What are the provisions on demolition construction in the green construction code of building engineering?

The green construction specification of building engineering aims at standardizing the green construction of building engineering, saving resources, protecting the environment and ensuring the safety and health of construction personnel. It is suitable for green construction of construction projects such as new construction, expansion, reconstruction and demolition. So what are the provisions for demolition construction in the Code for Green Construction of Building Engineering? The following is a detailed introduction of the demolition construction regulations in the Code for Green Construction of Building Engineering brought by Construction Network for your reference.

Before manual demolition, safety protection and dust reduction measures should be formulated. When dismantling pipelines and containers, the nature of residues should be found out, and corresponding safety measures should be taken before dismantling construction.

Machinery with low energy consumption, low emission and low noise should be given priority in mechanical demolition; And should reasonably determine the mechanical operation position and demolition sequence, and take measures to protect the safety of machinery and personnel.

Trial blasting should be carried out before blasting demolition, and the demolition scheme should be improved according to the test blasting results.

Dust prevention and flying stone prevention in blasting demolition shall meet the following requirements:

1, when drilling, dust collection device should be set up, or dust reduction measures such as drilling pipe with water should be taken.

2, blasting demolition, can be used in the location of the explosion point set water bag method or porous micro-explosion method.

3, after the completion of blasting, appropriate uses high-pressure water gun for water mist dust removal.

4. For the key protection scope, a protective bent should be set up nearby, and a metal net should be hung for protection.

When blasting demolition of chimneys, water towers and other large buildings, anti-vibration measures such as laying cushion or digging vibration-reducing ditch should be taken within the scope of collapse. In towns or densely populated areas, static blasting with low noise and little impact on the environment shall be adopted for blasting demolition, and the following requirements shall be met:

1, when using corrosive electrostatic breaker, grouting personnel must wear protective gloves and protective glasses.

2, static crushing agent shall not be mixed with other materials.

3, blasting hole-forming and crushing agent injection should not be synchronized.

4, crushing agent injection, shall not be adjacent to drilling construction.

5. After the crushing agent is injected into the hole, the operator shall keep a safe distance and shall not walk in the injection area in the hole.

6. When the static crushing is abnormal, the operation must be stopped; After finding out the reason and taking safety measures, the construction can continue.

Comprehensive utilization of demolition materials

The classification and treatment of building demolition materials shall conform to the current national standard "Technical Specification for Recycling of Engineering Construction Wastes" GB/T50743; The remaining garbage should be treated harmlessly.

Do not mix the demolished buildings with domestic garbage, and do not mix hazardous wastes with the demolished buildings.

Demolition of doors and windows, pipes, wires, equipment and other materials should be recycled.

Dismantled steel bars and profiles should be recycled after classification.

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