veoexrmpzt
Dołączył: 21 Lut 2011
Posty: 371
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Skąd: England
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 Wysłany: Pią 14:27, 22 Kwi 2011 Temat postu: tn requin pas cher qok czy qvko vbl |
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Green quality control of construction phase
Abstract: The greening project basis for quality control of the construction phase, the control principle,[link widoczny dla zalogowanych], control the content, methods and priorities. Key words: green; construction; quality; control 1 based on the quality control of greening works (1) Ministry of Construction, Ministry of Water Resources, Ministry of Forestry , Zhuhai City, Guangdong Province and issued by the construction supervision and regulations, norms and technical standards; (2) The owner and the contractor entered into a formal contract, agreement, documents, and additional contracts and agreements; (3) Contract approval Commercial use of the design drawings, technical specifications, test evaluation criteria, test specifications,[link widoczny dla zalogowanych], etc.; (4) Construction contract works list and description; (5) and the owners issued directives relating to the Project and file; (6) recognized by the supervising engineer to verify the signature approval of the engineering change and report to owners, construction delay, cost claims, subcontracting and other instructions and documents. 2 the principles of green engineering quality control (1) adhere to the (2) adhere to the core of human control. (3) adhere to the prevention. (4) implement the scientific, fair, law-abiding professional ethics, respect the objective laws, scientific, fair treatment quality. 3 green construction quality control of the content 3.1 Earthwork (1) removal and transportation of waste side. According to design documents, construction drawings, technical specifications required removal and transportation range, elevation requirements, the green square and the area of waste removal and transportation hazardous materials all played. (2) removal and transportation of the original ground line before the measurement. Before construction, supervision engineers in conjunction with the contractor on the construction site of the original ground line measured, to determine the amount of earthwork, removal after the re-measurement, measurement data as a measurement basis. (3) without the original construction of the ground line shall not be measured, or refuse to pay refuse to measure. 3.2 shipped back to fill pull back to fill a variety of plant material survival, growth, development foundation. When the contractor to determine the source of land, the site supervision engineer in conjunction with the contractor to the source of stratified sampling of soil and escorted to a qualified laboratory testing sector analysis and the results, PH value, total salt content, organic matter content, soil impurities, must comply with technical specifications and other indicators, indicators fail to notify the Contractor shall be elected or to report the source of soil approved by the supervising engineers soil improvement program approved only after the drawing operation, or refused entry. (1) for soil thickness. According to design drawings and technical specifications, soil replacement tree should be considered the cavernous size of the tree, usually 0.8 × 0.8 × 1.0 m or 1.0 × 1.0 × 1.2 m or 1.2 × 1.2 × 1.5 m; lone point of the exchange and shrub planting soil typically 0.7 × 0.7 × 0.7 m or 0.6 × 0.6 × 0.6 m; close planting shrubs usually 0.5 × 0.5 × 0.5 米 appropriate, technical specifications of the contract specifications should be implemented. (2) soil improvement. Soil improvement is a remedy, according to Guangdong province for green projects around the basic red loam soil condition, soil texture, poor, PH value is low, less total salt, organic matter content is generally low impact on plant growth, Hence the need for soil improvement. Improvement measures: First, increase the amount of organic manure fertilizer, general fertilizer per hectare is appropriate for the 20-30 tons. Second, the strong cohesive soils or peat mixed with fine sand mixed with fine, granular structure and improve soil aeration degrees. Third, deep plowing small rake, improve soil structure. 3.3 pumping station and reservoir engineering (1) guarantee the quality of entry materials. Concrete materials (steel, cement, gravel, rubble,[link widoczny dla zalogowanych], brick, etc.) must meet quality standards. Substandard products may not enter the site. (2) admission materials must be sent under the supervision of qualified engineers to monitor the testing department laboratory analysis, requires a qualified commercial concrete. Determine the mortar mixing, require the contractor at the construction site licensing legislation marked the mixed ratio of various materials, in strict accordance with the ratio mixing mortar, and do strength test, strength who fail to meet the design requirements until the date the rectification. (3) basic masonry pump house. Supervision engineer should focus on checking the base tank elevation, surrounded by columns, then pull bar, pull then stone placement, size is in place, whether there are missing and have less and dislocation, this work should be implemented prior control. (4) masonry walls. Focus on examination of brick, mortar quality, whether the mortar joint and crimp with the design requirements. (5) rooftop water tank wall and steel banding. Supervising engineer must follow the design drawings and atlas control inspection structure, size, number of overlapping positions, spacing, if the design requirements, unqualified contractors who should be ordered to redo or rectification, make do. (6) pumping stations and reservoir wall supporting the roof template. More hidden dangers of this work, supervision engineer should focus on checking the quality of the template, overlapping parts, support and resistance, then pull tendons, then buckle steel is in place, strong strong, strong point is a solid firm, found that quality problems should be promptly corrected, to prevent support is not strong because of mold caused by the phenomenon of inflation. (7) the rooftop and the reservoir wall concrete pouring. Placement, the supervising engineer the whole process should be, all-weather station next to focus on checking whether the concrete mix to meet the requirements, requiring construction workers pouring with the use of equipment with vibration, to prevent the leakage of water leakage vibration, to ensure quality placement. Reservoir wall seepage test should be carried out after form removal, meet quality requirements of the order the contractor to repair, until the compliance date. ( after the end of the main project, to the intermediate examination for examination. In the self-qualified contractors on the basis of tissue sampling qualified Management Group, to invite the owners, contractors and supervision to participate in inspection and acceptance, after passing the three recognized by the signature, and complete the relevant forms and information. (9) wall of external and internal decoration. External wall tile decoration owners of designated products must be used, supervision engineer should always check the quality of tiles and tiling quality, without hollowing, pointing it tight formation pass. Whether the rules for installing doors and windows, lamps are complete, whether the white stucco walls, such as quality problems found should be promptly corrected patch. 3.4 irrigation pipe network (1) guarantee the quality of entry materials. All kinds of pipes and fittings (pipe and plastic pipe), you must use qualified contract products,[link widoczny dla zalogowanych], materials entering the former, the supervising engineer to supply manufacturers must be inspected, whether it is informal manufacturers, the product is three cards are complete (business license cards, product quality certification, product quality inspection certificates), to ensure product quality, testing samples before entering analysis, where the quality indicators reach the national standard and industry standard requirements shall not be admitted. (2) After the entry of qualified pipe, welded to the rust corrosion, rust, antirust paint brush again, asphalt paint two times. Supervision of works should always check whether the rust completely, painting is in place, even, drain brush, brush should require the contractor to fill. Pipe welding bonding. Plastic pipe welding steel bonding, the supervising engineers focus on examination of mouth is aligned straight pipe welding, welding seam is tight, the surface is smooth, scale film is uniform. Plastic pipe adhesive, or sockets, whether solid solid tight, whether playing hair, etc., that fix quality problems should be corrected at any time. (3) pay-off trench excavation. Put the trench lines must be placed in accordance with line drawings and dimensions, excavation of the trench slope should be greater than 3 ‰ above Goushen must be 50cm or more, a variety of valve well, vent wells, expansion joints must be compared with the design drawings consistent, who fail should be repaired. (4) pressure test test test the water spray. Various pipe weld bonding, it should do first pressure test test test the water spray, and make detailed records and found that leakage, blockage in time to find the cause and repair, until the entire sprinkler operating normally, with the design requirements coverage only after the landfill trench. (5) trench landfill. Pipe pressure test test test the water spray functioning only after the landfill trench, the trench bottom should be flat, should be the laying of plastic pipe ditch fine soil or sand, the landfill should be from both sides of the landfill, plastic tube filled buried, should prevent any hard edges of the stones shall not go in the landfill to prevent damage to the pipe, with the landfill should be buried with the practical, to prevent subsidence subsidence. 3.5 and shrub planting works (1) planting hole actinomycetes. Put lines in accordance with design drawings and size of pay-off patterns, soil for tree-shaped hole, hole size of the design specifications should be excavated, usually 0.8 × 0.8 × 1.0 m or 1.0 × 1.0 × 1.2 m or 1.2 × 1.2 × 1.5 meters. Plant shrubs usually solitary 0.7 × 0.7 × 0.7 meters. Shrubs planted close planting generally appropriate channel,[link widoczny dla zalogowanych], Goushen should be 50 cm above, digging planting hole, the bottom diameter should be the same shape appears to prevent the bottom of the pot. (2) points of the exchange and fertilization. Acceptance of tree planting hole digging, the backfill should be fertilizer, no fertilizer shall not planted. (3) seedling order. This work should advance, the contractor selected seedling source, the supervision engineer should be to field-test Feeding field, focus on examination of the contractor selected seedling varieties, specifications, trunk straightness, crown width, pests and diseases whether meet the technical specifications, three certificates are complete (business license, product quality certification, nursery and quarantine certificates), who meet the above requirements before lifter, lifter should also pay attention to soil ball size must meet the technical specifications. Binding to close solid, not loose. To check whether the number of shrub branches meet technical specifications, etc., all of the requirements of these indicators may not pull loading operation.
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