Other parties shall express their views and opinions on the expert review opinions.
Other (I) curtain wall installation works with construction height of 50m and above.
（5） Adopt new technology, new process, new materials, new equipment and divisional and subdivisional works with high risk without relevant technical standards.
The expert demonstration meeting shall be organized by the general contractor according to the regulations.
Put forward clear opinions on the contents of the demonstration and sign on the demonstration report.
The construction unit undertaking the divisional and subdivisional works will introduce the project overview.
Formwork engineering and support system (I) instrumental formwork engineering: including slip form, climbing formwork and flying formwork engineering.
Scaffold Engineering (I) floor type steel pipe scaffold engineering with a height of 50m and above.
（2） Attached integral and sectional lifting scaffold works with lifting height of 150m and above.
6.
5.
（2） Steel structure installation works with a span of more than 36m; Installation works of grid and cable membrane structures with a span of more than 60m.
The report serves as the guidance for the modification and improvement of the special plan.
8.
（3） Manual hole digging pile works with excavation depth of more than 16m.
It mainly introduces the scale and characteristics of the project, the surrounding environment and construction conditions of the construction site.
Attachment: meeting procedures of expert demonstration meeting the following procedures are general procedures, which will be slightly different due to regions.
The main contents of expert demonstration: (1) whether the contents of the special plan are complete and feasible; （2） Whether the calculation sheet and check basis of the special scheme comply with relevant standards and specifications; （3） Whether the basic conditions of safe construction meet the actual situation on site.
4.
2.
If the expert group cannot arrive at the scene, it can provide on-site image data.
（4） Demolition of cultural relics protection buildings, excellent historical buildings or areas with historical and cultural features.
The participants generally include: (1) members of the expert group (the personnel of all parties involved in the construction of the project shall not participate in the expert demonstration meeting as experts), and not less than 5 or more experts who meet the requirements of relevant majors; （2） Project leader or technical leader of the construction unit; （3） Chief project supervision engineer and relevant personnel of the supervision unit; （4） The person in charge of safety, technical director, project director, project technical director, special scheme preparers and full-time safety production management personnel of the project of the construction unit; （5） The project technical director and relevant personnel of the survey and design unit.
（3） Cantilever scaffold works with a height of 20m or more.
After the resumption of the meeting, the leader of the expert group will read out the final comments of the review, and the expert group will submit the demonstration report.
The best way is for the participants to check the site conditions at the construction site before the meeting, so that the expert group participating in the demonstration can fully understand the site conditions.
If the professional design unit provides the design scheme, the design unit shall elaborate on the design scheme.
Foundation Pit Engineering (I) earthwork excavation, support and dewatering of foundation pit (groove) with excavation depth of more than 5m (including 5m).
7.
Finally, the presider of the meeting shall clarify the matters to be decided at the meeting, including matters such as modifying the scheme or modifying the design…
（2） Hoisting equipment installation works with lifting capacity of 300KN and above; Demolition of internal climbing lifting equipment with a height of 200m and above.
（2） Demolition works of wharves, bridges, viaducts, chimneys, water towers or special buildings and structures that are easy to cause toxic and harmful gas (liquid) or dust diffusion, flammable and explosive accidents during demolition.
Source: the supervision text is as follows: engineering projects requiring expert argumentation 1.
Introduce the project overview.
The meeting is generally presided over by the project leader of the construction unit or the chief supervision engineer of the supervision unit.
The following are the regular meeting procedures of the expert demonstration meeting: 1 Introduce the participants.
4.
The construction unit expounds the main contents of the special safety plan, including the preparation basis, project overview, construction deployment, project organization, technical measures and calculations, emergency plans, etc.
If the construction is organized by the general contractor, the general contractor will introduce the project overview.
（2） Concrete formwork support works: the erection height is 8m and above; The erection span is 18m and above, and the total construction load is 15kn/ ㎡ and above; Concentrated line load 20kn/ ㎡ and above.
Hoisting, installation and disassembly works (I) hoisting works with unconventional hoisting equipment and methods and a single hoisting weight of 100kN or more.
The introduction should be as detailed as possible, which can be supplemented by the construction unit or the supervision unit.
6.
（3） Load bearing support system: it is used for steel structure installation and other full support systems, bearing a single point concentrated load of more than 700kg.
After the opinions of the expert group are put forward, the meeting will be adjourned for about half an hour so that all experts can unify and clarify the review opinions.
3.
3.
2.
（2） Although the excavation depth does not exceed 5m, the geological conditions, surrounding environment and underground pipelines are complex, or the earthwork excavation, support and dewatering works of the foundation pit (groove) that affects the safety of adjacent buildings (structures).
（4） Underground excavation works, pipe jacking works, underwater operation works.
If you have any questions, you can ask the expert group.
5.
The participating experts conduct a preliminary review of the design scheme and the special safety scheme, and ask about the relevant situation of the project, and each expert puts forward their own opinions.
Demolition and blasting works (I) works using blasting demolition.
（3） Demolition works that may affect the safety of pedestrians, traffic, power facilities, communication facilities or other buildings and structures.
