Full Demolition Requirements and Management Norms for Brick Chimneys
Section 1: Construction Requirements for Complete Demolition of Brick Chimneys:
(1) Brick chimneys are tall structures, and the demolition construction for brick chimneys should refer to the relevant requirements for the demolition of building structures. Under the condition that on-site conditions permit, it is advisable to prioritize manual mechanical demolition or blasting demolition methods for the demolition construction, as these methods are fast, cost-effective, and relatively safe.
Chimneys come in several types, including brick chimneys, reinforced concrete chimneys, and a few steel pipe chimneys. This section primarily covers the dismantling procedures for brick and reinforced concrete chimneys. Prior to the specific operations, a detailed construction organization plan and special construction scheme should be prepared, and thorough written technical handover should be conducted.
(2) Entire Brick Chimney Demolition Method
When the overall demolition of a brick chimney at the construction site is limited by space, and surrounded by buildings that hinder the use of mechanical or爆破 demolition methods, manual chimney demolition can be employed for the removal construction.
(3) The manual dismantling method typically involves setting up a closed scaffold around the perimeter. The working level should be fully covered with scaffold boards and equipped with toe boards and guardrails. The perimeter should be completely covered with a dense, flame-retardant safety net. Operators stand on the scaffold and use hammers, pry bars, or jackhammers to dismantle. The dismantled materials fall into the chimney. A sloping board is set up at the bottom of the chimney facing the door. The falling materials automatically slide out, allowing for timely removal.
(4) When conducting artificial dismantling work during the summer thunderstorm season, lightning protection devices should be installed on the scaffolding.
Section 2: Safety Technical Specifications for the Overall Demolition Construction of Brick Chimneys
(1) Temporary Electrical Safety File for the on-site dismantling of brick chimneys, which should include the following:
1. Utilize all the materials from the organizational design.
2. Modify the materials for the electrical organization design.
3. Electrical Technology Handover Documents
4 Electrical Engineering Inspection and Acceptance Form
5. Test, inspection certificates, and commissioning records for electrical equipment.
6 Ground Resistance, Insulation Resistance, and Leakage Protective Relay Trip Parameters Measurement Record Sheet
7 Regular Inspection (Re-inspection) Schedule
8. Electrical installation, patrol, maintenance, and dismantling work records.
(2) The technical safety file for the brick chimney demolition construction site should be established and managed by the electrical engineer in charge of the site. The "records of electrical installation, inspection, maintenance, and demolition work" can be entrusted to an electrician to manage, which should be reviewed and approved by the project manager weekly, and should be archived uniformly after the temporary electrical engineering demolition.
(3) Temporary electrical projects for brick chimney demolition should be regularly inspected; during these inspections, the resistance values of the grounding and insulation should be rechecked.
(4) Regular inspections of temporary electrical projects for brick chimney demolition should be conducted by section and item, and potential safety hazards must be addressed promptly. Additionally, the review and acceptance procedures should be followed.
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(A) High-altitude Construction Projects: New Chimneys, New Brick Chimneys, New Concrete Chimneys, Chimney Slab Forming, Concrete Chimney Molding, Reinforced Concrete Chimneys, Cement Chimney Shifting, New Steel Chimneys, Glass Fiber Reinforced Plastic Chimneys, New Stainless Steel Chimneys, New Cooling Towers, Cooling Tower Slab Forming, New Water Towers, New Insulated Conical Water Towers, New Mushroom-shaped Water Towers, New Umbrella-shaped Water Towers, Slab Forming for Silos, New Concrete Storage Tanks.
(3) High-altitude Anticorrosion Projects: Chimney Anticorrosion, Chimney Aesthetics, Painting Aviation Signs, Chimney Painting with Characters, Chimney Painting with Color Rings, Cooling Tower Anticorrosion, Water Tower Anticorrosion, Urea Granulation Tower Anticorrosion, Decontamination Tower Anticorrosion, Furnace Frame Anticorrosion, Pipe Anticorrosion, Iron Tower Anticorrosion, Steel Structure Anticorrosion, Iron Chimney Paint Anticorrosion, Chimney (Rings, Platforms, Ladders, Guardrails) Anticorrosion, Steel Truss Anticorrosion, Oil Storage Tank Anticorrosion, Building Exterior Paint, Coal Shed Coal Conveyor Bridge Anticorrosion.
(A) High-altitude Maintenance Projects: Chimney repair, chimney bracing and reinforcement, chimney crack repair, chimney crack banding, brick and concrete chimney reinforcement and repair, brick chimney maintenance, boiler house chimney inspection and maintenance, brick chimney plastering, chimney heightening, brick chimney demolition and heightening, brick chimney cement plastering, chimney overall tilt correction, chimney lining replacement, chimney interior wall dust removal, chimney top repair, chimney lightning protection system maintenance, chimney reinforcement and repair (including bands, platforms, ladders, and guardrails), chimney heightening for insufficient draft;
(A) High-altitude Installation Projects: Chimney installation of smoke detection platforms, lightning rod installation on chimneys, installation of beacon lights on chimneys, obstruction light installation, steel chimney installation, stainless steel chimney installation, chimney climbing ladders, safety platforms, safety guardrails, installation of ladders at the top of the chimney, chimney platforms, zigzag steel ladder, Z-shaped climbing ladder, spiral staircase, rotating steel staircase design and installation.
