It is worth paying attention to the whole process of policy, planning, financing, design and construction from taking land to building a good temple, and the necessary skills of the abbot of a temple
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If you have any problems in the process of building the temple, please leave a message
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Click to ask the paradox of speed in Japan
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Master said: “knowing shame is close to courage, learning is close to knowledge”..
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Vanke, the leader of the real estate industry, always pursues the most cutting-edge construction technology, and has sent technical elites to study in Japan for many times
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Mr
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Xu Xiaoming of Vanke has found the following paradox: today, we will use Mr
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Xu Xiaoming’s achievements to reveal the reasons….
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Study in Japan Japan main body construction 1
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Japan main body construction process 2
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Japan main body construction process 3
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Japan template engineering setting out: professional subcontracting sets out control line, template subcontracting sets out template positioning line according to control line
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Setting out sequence: template installation: template subcontracting setting out → template gasket installation → spacing no more than 500mm, Confirmation of gasket elevation → summary of template assembly features: 4
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Japanese steel bar Engineering @ @ @ type and strength distribution diagram illustrates the strength and diameter of main reinforcement of each layer of beam and column @ @ @ steel bar type and strength grade color identification, through different colors for steel bar type and strength identification @ @ off-site processing and on-site binding: after the completion of column steel bar binding, it is hoisted to the working face and passed the inspection Sleeve connection; beam reinforcement binding and beam end reinforcement anchor installation are completed on the ground, and hoisted into the formwork after the erection of the working surface, and @ @ beam reinforcement butt welding connection @ @ beam, column and shear wall reinforcement joints are all in the same section
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5
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Inspection before construction of concrete engineering in Japan: the concrete slump, air content and temperature in the concrete are detected by a third party, and the concrete sample is taken
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Disclosure before pouring pouring pouring sequence vibration requirements concrete construction technology: no pipe installation → peripheral finished product protection → garbage cleaning → reserved hole inspection → formwork hanging at different elevation floor joints → concrete construction inspection → formwork spraying and wetting → releasing pipe moistening mortar before pouring → pouring and vibration → striking formwork and observing formwork change → concrete initial leveling → concrete leveling → cleaning of contaminated parts → concrete construction Fine leveling → concrete calendering → maintenance → formwork removal → polishing and repair → strength test 6
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Comparative analysis of work efficiency statistics in Japan: from the statistical results of work efficiency data, although there is a gap, it seems that the gap is not very big; but if we analyze from the formation process of work efficiency, it is not so simple and optimistic
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Domestic migrant workers usually go to work at 7 o’clock, take a lunch break for 1 hour, and leave work at 6 o’clock in the evening for 10 hours
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However, the effective working time in Japan is 6.5 hours per day
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Assuming that the number of labor input is the same and the same amount of work is completed, why can Japanese workers achieve better work efficiency with relatively short effective working time per day? It shows that their efficiency is very high! Next, we will analyze it from five dimensions of human, material, machine, management and supplier resources
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1
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Before people do their work, they think about problems in detail and decompose a work or a problem
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Each person is only responsible for a relatively single work, that is, special personnel and special people do special things
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The work is simple, skilled and efficient
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Everyone is like a process on a production line, and finally completes the work through simple mechanical labor
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For example, the guofen Temple site has a special setting out subcontract
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Everyone should do their own work conscientiously and responsibly, and be responsible for the next process with their own work results, so as to speed up the connection and connection between processes, especially in the aspect of site clearance after work
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Team spirit and sense of responsibility – finish the work according to the schedule
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2
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The quality of materials used is good, which can improve the production efficiency virtually: for example, the formwork is made of imported materials from Indonesia, which can be recycled for many times without deformation
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At present, the formwork used in guofensi project has been recycled to 14 layers, which can still be used, and the forming effect is good; the disposable split screw, quick dismantling support system, etc
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have achieved remarkable results in improving efficiency and preventing leakage
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3
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The machines and tools carried by the machines and equipment are convenient and fast, easy to operate, and have a high degree of precision, which is convenient for the quality control of the construction process; 4
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Management mechanism 5
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Due to the high level of productivity of the supplier resources, the supplier’s level is also high, only need to provide drawings or demand, can provide processed templates and prefabricated components, while the remaining work only needs to be carried out Field assembly can greatly reduce the workload of field construction and improve the construction efficiency
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2
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Decoration process and inspection points 1
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Japanese hardcover process 2
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Japanese hardcover inspection points ALC board installation} pay attention to the joint, the treatment of door and window frame installation} pay attention to the elevation and perpendicularity; gap sealing, waterproof treatment glass installation} carry out water spraying test, 5m / time;} full inspection;} image results are retained
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Internal thermal insulation of spraying, thickness and range of spraying, and finished product protection
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Finished shower room & LGS system} pipeline connection, drainage slope} reinforcement treatment of support and opening parts, installation of light gypsum board on overhead layer} elevation, flatness} splicing of joint parts} gypsum board base treatment} bonding parts of different materials and light partition boards} splicing of joint flatness} porch tile and skirting line pavement} surface treatment Evenness floor pavement} joint} 3
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Comparative analysis of construction period between Japan and China} 1
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Interspersed decoration
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The main body of guofensi project is on the 12th floor, and the decoration of the 2nd floor begins
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The second floor from the bottom of the main body has been finished when the roof is capped, and all the fine decoration is completed when the roof is completed
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However, due to the limitation of process acceptance and many other factors in China, the decoration construction is generally carried out after the main body acceptance; and due to the existence of masonry and other wet operations, the matching pre construction needs to be considered
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Second, the construction without external support can be adopted because of the use of laminated Yang platform, which can save the time of early erection and later dismantling
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PCF board and profiled steel plate are used
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PCF board is used for balcony board and floor slab
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Profiled steel plate is used for stair step to save formwork time
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4
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All concrete structure, no filling masonry
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5
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Si separation system is used for decoration, no pipeline slotting, and low pressure for garbage removal and transportation
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6
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Spray internal thermal insulation, but not external thermal insulation
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7
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Management factors affect the construction period
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Source: real estate elite lecture hall
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The copyright belongs to the original author and the original source, if the original copyright owner does not agree
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