First, the role and classification of technical disclosure

1. What is the construction technology disclosure

Technical disclosure is a very important technical management work for construction enterprises, the continuation and improvement of construction scheme, and the last pass of project quality pre-control. Its purpose is to make the technical personnel and workers involved in the construction project familiar with and understand the characteristics, design intention, technical requirements, construction technology and problems that should be paid attention to.

2. The role of technical disclosure

Make every technical personnel involved in the construction activities clear the specific construction conditions, construction organization, specific technical requirements and targeted key technical measures of the project, and systematically grasp the whole picture of the construction process and the key position of the construction. Every worker to participate in project construction operation, through technical clarificaiton, know yourself to be completed by the partial project specific work content, operating methods, construction technology, quality standards and safety precautions, such as do construction operation personnel task clear, to achieve an orderly construction, some to reduce all kinds of common quality faults, to improve the quality of construction.

3. Classification of construction technology disclosure

Construction organization and design disclosure: key and large-scale engineering construction organization and design disclosure shall be made by the technical person in charge of the construction enterprise to the main project management personnel on the main design requirements, construction measures and important matters. Other project construction organization design disclosure by the project technical person in charge of disclosure. Technical disclosure of special construction scheme: the professional technical person in charge of the project shall make disclosure to the professional foreman according to the special construction scheme.

Technical disclosure of itemized construction: the disclosure shall be made by professional foreman to professional construction teams (or professional subcontractors). "Four new" technical disclosure: the technical leader of the project shall organize relevant professional personnel to compile and disclose the information.

Technical disclosure of design change: technical disclosure of design change: the technical department of the project shall make disclosure to the professional foreman according to the requirements of the change and in combination with the specific construction steps, measures and matters needing attention.

Special disclosure of surveying engineering: the disclosure of surveying personnel shall be made by engineering and technical personnel.

Safety technical disclosure: the technical personnel in charge of project management shall make disclosure of the technical requirements related to safe construction to the construction work team and operation personnel. More attention please WeChat public number: construction management technology

Ii. Compilation requirements of construction technical disclosure

It must comply with the construction specifications, technical operation rules, quality acceptance specifications, project quality evaluation standards and other relevant provisions.

National technical standards, including units of measurement and names, must be implemented.

Meet and implement the technical requirements in the design construction drawing.

The intention and specific requirements in the technical disclosure of the technical leader at the next higher level shall be met and implemented in accordance with the requirements of the construction organization design or construction plan, including the requirements of technical measures and construction schedule.

For different levels of construction personnel, their technical disclosure depth and degree of detail are different, that is to say, the content depth and description of different personnel should be targeted.

Technical disclosure should strive to achieve: complete main projects, specific and clear content, in line with the norms, prominent emphasis, accurate description, value of data, supplemented by diagrams if necessary. Can play a guiding role in engineering construction, with pertinence, guidance and maneuverability. There should be no similar contents in the technical disclosure, such as "matters not covered herein shall be executed with reference to (specification) ×××". The construction technical disclosure shall be organized by the technical person in charge of the project, and shall be specifically prepared by the professional foreman and/or the professional technical person in charge. After the examination and approval of the technical person in charge of the project, the professional foreman and/or the professional technical person in charge shall make the disclosure to the construction team leader and all construction workers.

The disclosure of construction technology shall be made before the construction of the project.

Iii. Compilation contents of technical disclosure

(1) preparation format of technical disclosure

1. Project overview

2. Work content and workload

3. Quality, safety, progress, civilized construction, environmental protection and other objectives

4. Construction preparation

4.1 material preparation

4.2 machine preparation

4.3 operating conditions and personnel preparation

5. Operation process

5.1 process flow

5.2 job preparation

5.3 construction technology

6. Quality standards

6.1 main control project

6.2 general items

6.3 quality control points

7. Protection of finished products

8. Safety and environment

9. Construction precautions.

(2) contents of construction technology disclosure

1. The technical disclosure made by the chief engineer of the construction unit to the project manager and the technical person in charge of the project shall include the following main aspects:

1) project overview and various technical and economic indicators and requirements;

2) main construction methods, key construction technologies and problems existing in the implementation;

3) technical treatment details of special engineering parts and matters needing attention;

4) new technology, new process, new material, new structure construction technical requirements and implementation plan and matters needing attention;

5) construction organization design network plan, schedule requirements, construction deployment, construction machinery, labor arrangement and organization;

6) cooperation and cooperation between the general contractor and subcontractors and the handling of related issues.

7) construction quality standards and safety technologies; Try to adopt the work method and other standardized operations carried out by the unit.

2. The technical disclosure of the project technical leader to the project leader, quality inspector and safety officer of the unit includes the following aspects:

1) project status, local topography, geomorphology, engineering geology and various technical and economic indicators;

2) design due to the specific requirements, practices and construction difficulties of paper;

3) specific requirements of construction organization design or construction scheme, as well as implementation steps and methods;

4) specific methods in the construction, which process standard to use and which construction method of the enterprise; Key parts and possible problems and solutions in the implementation process;

5) construction schedule requirements, process lapping, construction deployment and construction team task determination;

6) the type, quantity, approach time and operation procedure arrangement of the main construction machinery used in the construction;

7) relevant operating procedures, technical provisions and matters needing attention for new processes, new structures and new materials;

8) construction quality standards and specific measures of safety technology and matters needing attention.

3. Technical disclosure from the professional foreman to the team leader and workers of each type of work:

1) pay special attention to the specific technical requirements and construction technology standards or internal working methods adopted by each working group for each sub-project; More attention please WeChat public account: the home of the construction project

2) construction quality standards of sub-projects;

3) prevention measures and precautions for common quality diseases;

4) construction safety disclosure and the introduction of previous similar engineering safety accident lessons and specific safety countermeasures to be taken.

Iii. Key points of technical disclosure compilation

1. Earthwork: properties and characteristics of foundation soil; The position and protection methods of various stake markers; The scope and depth of digging and filling soil, the requirements of releasing slope, the ramming method of backfilling soil and lime soil and the index requirements of bulk density; Groundwater or surface water removal and treatment methods; The construction technology and operation rules should be stipulated and safety technical measures should be taken.

2. Masonry works: masonry parts; Axis position; Horizontal elevation of each floor; Openings of doors and Windows; Variation of wall body thickness and wall thickness; Strength grade of mortar, proportion of mortar, number of mortar test blocks and curing; Location, quantity, specification and size of each reserved hole and each professional embedded part; Quality requirements of raw materials such as bricks and stones of different parts and elevation; Methods and quality standards of masonry group; Preventive measures for common quality problems, safety precautions, etc.

3. Formwork: axis and horizontal position, elevation, section form and geometric dimension of various reinforced concrete members; Formwork plan and technical requirements; Specific technical requirements for strength and stability of support system; Mold removal time; The position, elevation, size and quantity of embedded parts, reserved holes and methods to prevent their displacement; Technical requirements and treatment methods for special parts; Quality standard and preventive measures for common quality problems and safety technical measures.

4. Reinforcement engineering: types, types, diameters, roots, joint methods and technical requirements of reinforcement in all components; Technical measures to prevent steel bar displacement and protective layer thickness; Methods and procedures of rebar replacement; Technical treatment of special capital bit; Relevant operations, especially those intended for working at height; Quality standard and preventive measures, safety technical measures and precautions.

5. Concrete engineering: concrete types and strength grades with different locations and elevations; Control of mixing ratio, water-cement ratio and collapse degree and corresponding technical measures; Technical provisions and requirements relating to agitation, transportation and vibration; Concrete casting method and sequence, concrete curing method; The reserved parts, quantity of construction joints and the specific requirements of corresponding technical measures and specifications; Technical measures for temperature control in construction of large volume condensed soil; The concrete technical details of anti-seepage concrete construction and the implementation measures; Retention position, quantity and curing of concrete test blocks. Specific technical measures should be put in various pre-processing parts and reserved hole displacement, especially the displacement of the anchor bolt of mechanical equipment. Specific requirements should be put forward during construction. Measures for quality standard and prevention of common quality problems (due to the quality problems of concrete engineering are generally more serious, more attention should be paid to the technical disclosure), technical measures for concrete construction safety and saving measures.

6. Hand rack engineering: types, models, quantities, specifications and quality standards of materials used; Technical requirements for construction mode, strength and stability of the shelves (they must meet the requirements of firmness and reliability); Technical measures and requirements for lifting shelves layer by layer; Vertical degree and settlement deformation requirements of the shelf pole; Rack works set up workers self - inspection and floor - by - floor security inspection door special inspection. The important parts of the frame, as follows: the technical requirements and inspection method of the assembly and installation of the steel frame with braced beam; Connection mode and requirement of the frame and building; The method and sequence of shelf removal and its intended items; Quality marking and safety precautions of shelf engineering.

7. Structural lifting engineering: model, weight, quantity and location of lifting points of various parts of the building; Technical performance of hoisting equipment; The cable specifications, operation route, hoisting sequence and method of the hoisting equipment; Hoisting contact signals, labor organization, command and cooperation; Connection mode of lifting node; Connection sequence and connection method of lifting component support system; Technical measures for overall stability of lifting members (such as prestressed reinforced concrete roof truss) during lifting; Contact the municipal power supply bureau for power supply; Notes for hoisting operation; Error standard of hoisting components and prevention of common quality defects; Safety technical measures for hoisting components.

8. Steel structure engineering: model, weight, quantity, geometric size, plane position and elevation of steel structure, varieties, types and specifications of various steels, connection methods and technical measures; Welding equipment specification and operation notes, welding process and technical standard, technical measures, weld type, location and quality standards; Process flow sequence from component cutting to assembly; Steel structure quality standards and quality problems prevention surface application, construction safety technology surface application.

9. Floor ground engineering: floor ground types, engineering practices and technical requirements, construction sequence and quality standards of various parts; Construction techniques that meet the specific requirements of new building floors or special industries (such as broadcasting and television); Floor quality standards and technical measures taken to ensure engineering quality standards.

10, roof and waterproof engineering: roof and waterproof engineering structure, type, type, waterproof material model, type, technical performance, characteristics, quality standards and matters needing attention. Type and mix ratio of insulation layer and waterproof material, apparent density, thickness, operation process. Basic practice and basic technical requirements, paving or coating method and operation play; Various node processing methods; Non-treatment and requirement of water stop technology in seepage prevention and coagulation engineering; Protection and anti-virus and safety precautions during operation.

11, decoration works: the types, grades, practices and requirements of the parts of the decoration, quality standards, finished product protection technical measures; New decoration materials and special process decoration requirements of the construction process and operation steps, with the relevant process contact cross operation cooperate with each other; Safety measures, especially safety measures for working at height.

Iv. Implementation method of technical disclosure

Disclosure at the meeting: the chief engineer of the construction unit shall make disclosure at the technical meeting to the project manager and the technical person in charge. The chief engineer of the construction company presided over the meeting, and the technical department, safety inspection department and other relevant departments, project managers, project technical leaders and other professional engineers participated in the meeting. The construction organization design or construction scheme of the project is introduced specially, and the specific methods and requirements for implementation are put forward. Then the key details in the construction scheme are explained in detail by the technical section, and the requirements are put forward (including the construction progress). The quality and safety inspection section makes detailed disclosure of the construction quality and technical safety measures.

Written disclosure: the technical leader of the project shall make technical disclosure to the team leaders and workers in the form of written disclosure, which is not only necessary for the construction technical data, but also an important sign to distinguish technical responsibility after the completion of construction. Especially when there are major quality accidents and safety accidents, it is a main sign of the technical responders.

Construction sample disclosure: for the first use of new technology, new structure, new technology and new materials, for the sake of prudence, some sub-projects in the construction project often adopt the method of sample disclosure. Alleged model hand over, it is the technical requirement according to design drawing, below the premise that satisfies construction and acceptance code, go up in a nature of building project, column, beam, wall, piece of example. By this enterprise technology this level higher old worker first makes achieves the excellent quality standard the example, serves as the other workers to study the object model, causes other workers to master the operation essentials, the familiar construction craft operation step, the quality standard.

Job technical disclosure: the construction operation of a sub-project is composed of different job procedures and posts. Engineering such as concrete, is not only concrete pouring concrete, ahead of shuttering, concrete mixing, the ingredients and the concrete level and vertical transport at a predetermined area only after the placing of concrete, the sectional works by a lot of work to carry on the reasonable matching, only guarantee the quality of these different post operation, to ensure the quality of concrete engineering. Some construction enterprises formulate the workers' responsibility system for operating positions, and formulate the operating process card. According to the specific conditions of the construction site, they shall disclose their positions to workers in written form at any time and put forward specific operational requirements, including requirements for safe operation.

V. technical disclosure management procedures and matters needing attention

(1) the technical disclosure shall be conducted on the basis of the comprehensive joint examination of the drawings of the unit project, and before the construction of the unit project or the sub-projects or sub-projects. Technical disclosure shall leave appropriate preparation time for construction and shall not be made up later.

(2) technical disclosure shall be in written form supplemented by oral explanation. The disclosing party and the receiving party shall timely complete the handover and signature procedures, and shall timely hand over to the information clerk for archiving and proper preservation.

(3) technical disclosure shall be carried out step by step according to engineering tasks and construction needs.

(4) when accepting the technical disclosure, the disclosing party shall make clear and understand the disclosure content. Disclosure at all levels shall be carried out before the work, during the work inspection, and after the work acceptance, and the disclosure shall be carried out in the actual place.

(5) the technical disclosure shall be neatly written, the disclosing party and the receiving party shall sign, and the date of disclosure, project name and other contents shall be clearly written. The technical disclosure shall be made in triplicate, and the disclosing party shall keep one copy on file.

(6) technical disclosure should be scientific

By scientific nature, I mean that the basis is correct, the understanding is correct, and the disclosure is correct. Construction specifications, provisions, drawings, drawings and standards are the basis for compiling technical disclosure, the key is how to correctly understand, combined with the actual project, flexible