The transfer of all kinds of information complete, accurate records, the true writing neatly, in line with the norms.
5 ) actively cooperate with supervision engineer to do site supervision work, cooperate with technical department to improve construction technology, cooperate with engineering supervision Unit to carry out intermediate and completion acceptance of project quality.
 

 Quality control measures

Quality assurance system and block diagram
1 ) earnestly implement the quality standards, establish and improve the quality system. In order to ensure the continuous and efficient operation of the quality system to achieve a national quality project objectives, the establishment of the project manager and project chief engineer as the core, the relevant departments to participate in Quality management team, and actively carry out excellence activities to carry out comprehensive quality management and QC activities to ensure that the project quality excellence goals. Quality assurance system See Figure 5-1
2 To develop practical quality process control procedures, so that each construction link is in a controlled state, each process has a quality record, the construction of the entire process has traceability, so that quality management to standardize.
3 ) set up a sound quality inspection agencies, the project set up the Ministry of Quality, with rich experience in the construction of professional quality inspection Engineer 1 , the construction team are equipped with full-time quality Inspector 1 ; In the construction process, Top-down according to the "Follow-up inspection of a random check" and "self-test - Retest - Special inspection "and other two levels to carry out quality inspection tasks." All categories of personnel to achieve the same responsibilities, the implementation of quality one vote veto system. In strict internal inspection system on the basis of serious acceptance of the general contractor and Supervision Engineer supervision, and from beginning to finish closely with, strict compliance.
4 according to the concrete content of the construction work of this project, the working procedure diagram of the main project in the construction process is drawn 5-2-figure 5-7.
 
quality control of key processes
In view of the construction environment and engineering characteristics of the engineering line, according to the quality characteristics, key parts, weak links and factors affecting the time limit, according to the principle of quality control point, the management is centralized by QC engineer, and the technical department is responsible for directing and implementing, so that the process is in good control condition to
 Prediction and preventive measures of engineering quality weakness
    According to the specific characteristics of the project, combined with previous project construction experience, forecast in the following aspects of the impact of the project quality of the weak links, through the analysis of the corresponding measures to implement the project construction, to ensure the quality of construction.

Process	Weaknesses	Pre - prevention and application
Site Transport	Sand and stone transport, soil and debris easily mixed	1 , reasonable choice of transportation mode, reduce transport links 2 , stacking site, away from debris stacking 3 , the measures to take the upper berth cover by the stacking material 4 and improve the quality consciousness of transportation personnel
Basic Engineering	The foundation pouring system produces the pock, causes the vibration to not complete, runs the pulp, forms the foundation honeycomb pock	1 , strengthen quality consciousness education and carry out technical disclosure 2 , strict control of water and cement ratio, mix ratio 3 , using concrete mixer to improve the workability of concrete 4 , personal vibration, supervision and inspection of special personnel 5 , template regular trimming, reduce the joint gap
	The top of the foundation has insufficient pre elevation value, which leads to the inner inclination of the force direction behind the erection of the Tower Group.	1 , the preparation of basic construction work instructions, the basis of each base of the tower to raise the value of the site to control the construction personnel. 2 , the foundation pouring system, the strict control foundation top height difference, after pouring the system completes again reviews the foundation top level the elevation value.
Grounding Engineering	Grounding resistance is not easy to meet design requirements	1 , the size of the grounding groove after excavation is strictly controlled 2 , the use of pure soil backfill and tamping 3 , if necessary, increase the laying length of the grounding body properly
Tower Engineering	Deformation is easy when hoisting towers	1 and reasonable arrangement of hanging point position 2 , tying up the wood on the tower 3 , hanging point mat small square wood and hemp packet spacer 4 , strict control of lifting weight 5 , strict monitoring, to guard against hanging material hooks
	Bolt tightening torque is not easy to meet design requirements	1 , the implementation of liability contracting 2 , lengthened wrench fastening 3 , quality Inspector Force Torque Wrench Inspection
	Pre-deflection of the tower does not meet the requirements	1 , tower deflection control from the foundation. According to the number of tower rotation angle and design, construction experience, in the basic construction work instructions clearly given the elevation value, and reported to the supervision and approval. 2 , the foundation pouring system strict control foundation top level difference. 3 , the Iron Tower group before the inspection of the basis of the high value of the basic construction work instructions in accordance with the requirements of the lifting value. 4 , the line, to ensure that the tower to the force in the opposite direction side tilt isgreater than 0, and: The followingcorner tower ≤3%, above the corner tower ≤5%.
Rack Line Engineering	Wire wear and wire quality	1 , handling and transportation in the process of taking protective measures 2 , draw up line measures, clear all kinds of tower-type line pulley hanging position and accessories installation Protection wire measures 3 , strengthen the wire protection , reduce the contact between the wire and the span frame 4 , the towers, the crossing point, the dangerous point of strict surveillance 5 , the coil should be set up to monitor the original defect of the conductor to enter the line
	Wire SAG	1 , reasonable selection of observation files 2 , set up radian adjustment group, the person is responsible for

5.5.3 quality target Material guarantee

1 , to the important material our company will make the following quality management work well
In order to ensure the quality control and processing progress of the product formation process, our company will send the competent personnel to the factory for supervision, and do the following work:
 . Factory inspection, reminders, shipping, shipping visas, etc.
 . To supervise the physical and chemical tests before the factory, the Appearance quality inspection project is complete, the indicators meet the standard requirements, or not shipments.
2 , invite the general contracting organization's product verification
 . by the delivery clerk in accordance with the bill of lading in the place of arrival verification;
 . Warehousing Verification: In the Site center material station to check, verify product packaging, model, specifications, quantity, factory quality assurance information is in line with the contract requirements, verify the completion of semi-finished products, finished product verification record sheet, and to participate in the verification of signatures.
 . the identification of a product that is missing, corrupted, or not applicable should be quarantined when verified.
 . The material to be transported to the site should be properly kept and marked, and the transportation process should take proper precautions to prevent damage.
 . The quality problem that is not our responsibility found in use shall be submitted to the general contractor and the supervising engineer in time for timely processing.
3 , the quality assurance measures for the self-purchased land material
 . Procurement of cement
According to the following requirements of the manufacturer for evaluation, fill in the evaluation records of the contractor, and the background of the evaluation of the general contractor or supervision engineer validation, to be approved before the signing of the procurement contract:
A. products through the Chinese Cement Product quality Certification Committee certification;
B. the qualification meets the requirement, the commercial prestige is good;
c. a production permit issued by a state;
d. a pilot institution approved by a provincial regulatory body;
E. Sampling The products, samples sent to the supervision and approval of the testing institutions to carry out the test, after the issuance of a report;
Purchase: Each batch of stock, can not exceed the specified number of samples, when the actual use of more than the sample representative quantity, then the subsequent procurement should be resampling test.
Delivery should be carefully inspected to ensure that the actual use of cement and samples of the same, at the same time to the manufacturers to obtain quality certification information, and properly preserved.
(2). the purchase of aggregates
A. Shangpa: In accordance with the quality of reliable, supply capacity to meet the construction needs, reasonable price, construction and transport more convenient principle of the primary material field, on-site investigation found that the project gravel collection point can choose nearby sand and gravel field.
B. Sampling in accordance with the provisions, send party A or supervision approved testing institutions for inspection, after passing the test report, fill in the evaluation records of the contractor, and the evaluation data submitted to the first Party (or the supervision engineer) for approval, approved to determine the material field for the qualified subcontractors, and sign the purchase contract with it.
c. after the cement, aggregates determined, immediately carry out the mix design (party a commissioned or approved by the supervision engineer of the testing institutions).
d. The actual use of the sand, stone must be in line with the sample, when the actual dosage may exceed the sample representative of the bulk or the quality of doubt, must be immediately resampling and the mix design.
(3). the purchase and processing of rebar:
A. through the investigation, select the qualified national fixed-point plant or commercial reputable suppliers to determine the preliminary distribution.
B. from the current batch of products of the plant, according to the standards of sampling, sent by the supervision or the general contractor approved testing institutions for inspection, after passing the test report, the sub-contractor evaluation, and the evaluation data and test report to the general contracting or supervision units, after approval, the plant identified as qualified subcontractors, To sign the purchase contract, clear the time of delivery, quality requirements, after the problem of handling and so on.
c. the actual use of steel must be consistent with the sample submitted, to the quality of doubt, the immediate re-sampling inspection.
d. steel Bar processing classes in accordance with the design drawings for processing, processing completed by the supervision engineer after the approval of the party can be used for construction.
4. material transport, custody, protection, identification
(1). Transport of Materials
A. materials, equipment, the original packaging intact, according to the characteristics of the material to choose appropriate protection measures (such as mat, soft, lashing method, etc.).
B. the load height and load quantity are reasonable.
c. The fulcrum of slender pieces is set up to meet the rules.
d. according to the road condition, the speed is controlled strictly.
E. small operation and unpacking, there should be protection against damage, grinding injury, dirty and other measures.
F. Transportation and handling of materials, such as explosives, for which special transport requirements are required.
(2). Storage of Materials
A. The material should be inspected before warehousing and storage after qualified.
B. cement, gold and other small materials stored in the library, cement should be stacked, the bottom should be set moisture-proof cushion layer. Steel, tower, wire and other bulk materials can be stored in the open air, the bottom should be a cushion, and Fangyubu cover.
c. all material storage, should consider the prevention of corrosion, deterioration measures, the general contractor or supervision of the requirements, the storage method for its approval.
(3). identification, protection
a The general materials for the listing logo, marked model, specifications, origin, use of the site, such as the logo card with galvanized iron sheet.
b special Materials of steel, should be colored logo, processing, pay attention to the original identification of the maintenance of restoration or transplantation.
C To the material station and on-site materials, to set up special care, attention to fire, anti-theft, to prevent damage to external forces.
D the procurement of inflammable and explosive articles shall be carried out in accordance with the relevant laws and local public security departments, and stored in the dedicated warehouse, with special care, to be used, issued, according to the "safety" and the company "inflammable and explosive substances and chemicals management procedures," the relevant provisions of the implementation.

5.5.4 Technical preventive measures for quality objectives

1. before the commencement of the construction drawings for careful reading, participate in the construction unit organization of the Joint Inspection, the implementation of triage minutes, really understand the design intent.
2. the timely preparation of work instructions and quality assurance measures to participate in the construction of all personnel training and technical disclosure.
3. before commencement of each process, the first process pilot, and invite the project legal representative, design representatives to participate in further verification and determination of construction technology, and to enable operators to fully understand and master the construction process.
4. the relevant professionals often in-depth on-site inspection of the implementation of the work instructions, in accordance with the requirements of the company's procedural documents to conduct periodic evaluation, to inform the results of the evaluation, Jiangyoufalie.
5. at any time to collect the project legal representative, design representatives of the construction quality suggestions, suggestions, implementation of quality improvement.
6. Inspection of concealed works: No part of the works shall be covered or concealed without the approval of the contractor's engineers, and the supervising engineer shall be assured of sufficient time to inspect and measure any such works which will be covered or concealed, And any part of the project will be placed on the basis of the inspection. Whenever any engineering part or foundation is ready or ready for inspection, notify the supervision engineer in time to check, without undue delay, the implementation of a covert engineering visa system.
7. Review of concealed works: when the contractor's engineer at any time directs the stripping of a part or part of the project or the opening of it in or through it, I shall immediately execute and cover it again.
8. conscientiously implement the "Three inspection system", the construction team of the project in the various inspection items must be 100% in accordance with the process of self-inspection, and make a record of self-check, on the basis of the self-test, the project department according to the 100% Organization recheck ( to the sub-item ), after the retest qualified, reported to the Company to organize special inspection, the rate of 30% above, after the special inspection, to the general Contracting Representative to submit a written application, the stage ( Completion ) After the acceptance of qualified to the next procedure.
conscientiously implement the national laws and regulations on occupational safety and Health and environmental protection, and the policy of occupational health, safety, health and environmental protection of the company, establish and improve the safety risk mechanism, and conscientiously implement the safety responsibility system at all levels of safe and civilized construction, and ensure the safety and health of construction personnel Standardize the working environment of the construction site, strengthen the safe civilization construction, realize the safety target of this project.
Company Occupational health and safety and environmental protection policy:"Safety First, prevention, comprehensive management, people , cherish life , care for health , environment ; " Civilized construction , orderly , continuous Improvement , the pursuit of excellence.

6.1 security objectives and decomposition

The project safety objectives are as follows:
No personal death accidents occur, no major equipment, major construction machinery damage accidents, no major fire accidents, no major traffic accidents, no major environmental pollution accidents and major collapse (collapse) accidents, no large area of infectious diseases and collective accident poisoning. To eliminate the general safety accidents, not to occur in general and above equipment accidents, do not occur in general and above fire accidents.