Section 2 Quality control in the construction preparation stage 1, drawing review and design briefing 1.

Section 2 Quality control in the construction preparation stage

. Drawing review and design briefing

1. Drawing review

■ Participating units: construction, supervision, construction, the construction unit organizes supervision and construction units to conduct drawing reviews to form a list of problems. The construction unit submits the design unit

■ Review time: After receiving the design documents that have passed the review,

■Host unit: Construction The unit

■ Meeting minutes: The construction unit organizes the organization, and all parties sign

[Key Point 1] The purpose of drawing review

The general supervision engineer organizes the supervisors to familiarize themselves with the design documents, and the important work of pre-quality control. Purpose:

First, By familiarizing themselves with the drawings, we understand the design intentions and the quality requirements of key parts of the project;

Second, discovers drawing errors and eliminates the quality hazards in the drawings in the bud.

[Point 2] The supervisor is focused on familiar with

(1) The leading ideas and design concepts of design

(2) The requirements for materials, components and equipment of design specifications, professional design instructions and design documents

(3) The requirements for new materials, new processes, new technologies, and new equipment

(4) Requirements for construction technology and matters that should be paid special attention to in engineering quality and construction safety

(2) The content of the review of drawings:

◆ Whether the project project function, technical reliability, safe and economical and applicable needs

◆ Whether the organization has signed and stamped

◆Is the geological exploration data, drawings and instructions complete, and whether the depth meets the specification requirements

◆Is the design earthquake intensity meet the local requirements

◆Is the geometric dimensions, plane positions, elevations, etc. of the total plane and the construction drawing consistent

◆Is the special designs such as human defense, fire protection, and technical defense meet the requirements

◆Is there any errors and contradictions in the drawings, whether the structural drawings and the building drawings are consistent with the plane dimensions and elevations, whether the representation method is clear, whether the drawing standards are met, whether the reserved and embedded parts are clearly expressed

◆Is the source of materials guaranteed, whether there are any problems with the application of new processes, new materials and new technologies

◆Is the method of foundation processing reasonable, whether there are technical problems that cannot be constructed and inconvenient to construction, or it may easily lead to increased quality, safety, and costs

◆Is the process of foundation processing reasonable, whether there are technical problems that cannot be constructed and are inconvenient to construction, or it may easily lead to increased quality, safety, and costs

◆Process pipelines, electrical lines, equipment devices, and transportation roads Is there any conflict with the building

2. Design briefing

■Briefing time: Before construction

■organize and host the unit: construction unit (within 3 months of receiving the construction drawing design)

■Other participants: Representatives of special machinery, non-standard equipment and electrical instrument manufacturers can also be invited to attend the

[Key Points] The procedures and contents of the design briefing meeting are as follows:

(1) The design project leader introduces the project overview.

(2) The design leaders of each professional provide professional design briefings.

(3) The design party and the construction party will concentrate the meeting opinions and form meeting minutes. After discussion and confirmation by the heads of various units present, they will be read at the meeting. After the meeting, the construction unit shall send the meeting minutes to the relevant units.

Project	Drawing review		Design briefing
Time			http://www. ml0 After receiving the qualified construction drawing design documents, the	construction drawings are completed and passed the review before the construction, and
personnel	Construction unit organizes supervision and construction unit to review the drawings	Design unit provides a comprehensive briefing on the drawings to the construction, construction and supervision units
organization	Construction unit organizes supervision assistance
Conference minutes organized and organized	Construction unit attends the meeting to sign, that is, it becomes the basis for construction and supervision	Design party jointly built The party will concentrate the meeting opinions and form meeting minutes

. Review of construction organization design

(I) Basic content and procedure requirements for construction organization design review

1. Basic content of the review (5 items, multiple selection test points)

(1) The editing procedure should comply with relevant regulations

(2) Whether the basic content is complete, it should include the preparation basis, project overview, construction deployment , construction progress plan , construction plan and construction management plan, etc.;

(3) Project progress, quality, safety, environmental protection, cost, etc. should comply with the requirements of construction contract ;

(4) The resource supply plan for funds, labor, materials, equipment and other resources should meet the construction needs of the project, and the construction methods and technical measures should be feasible and reliable;

(5) The overall construction plan should be scientific and reasonable.

[Supplement] Basic content of construction organization design

2. Review procedures required

Construction organization design (special) Construction plan review form

(II) Key points of construction organization design review and supervision work

1. The construction unit editing and review procedures are complete (signature of the compiler, technical person in charge, unit seal), fill out the review form, and submit it to the supervision agency for the specified time.

2. The construction organization design is operational, and quality measures can effectively ensure the quality of the project. The "four new" adopted should be advanced, applicable and reliable.

3. Report the review and replies to the construction unit. For projects involving increased engineering measures fees, they must be negotiated with the construction unit and obtained the approval of the construction unit.

4. If the construction unit makes substantial adjustments, supplements or changes, it should report to the supervision agency for review and approval. If there is any change without authorization, the supervisor shall issue a supervision notice and require it to be submitted for review according to the procedures.

. Construction plan review

General supervision engineer organizes professional supervision engineer review.

■Basic requirements for review:

1. The editing procedures should comply with relevant regulations

2. The project quality assurance measures should comply with relevant standards

[Expand] Classification and content of construction organization design and its content

[Comparison] Basic content of construction organization design and construction plan review

1. Procedural review

·Key review authority of compiler and approver

·Project technical leader organizes the compilation, and the technical leader of the construction unit will submit it to the supervision agency

·The supervision agency checks whether the internal approval procedures and signatures of the construction unit will be complete, and the focus is on checking whether the approver is the technical leader of the construction unit.

2. Content review

review whether the basic content of the construction plan is complete, including:

(1) Project overview: project overview, construction plan layout, construction requirements and technical guarantee conditions;

(2) Preparation basis: laws and regulations, standards, specifications, construction organization design, etc.;

(3) Construction arrangement: including the determination of construction sequence and construction flow sections, construction progress plan, material and equipment plan;

(4) Construction technology: technical parameters, process flow, construction methods, inspection standards, etc.;

(5) Construction guarantee measures: organizational guarantee, technical measures, emergency plans, monitoring and monitoring, etc.;

(6) Calculation book and related drawings.

Focus on reviewing

·Whether it is targeted, guided, and operable

·Whether the on-site construction management agency has established a complete quality assurance system, whether the quality requirements and standards are clarified, whether the quality assurance system organization and job responsibilities are improved, whether the quality management personnel are equipped,

·Whether the quality management system and management procedures have been established

·Whether the quality assurance measures comply with the specifications and standards, especially the mandatory standards

3. The review is mainly based on

·Construction contract, supervision contract file

·Approved construction project documents and survey and design documents

·Related laws, regulations, specifications, regulations, standards, and drawings

·Other basic engineering data, environmental data around the project site

. Quality control of on-site construction preparation

(I) Construction site quality management inspection

Project supervision agency reviews the content of the construction unit site:

■Quality management organization

■Management system

■Qualification of management personnel and special operations personnel

(II) Review and confirmation of subcontracting unit qualifications

1. Professional supervision engineer

· Review the integrity, authenticity and validity of the materials

· If necessary, work with the construction unit to conduct on-site inspections and investigations of the subcontractor

(1) should check " Construction Industry Enterprise Qualification Certificate ", "Enterprise Legal Person Business License", " Safety Production License " [2 certificates and 1 license]

[Note] The intended subcontracting content is consistent with the qualification level and business license.

(2) Similar performance: Requirements for providing certification documents such as project name, project quality acceptance and other documents.

(3) Review the content and scope of subcontracting

[Note] The nature of contracting of the construction unit, and illegal activities such as subcontracting, dismembering subcontracting, and layer-by-layer subcontracting are prohibited.

2. The chief supervision engineer

· Review the application materials

·Sound the opinions of the construction unit before signing the written opinion

·If the requirements do not meet the requirements, the construction unit shall submit the review opinions of the chief supervision engineer, or re-report or select another subcontracting unit to submit the review again.

(III) Check the construction control measurement results

Professional supervision engineer

(1) Check and review the construction control measurement results and protection measures submitted by the construction unit, and sign the opinions.

(2) The construction measurement and line laying results reported during the construction process are checked.

(IV) Inspection of the construction laboratory [Owned and entrusted]

·Construction laboratory: It has a qualification certificate issued by the government competent department and the corresponding test scope. The qualification level and test scope must meet the project needs;

·Equipment: The statutory measurement department issued measurement verification certificate for the test equipment

·Management system: With a data management system, instrument and equipment management system...

·Personnel: Testing and testing personnel have qualification certificates

Construction units should regularly inspect and verify the measurement equipment to ensure accuracy and reliability;

Professional supervision engineers review the inspection and verification reports of metrology equipment that affect the quality of the project submitted regularly.

(V) engineering materials , components and equipment quality control

1. Basic content

2. quality control key points

(1) Main materials, purchased and ordered according to the requirements of the design document, and meet relevant standards and design requirements.

◆Professional supervision engineer

·When entering the site, check the manufacturer's production license, factory certificate, material test form and performance test report. Any unqualified products are not allowed to be used in the project.

· Participate in the inspection organized by the construction unit (the construction unit is responsible for purchasing raw materials, semi-finished products, and components), and put forward inspection opinions.

(2) Materials are allocated on site. The construction unit should conduct grading design and mix ratio tests and use them after passing the qualification.

(3) Imported materials, components and equipment

·Construction units require the construction unit to submit import commodity inspection certificates.

·With the construction unit, construction unit, supply unit and other personnel conducting joint inspection and acceptance [the construction unit proposes, the supervision agency organizes, and the construction unit presides over]

Professional supervision engineer

(4) New materials and new equipment, and the appraisal certificate or engineering application certification materials, field inspection reports or special argumentation materials of relevant departments should also be checked.

(5) When materials, (semi) finished products, and components enter the site, professional supervision engineers check the appearance quality of dimensions, specifications, models, product logos, packaging, etc. to determine whether they comply with the design, specifications, contracts and other requirements.

(6) Before the equipment acceptance, the equipment installation unit submits the equipment acceptance plan: acceptance method, quality standards, and basis for acceptance, and implement it after review and approval by professional supervision engineers.

(7) The equipment entering the site will be inspected by professional supervision engineers in conjunction with the installation and supply units. Check whether it complies with the manufacturer, model, specification, quantity, technical parameters, etc. stipulated in the design documents, contract documents and specifications. Check whether the equipment drawings, instructions and accessories are complete.

(8) The main equipment purchased by the construction unit shall be unboxed and inspected by the construction, construction and supervision agencies, and the three parties shall sign the unboxing record. If

(9) is used again after entering the site and is a period of time, professional supervision engineers will monitor the storage, storage and use period. For materials, components and equipment that have been entered and failed to pass the inspection, the construction unit should be required to withdraw them from the construction site within a time limit.

Construction unit submits the project start-up report form and related information, and specializes in supervision and review.

After the chief supervision engineer signs the review opinion and submits it to the construction unit for approval, the chief supervision engineer issues the start-up order. The following conditions are met:

■ Design briefing and drawing review have been completed

■ Construction organization design has been signed by the chief supervision engineer

■ Construction unit’s on-site quality and safety production management system has been established, management and construction personnel have been in place, construction machinery has met the conditions for use, the main engineering materials have been implemented

■ Entering the road, water, electricity, communication, etc. have met the construction requirements

0 The general supervision engineer should issue a project start-up order to the construction unit 7 days before the start date. The construction period shall be calculated from the start date stated in the project start order.