1、 What to look at in the geological survey report: 1
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First of all, we should see clearly the site evaluation and foundation selection suggestions in the geological data, so as to have a general understanding of the general situation of the site
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2
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According to the geological profile and physical indexes of each soil layer, the geological structure, soil layer distribution, site stability and uniformity of the site are evaluated and understood
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3
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Observe whether the actual situation of the site deviates from the geological report
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4
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Combining the settlement observation value of the main structure with the geological report, the causes of large settlement value are analyzed to ensure the engineering quality
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5
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Whether adverse geological conditions affecting the foundation are found, such as soil cave, karst cave, soft soil, groundwater, etc
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Note that there is often such a sentence in the groundwater geological report that “no groundwater is found during the survey”
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If there is a basement and the site is impermeable soil layer, such as rock, the water pressure must be considered in the design, because once the foundation pit is filled with water and there is no place for the water to go, if it is not considered in the design, the owner and the design unit should be contacted immediately
.
Point me: get the project gift package 2
.
What are the key points of structure and construction drawings? 1
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Structure and architectural design description
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2
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Foundation plan and details: foundation size positioning, warm ditch drawing and foundation hole drawing
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3
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The plan and detailed drawings mainly include formwork drawing, special node detail drawing, layout of precast slab, reinforcement of cast-in-place slab, lintel layout, canopy, balcony, overhanging eaves layout and its section detail, stair layout, slab top elevation, beam layout and its number, hole size and its additional reinforcement, manhole and vent location and detailed drawings on roof
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4
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Stair details
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5
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Beam details, plane reinforcement drawing
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6
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Column detail and structure
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7
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Detailed drawing and structure of wall and concealed column
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8
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Layout of ring beam and structural column and detailed section drawing
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9
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Detail drawing and construction of non structural components
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3、 What are the contents of construction claim? 1
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Adverse natural conditions and man-made obstacles
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2
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Claim for extension or delay of construction period
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3
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Claims for accelerated construction
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4
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Claims for temporary interruption of construction and reduction of work efficiency
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5
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Claims arising from improper termination of the works by the owner
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6
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Claims arising from owner’s risks and special risks
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7
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Claims for arrears of project payment
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4、 The purpose of trench inspection is to find out the soil quality and special soil conditions of the foundation trench, judge the local treatment of the abnormal foundation, whether the original drilling needs to be supplemented, whether the original foundation design needs to be modified, and confirm the data and the external environment of the project
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1
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Whether the foundation soil layer is the soil layer that reaches the data given by the geological department at the time of design, and whether there is any difference, it is mainly the responsibility of the surveyors
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2
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Whether the foundation depth reaches the design depth, whether the bearing stratum is in place or over excavated, whether the foundation pit size is correct, the axis position and deviation, and the foundation size
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3
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Verify the geological report, negotiate and solve in case of inconsistency, and modify the design scheme
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4
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Whether there is water in the foundation pit and whether the base soil layer is disturbed
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5
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Whether there are other factors that affect the quality of foundation construction (such as whether the foundation pit slope is appropriate, whether there is collapse)
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5、 What is the acceptance of reinforcement? 1
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Anchorage of reinforcement
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2
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Number and diameter of reinforcement
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3
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Reinforcement spacing
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4
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Reinforcement cover
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5
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Stirrup hook
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6
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Post cast strip reinforcement
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7
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Tie bars
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8
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The lap length and joint rate of reinforcement
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9
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Reinforcement joint
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10
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Steel bar certificate and test report
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The main contents of the acceptance of the main structure are: 1
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Whether the size and positioning of the beam column plate meet the design requirements, how the forming quality is, whether there is honeycomb and pitted surface, etc
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There are also traces of repair, if so, the reasons for repair should be asked, whether there is any impact on the structure
.
2
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Whether the embedded parts are accurately embedded, whether the dowel bar is reserved, whether the rainwater pipe water tunnel is reserved accurately, whether the toilet and other equipment are reserved according to the requirements, and whether the reinforcement of the back sealed hole plate is reserved, etc
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3
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Whether the mortar of masonry project is full, whether the strength is enough (you can pull it by hand), how to set out the masonry, whether it is straight, whether the wall is flat
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Whether the structural column in the masonry is provided with tenon, whether the masonry under the frame beam is dense, and whether the ring beam is set as required
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Whether the thickness of the mortar leveling layer on the wall is too thick
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4
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Look at the settlement records of each layer during construction and see if there is too much difference in settlement
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What is the increased settlement of each layer and the settlement difference between the observation points
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If the difference is too large, increase the observation density first
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5
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Check the construction records, all kinds of material certificates, strength test reports of specimens, etc
.
7、 Check the quality of the project entity
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2
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Check the completion data provided by all parties involved in the project construction
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3
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Carry out spot check and test on the use function of the project
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Such as: toilet, balcony water splashing test, bathtub, water pan, pool water test, water, electricity test, sewage pipe ball test and insulation resistance, grounding resistance leakage trip test
.
4
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Summarize and discuss the completion acceptance, and listen to the quality supervision of the project by the quality supervision organization
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5
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Form completion acceptance opinions, fill in “construction project completion acceptance record form” and “construction project completion acceptance report”, and the acceptance team members sign and the construction unit seal respectively
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6
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When serious problems are found in the process of acceptance, which can not meet the completion acceptance standard, the acceptance team shall instruct the responsible unit to rectify immediately, declare the acceptance invalid, re determine the time and organize the completion acceptance
.
7
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When quality problems that need to be rectified are found in the process of completion acceptance, the acceptance team can form preliminary acceptance opinions, fill in relevant forms and sign by relevant personnel, but the construction unit does not affix official seal
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The acceptance team instructs the relevant responsible units to rectify, and may entrust the project leader of the construction unit to organize the review
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After the rectification is completed and meets the requirements, the official seal of the construction unit shall be stamped
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8
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When all parties of the completion acceptance group can not reach an agreement on the completion acceptance, they shall propose solutions through consultation, and after the agreement is reached, the completion acceptance of the project shall be reorganized
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If the negotiation fails, it shall be reported to the construction administrative department or quality supervision organization for coordination and adjudication..
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