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Technical disclosure of pavement and ancillary works construction The width of the masonry joint on the surface of the positioning masonry shall not be greater than 4 cm. The inscribed circle of three adjacent stones on the masonry surface shall not be more than 7cm, and the staggered joint between two layers shall not be less than 8cm. -
Technical Disclosure Card for Construction Quality of Unit Works of Pavement Base Disclosure When the natural gravel meets the specified grading requirements and the plasticity index is below 6, it can be directly used as the base course. For the natural gravel whose grading does not meet the requirements, it is required to screen out the oversized particles or add another kind of gravel or sand to make it meet the grading requirements. -
Construction technical disclosure of pavement maintenance works of an expressway G18 Rongcheng Urumqi Expressway starts from Rongcheng City, Weihai, and enters Hebei through Wendeng City, Yantai City, Weifang City, and Dongying City, with a total length of 528.9km in Shandong; It is an important part of the main framework of the "five longitudinal and four horizontal, one surrounding Shandong" highway in Shandong Province, and plays an important role in the major coastal cities of Jiaodong Peninsula and the port dredging channel of the northern port group of the peninsula, greatly driving -
Technical Disclosure Card for Construction Quality of Cement Concrete Pavement Disclosure Unit Project Before construction, the raw materials such as sand, stone and cement reinforcement used for concrete pavement must be sampled for test and analysis, and the concrete mix ratio data report shall be obtained through the test; At the same time, review the plane and elevation, and check the position and elevation of the formwork to make them conform to the provisions of relevant national standards and specifications. -
Technical disclosure of formwork construction Wall column formwork: when snapping the position line of wall formwork, the extension of both ends shall be 500mm each time, and another formwork inspection control line shall be snapped 200mm outside the wall location line. -
Technical disclosure of chimney construction The construction procedure of hydraulic slipform method without derrick is: site leveling+surveying and positioning, setting out → foundation pit excavation → foundation and waterproof layer construction → earthwork backfilling → cast-in-place construction of cylinder below the flue opening → installation of slipform device → cylinder construction → lining masonry → installation of auxiliary facilities → installation and removal of slipform → civil engineering completion and acceptance. -
Technical disclosure of silo construction The foundation construction method is the same as the section "11.1 Chimney works". Only when the raft length of the silo group is very long (more than 40m), it should be considered to leave a through post cast joint belt at an appropriate part in the middle to avoid temperature shrinkage cracks and facilitate the construction of sectional flow process; For raft foundation with a thickness of more than 1.0m, it shall be considered to reduce cement hydration heat and concrete pouring -
Technical disclosure of masonry construction Contents of disclosure: 1. Preparation basis 1. Construction blueprint and drawing review record of the project. 2. Current national technical standards, atlases, construction acceptance specifications, engineering inspection and evaluation standards; Unified Standard for Constructional Quality Acceptance of Building Engineering (GB50300-2013), Code for Constructional Quality Acceptance of Masonry Structures (GB50203 -
Technical disclosure of subgrade construction Contents of disclosure: 1. Construction preparation: 1. Main mechanical equipment: bulldozer, excavator, loader, grader, roller, sprinkler, dump truck, etc. 2. Operating conditions: (1) Resurvey the centerline and traverse of the subgrade, set out the side piles of each design section, measure and draw the cross section, and check the design quantities of the subgrade. (2) According to the excavation, filling and -
Construction technical disclosure of a door and window project II Construction method 1) Profile doors and windows 1. When installing doors and windows adjacent to the same wall, pull the horizontal line to make the installed doors and windows level on the left and right, and the elevation is uniform. 2. Before installing the hardware fittings, check whether the doors and windows are firmly installed, whether the opening is flexible, and whether the closing is tight. If there is any problem, install it after adjustment. 3. When installing hardware accessories, pay attention to all kinds of -
Technical disclosure of foundation engineering construction Formulate excavation plan, determine reasonable excavation method, construction sequence and slope protection measures, and select appropriate construction machinery. -
Construction technical scheme of pavement works This data is the construction technical scheme of pavement engineering, which is valuable and detailed for reference. -
Construction technical disclosure of subdivisional works Switch wiring: the switch cutting position in the same place shall be consistent, and the operation shall be flexible, and the contact contact shall be reliable. The phase lines of electrical appliances and lamps shall be controlled by switches. -
Construction technical disclosure of a masonry project Placing and correction of blocks: Before building blocks, the floating dust and sundries on the surface shall be cleaned up. The blocks shall be placed from far to near, from bottom to top, from outside to inside. Starting from the corner or the positioning block, the blocks shall be hoisted and corrected one by one. -
Technical disclosure of cushion cap construction According to the traverse control point and the design size of the cushion cap, measure and set out the side piles around the cushion cap on the original ground, and use lime marks. At the same time, measure the original ground elevation, and calculate the height difference between the bottom of the cushion cap and the original ground. For the excavation and sloping of cushion cap, according to the soil layer within the construction scope, the excavation slope shall be in accordance with the requirements of the specification (Code for Building Slope (GB 50330-2002)) and the site soil -
Technical disclosure of concrete engineering construction When concrete of different strength grades is poured at the same time, steel mesh (double layer) shall be added at the boundary to prevent mixing of low strength concrete and high strength concrete. -
Technical disclosure of plastering construction Technical disclosure of plastering construction, base treatment: clean up the residual dirt and dust on the base. The hole, trunking and other parts shall be filled with mortar mixed with UEA -
Technical disclosure of electrical engineering construction According to the requirements of engineering design drawings and construction acceptance specifications, combined with the actual situation of the construction site and the actual technical level of the construction team, the construction technical disclosure is carried out. -
Technical disclosure of brick masonry construction 1. Materials: MU15 ordinary bricks, DM M10-GB/T25181-2010, are used for the wall below the indoor floor, balcony brick barrage and ceiling parapet masonry; The wall above the indoor floor shall be constructed with A5.0 aerated concrete blocks, DM M5-GT25181-2010; Block dry unit weight ≤ 7.5kN/m -
Technical disclosure of scaffold construction The 16 # office building of the project is a four storey frame structure. 9~12 # sorting warehouses are of vertical frame bent structure system. Both sides of 13~15 # automatic elevated warehouses are vertical concrete frame bent structure system. Scaffolds shall be designed in the principle of meeting the requirements of civil structure, decoration construction and safety maintenance. The project adopts fastener type steel pipe scaffold for erection, supporting office buildings -
Technical disclosure of reinforcement engineering construction The material certificate, qualification certificate and retest report of raw materials shall be strictly controlled when the reinforcement is mobilized. The retest inspection shall be carried out in batches according to the furnace tank (batch) number and diameter in accordance with the provisions of the national standard Hot rolled ribbed steel bars for reinforced concrete. Special attention shall be paid to the longitudinal reinforcement of the structure to ensure (Grade I seismic resistance) that the ratio between the measured tensile strength and the measured yield strength of the reinforcement shall not be less than 1.2 -
Construction technical disclosure of complete culvert works There are 36 culvert works in the third section of xx railway, which are respectively constructed by the first project department (xx reconstruction (culvert) 110~120), the third operation team of the second project department (xx reconstruction (culvert) 121~125), the fourth operation team of the second project department (xx reconstruction (culvert) 126~142), and the fifth operation team of the second project department (xx reconstruction (culvert) 143~145). -
Technical disclosure of inverted cone water tower construction The reserved door and window openings and embedded parts of the cylinder wall shall be accurately placed one by one in front of the slip form according to the design elevation, size, location and quantity, and temporary reinforcement measures shall be taken; The iron parts shall be firmly welded with the main reinforcement by short reinforcement, and the mortar and concrete on the surface shall be removed in time after the formwork is taken out. The support rod shall be spot welded with the circumferential reinforcement for reinforcement. The spot welding spacing shall not be greater than 5Oomm. φ shall be used every 1.0~1.5mm -
Technical disclosure of subgrade filling construction This data is the technical disclosure of subgrade filling engineering construction, a total of 31 pages, detailed and accurate, for reference. -
Technical disclosure record of subgrade construction The stones shall be divided into the following two types according to the degree of processing: 1) Rubble: the shape is unlimited, but the thickness of the middle part shall not be less than 15cm. The surface of the rubble used for veneer should be flat and large, and the edge thickness should not be less than 15cm. 2) . Block stone: roughly square in shape, without sharp edges and convex corners, flat on top and bottom, thickness not less than 20cm, length and width -
Construction technical disclosure of a road reconstruction project Civilized construction and safe production. (1) The site shall be kept clean. (2) Scaffolds and boards used for construction shall be firm and equipped with relevant safety protection facilities. (3) The safe use of electricity shall be managed by special electricians instead of randomly connecting wires. -
Construction technical disclosure of a lane regulation project After roughening and cleaning the old pavement within the starting and ending points of the road, spray the tack coat oil in a dry state. When spraying the tack coat oil, it should be evenly sprayed according to the design requirements (1kg/m2). After spraying the asphalt, it should be allowed to dry for a certain time until the viscosity is suitable for paving the pavement. -
Construction technical disclosure of masonry works For steel pipes with pipe diameter of 25mm and below, manual pipe bender can be used to bend on site. One end of the pipe can be stepped on and then the pipe bender can be pulled to gradually bend out the required bending degree. Hydraulic pipe benders are generally used for steel pipes with pipe diameters of more than 32mm and less than 80mm. Attention shall be paid to the selection of bending die corresponding to the steel pipe specification. After the die is placed, press the pressure bar or start it -
Technical disclosure of road and pipe network construction Gravel and sand cushion shall be evenly mixed and then paved. During paving, leveling shall be carried out while paving, and plate vibrator shall be used to vibrate and compact the cushion surface. -
Technical disclosure for construction of reinforcement subdivisional works For the full-length longitudinal reinforcement of frame shear beam or slab, the surface reinforcement shall be lapped at 1/3 of the midspan, and the bottom reinforcement shall be at the support; The lap length shall be in accordance with the design drawings, and if there is no design requirement, the lap length shall be in accordance with the specification requirements. When the secondary beam is the same height as the main beam, the main reinforcement of the secondary beam should be placed on the main beam, and the height of the overlapping reinforcement should be deducted from the main reinforcement stirrup to prevent the surface reinforcement protection layer from being too small. When the gap between the top of the door and the bottom of the beam is ≤ 300 -
Technical disclosure of concrete cushion construction Materials and main machines and tools: (1) Cement: No. 325 Portland cement, ordinary Portland cement and slag Portland cement should be used. (2) Sand: medium sand or coarse sand, with silt content not more than 5%. (3) Stone: pebble or crushed stone, with a particle size of 0, 5~3, 2cm, and a silt content of no more than 2%. (4) Concrete mixer, scale, trolley or dumper -
Technical disclosure for construction of concrete subdivisional works (1) Base course treatment: the laitance, loose concrete, mortar, etc. bonded to the concrete base course shall be removed with a chisel, the cement slurry skin shall be brushed off with a wire brush, and then cleaned with a broom. (2) Snap the horizontal control line according to the elevation: measure the cushion elevation downward according to the+50cm horizontal elevation line on the wall, and snap it on the four walls if possible. (3) Concrete mixing -
Construction technical disclosure scheme of a masonry project I Aerated concrete block 1) Technical preparation 1. Before block masonry, review the drawings of construction parts, get familiar with the drawings and master the design requirements and standards. 2. Prepare the masonry construction scheme according to the design requirements and quality standards. 3. Put forward the plan for the use of labor, materials and construction machines and tools according to the requirements of the construction scheme. 4. Inspect the performance, strength and density of the product -
Construction technical disclosure card of subdivisional works This data is the technical disclosure card for the construction of subdivisional works. The contents are complete and can be downloaded -
Technical disclosure of residential formwork construction Formwork joints shall be tight without mortar leakage, and sealing measures shall be taken for joints larger than 5mm -
Technical disclosure of residential masonry construction Check whether the wall tie bar is embedded and its length meets the requirements, and straighten it in place. -
Technical disclosure card for unit project construction Construction technical disclosure card of unit project (drilling) -
Technical disclosure of guide wall formwork construction The guide wall reinforced concrete is constructed in sections, each section is about 30m long, and the sectional construction joint is staggered with the diaphragm wall by more than 0.5m. -
Construction technology and quality disclosure of roof works Building D8 in Zone F of Metro Home is located in Sandao Street, Daokou, off the road area, with a building area of 29690.87m2, one floor underground and thirty-four floors above the ground, and a shear wall structure. -
Construction technical disclosure of formwork subdivisional works The content is rich and detailed. However, it can only be used for reference according to the specific project conditions.
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one Construction technology of highway pavement engineering -
two Construction technical disclosure of subdivisional works -
three Technical disclosure of curtain wall construction -
four Technical disclosure of formwork construction -
five Technical disclosure of unit project construction -
six Technical disclosure of subgrade construction -
seven Technical disclosure of lighting engineering construction -
eight Technical disclosure of ground engineering construction