1. Detailed design of comprehensive drawings of basement pipelines
In response to the requirements of comprehensive and refined management and control of the group's basement pipelines, the project department carries out full-cycle basement pipeline construction management from the aspects of early project bidding, drawing deepening design, construction process control and refined quality improvement, and strives to create a basement with excellent quality and beautiful appearance for the owner. In the technical data and technical review of the preliminary project bidding, the refinement requirements of the basement comprehensive pipeline are clarified, and the detailed design of the construction drawings is strictly controlled before construction.
1. Deepen the principles and steps
1: Familiar with various professional drawings, installation, structure, architectural professional drawings, etc., understand the structural form, basement floor height, structural beam size, beam bottom to completion of the net distance between the floor, column spacing, column width, parking space layout (parking space size, runway, etc.);
2: According to the elevation requirements, determine the elevation and hierarchical relationship of the pipelines of each system in the basement, and ensure that the minimum distance between the installation equipment and the floor space is ≮ 2.20m, and the main lane is ≮ 2.35m;
3: The principle of pipeline arrangement: small pipe to avoid large pipe, pressure pipe to let no pressure pipe, water pipe to avoid air pipe, electric pipe/bridge should be above the water pipe, above the driving lane to avoid the appearance of air pipe and main pipe, to ensure that the garage is overall simple and clean.
2. Organizational structure
1: Project Engineering Department: Organize the construction unit to review the drawings in the early stage to determine the key and difficult points of detailed design and later construction; Clarify the installation and acceptance specifications and the refined management requirements of Shimao Group; Coordinate and solve construction problems between various units during the construction process.
2: Construction unit: the executor of drawing deepening
3: Project design: solve the problems in the drawings and review the deepening drawings of the construction unit;
4: Supervision: supervise and control the on-site construction during the process to ensure that the on-site construction meets the requirements of deepening drawings and national specifications.
The seven business forms of the plot are 6-storey E villas and small high-rises, the building spacing is not large, in the case of meeting the function, as far as possible to lay the pipelines along the wall, beam, column direction, in rows, layered arrangement, so as to achieve the requirements of many pipelines without chaos, chaotic and orderly arrangement, clear layers, reasonable direction, proper handling of pipeline intersections, and beautiful installation.
1) Arrange ventilation duct beams on the façade as much as possible, and the main air duct should not cross with the rows of main water pipes and bridges on the plane; When the water branch pipe or electric professional bridge and the air pipe branch intersect, the water pipe and bridge can be used to turn up from the beam.
2) The water pipe main and the branch pipe are arranged on different standard levels to take over.
3) Electric professional bridge layout: use the plane space as much as possible, arrange other pipelines in the electric bridge, if there is a situation of crossing with the water pipe, the electric professional bridge should be arranged in the upper layer of the water pipe.
Second, the comprehensive construction control of basement pipelines --- model first
1. It can detect the comprehensive design effect of pipeline deepening, and through the practice of model construction, it can reflect the shortcomings in the deepening drawing, find shortcomings, and carry out rectification.
2. It can effectively test the management level of the construction party, and through the model construction, the management coordination ability of the construction unit and the management level of quality progress can be checked.
3. For the completed model, make technical disclosure to the workers to ensure that the general surface is consistent with the sample.
The pipeline construction of each specialty should be comprehensively considered, and the coordination and cooperation between the various specialties should be organized in accordance with the relevant construction specifications and process nodes. When installing pipelines, it is necessary to install the uppermost pipeline first and then install the lower pipeline, install the inner pipeline first and then install the outer pipeline, install the larger pipeline first and then install the smaller pipeline, etc., so as to avoid the installation of the later pipeline after the installation of the pipeline first, resulting in difficulty or inability to install the later pipeline. With line construction, to ensure that the pipeline is completed horizontally and vertically.
1. The air duct larger than 1.2m needs to increase the lower spray, under the premise of meeting the specifications, try to put the lower spray on both sides of the walkway (or both sides of the parking space) to ensure that the lane passage height is higher;
2. Ensure that the spray is set symmetrically on both sides of the road;
3. During the construction process, the construction unit is required to do a good job in the protection of finished products to prevent cross-contamination of coatings and paints.
Third, refined quality improvement
Fourth, on-site excellent practice display
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