How to Remove Prefabricated Floor Slabs in House Demolition

The removal of prefabricated floor slabs in house demolition requires formulating a detailed plan based on the house structure, surrounding environment, and safety requirements, while strictly adhering to laws and regulations. The specific steps are as follows:

I. Pre-demolition Preparation

1. Safety Assessment: Commission a professional agency to conduct a structural safety assessment of the house to confirm whether the prefabricated floor slabs have severe aging, cracks, or insufficient seismic performance. If identified as a dangerous building, organize demolition and reconstruction in accordance with regulations.
2. Planning and Announcement: The government issues a demolition announcement, specifying the scope, duration, and compensation plan to safeguard residents' right to be informed.
3. House Survey and Registration: Record detailed information about the house, including ownership, area, and purpose, to provide a basis for subsequent compensation.
4. Formulate a Demolition Plan: Plan the demolition sequence, tool selection (such as electric hammers and cutting machines), and personnel division based on the location, size of the prefabricated slabs, and the surrounding environment to ensure orderly operations.

II. Formulate a Demolition Plan

1. Categorized Handling: Prioritize reinforcing repairable prefabricated slabs; for those that cannot be repaired and pose safety hazards, formulate a demolition plan.
2. Method Selection: Choose mechanical demolition (efficient and suitable for open areas) or manual demolition (precise and suitable for complex environments) based on the structural type to minimize the impact on surrounding buildings.
3. Cut Connections: Before demolition, cut off the steel bars and bolt connections between the prefabricated slabs and beams, walls, and other structures to avoid affecting the overall structure during demolition.
4. Use Professional Tools: Use electric hammers, cutting machines, and other tools to segment and cut the prefabricated slabs, controlling the scope of breakage and reducing damage to the retained structure.
5. Gradual Demolition: Demolish in blocks according to the plan, controlling the force and speed to prevent impact from causing the house to collapse.
6. Safety Guarantee: Set up warning lines and protective nets, and equip with emergency rescue equipment to ensure the demolition process is safe and controllable.

III. Precautions During the Demolition Process

1. Personnel Protection: Workers must wear protective equipment such as safety helmets, dust masks, and gloves to avoid injuries from falling objects or dust.
2. Dust Control: Reduce dust diffusion through water spraying for dust suppression and covering with dust nets to protect the environment and human health.

IV. Follow-up Work

1. Waste Disposal: Promptly clean up the fragments of the prefabricated slabs, classify and recycle reusable materials, and dispose of the remaining waste in accordance with environmental protection requirements.
2. Structural Inspection: After demolition, inspect whether the load-bearing structures of the house (such as beams and columns) are damaged to ensure there are no safety hazards.
3. Repair and Treatment: Fill, reinforce, or rebuild the demolished areas to restore the house's functionality.

V. Compensation, Resettlement, and Implementation

1. Compensation Methods: Provide options such as monetary compensation and property rights exchange to ensure transparent and fair standards.
2. Relocation and Demolition: After residents complete their relocation, the demolition party implements the demolition according to the plan and accepts supervision throughout the process.
3. Transitional Resettlement: Provide temporary housing or rental subsidies for residents without housing to ensure their basic living needs.