The complete collection of super comprehensive inspection application data of construction units is worth collecting! 3
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Guess what you like: 1
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Engineers need 100% and manpower is necessary! 2
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Copy and check regularly
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From documenter to engineer, it’s worth seeing! 6
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construction points of reverse excavation method VI
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Construction preparation (I) technical preparation 1
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Acceptance data, construction supervisor’s signature, complete specification of terms, collection and standby! 5
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Witness and sample the soil and send it to the laboratory for soil test
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Prepare on-site inspection tools to verify whether the compaction coefficient of backfill meets the design requirements（ 2） Preparation of materials and machines (1) road for vehicles on the construction site and material stacking site（ 2) prepare and transfer the equipment, such as loaders, rammers, cables, lighting equipment, trolley, shovel, and ruler
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construction points i
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The leveled site surface shall be inspected point by point
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This collection of 100 safety data is worth starting (available for reference) to help 2018 safety production month
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Carry out safety and technical disclosure of backfill subdivisional works before construction, and do a good job in elevation measurement and layered thickness calibration
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Site construction data will not be done? Look here, do information is not confused! 11
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3) The backfill shall not contain organic impurities, its particle size shall not be greater than 50mm, and the moisture content shall meet the requirements
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construction points of general layered method II
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The strongest summary of safety office data, which can be used after reading! 14
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If there are no design requirements, the slope in the direction of the drainage ditch shall not be less than 2 ‰
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Balance calculation of excavation and filling shall be carried out before earthwork construction, Comprehensively consider the shortest earthwork transportation distance, reasonable transportation distance and reasonable construction procedures of various projects, do a good job in earthwork balance allocation and reduce repeated excavation and transportation
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construction preparation (1) check the axis and corresponding coordinates in the drawing, the layout of central line and horizontal base point is reasonable, and the axis setting out and elevation measurement meet the construction requirements（ 2) Laser measuring instrument shall be equipped, and elevation and dimension measurement shall be done in time before and during excavation（ 3) Before the construction of foundation pit works, carefully check the survey data of foundation pit design according to the construction design drawings, such as topography, landform, engineering geology, hydrogeology, drilling charts, etc（ 4) Find out the conditions of the project site, including transportation roads, adjacent buildings, pipelines, cable pit foundations, air raid shelters, obstacles and deposits within the construction scope on the ground, water supply, power supply, communication, flood control and drainage system, so as to provide reliable data and data for construction planning and preparation（ 5) Study and formulate the construction scheme of site leveling and foundation pit engineering; Prepare the general construction layout plan and foundation pit earthwork drawing, and determine the excavation route, sequence, scope, design elevation, slope gradient, drainage ditch, sump location, and excavated earthwork stacking place; Put forward plans for construction machines and tools, labor and promotion of new technologies
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construction points of basin excavation method IV
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40 engineering data approval opinions, the most standard version in history! 9
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During earthwork construction, the plane position, horizontal elevation and slope gradient shall be measured and checked frequently
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3、 Process flow IV
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4、 Process flow construction process flow of central island excavation method v
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Remember to prepare these materials for the acceptance of foundation and main structure! 10
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If filling on cultivated soil or loose soil, it shall be carried out after the base is compacted（ 2) The filling earth materials shall be filled after acceptance according to the design requirements（ 3) During the filling construction, the drainage measures, filling thickness, water content control and compaction degree of each layer shall be checked
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The surface slope of the leveling site shall meet the design requirements
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overview of common methods of earth excavation include general layered method, support layered method, basin excavation method, central island excavation method and reverse method earth excavation, which can be selected according to specific conditions in the project
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2、 Preparation description III
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construction points of central island excavation method v
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Construction points of support layered method III
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quality control points and inspection standards 1
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The data archiving, storage, handover and sorting of the engineering department are super complete; 12
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key points of quality control and inspection standards (1) before earthwork backfilling, the garbage, tree roots and other sundries of the base shall be removed, the pit ponding and sludge shall be removed, and the base elevation shall be accepted
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The most complete archive of municipal engineering completion data in history must be collected! 2
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When the earthwork excavation is deep, the construction unit shall take measures to prevent the uplift of soil at the bottom of the foundation pit and avoid harming the surrounding environment
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One inspection point shall be taken for every 100 ~ 400 m2, but not less than 10 points; The length, width and slope shall be 1 point every 20m, and each side shall not be less than 1 point
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In order to ensure the backfill quality, it must be cleaned up
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The earthwork shall not be stacked at the edge of the foundation pit
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Super cow! See how the documenter novice makes a beautiful project data! 15
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Inspection standard part II earthwork backfilling construction I
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Division, capacity and sampling summary of inspection lots! The acceptance form of 76 common inspection batches is attached! 13
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Copy and measure the filling elevation line, and divide the backfilling thickness of each layer as required
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The bitterness of the building data clerk, let’s see what the female man said; 4
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My data is free under [heavy benefits] part I earth excavation construction I
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Before excavation, surface drainage and groundwater level reduction shall be done well
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The backfill soil shall not contain plants, bricks and other sundries
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Tips: click “civil engineering resource sharing” at the top of ↑ to pay attention to the joining point
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What data does the supervisor need to collect and sort out from commencement to completion? 8
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preparation instructions II
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The filling thickness and compaction times shall be determined according to the soil quality, compaction coefficient and machines and tools used
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Attention, documenters, constructors and technicians! It is difficult to understand the preparation of construction technical data in three minutes; 16
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Your forwarding is our greatest support
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Civil engineering resource sharing, a platform for rapid promotion of civil engineering profession! 3
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Reliable protection measures shall be taken for horizontal control piles and leveling control points
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The acceptance data, the supervisor’s signature, and the standardized language are so professional! 7
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key points of construction v
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The 4-stage workflow of qualified documenters can get twice the result with half the effort
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Engineering sunflower Dictionary (wechat version)
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