"Construction Project Construction Dust Control Management Standards"

Build Ecological City to Build Beautiful Tianjin

Tianjin Municipal Urban and Rural Construction and Transportation Commission "Dust Control Management Standard for Construction Project Construction"

I. Construction Management Standards for Construction Sites

Construction site construction will focus on six aspects of dust control measures, including site enclosure, hardening of main roads, standard material stacking and stacking of loose materials, equipped with on-site entrance and exit facilities, closed mesh facades, and prohibition of on-site mixing of concrete. The specific criteria are as follows:

(I) On-site fence standards

The construction site fence strictly implements the “Atlas of the Construction Site of Tianjin Construction Site” and the “Atlas of the Civilized Construction of the Tianjin Urban Rail Transit Project”. The building and subway construction sites are constructed with solid wall decoration or steel frame enclosures. There are foundations and wall caps, equipped with night lighting equipment, and the height shall not be less than 2.5 meters. The greening or hardening paving measures shall be adopted at the connection between the outside of the enclosure and the road, and the white color steel plate shall be used at the municipal road and bridge construction site. The height shall not be less than 2 meters. There must be no gap between the root of the enclosure and the ground. It must be stable, safe, tidy, and beautiful. .

(II) Main road standards on site

The roads on the construction site of the construction project shall be hardened with concrete, and the sprinkler shall be cleaned to reduce dust in time so as to meet the standard for vehicles without dust.

(3) Standards for stacking materials and dismantling materials on construction sites

(1) Bare grounds should be greened or covered with green dust-proof nets.

(2) Where piles of loose materials such as sand and stone are piled up on the construction site, a stacking tank with a height of not less than 0.5 m shall be provided, and a full lid shall be applied to the exposed part of the material. Earthwork, construction waste, and construction waste should be piled up in a centralized manner. The stacking height must not exceed the height of the enclosure, and measures should be taken to cover and solidify the waste. The lid cover measures must be fully enclosed to achieve a void-free lid cover standard.

(3) Various facilities, construction materials, equipment and equipment, on-site products, semi-finished products, components and accessories, and other materials of the construction site shall be stored in accordance with the area delineated in the general plan of construction, and shall be marked, and shall not be mixed or under construction. Outside the scene without permission.

(D) Site entrance standards

Vehicle flushing devices must be installed at the entrances and exits of all construction sites in the city. The flushing platform should be installed inside the construction gates. Drains should be provided around the gates. Drains should be connected to the sedimentation tanks. Mud and waste water should be discharged according to the regulations. The sedimentation tanks should be cleaned regularly Drainage pipe network connected. Each site shall be equipped with full-time personnel in accordance with the entry and exit conditions of the transport vehicles on the construction site. It shall be responsible for flushing the wheels and bodies of the material transport vehicles exiting the construction site to meet the standards for vehicles without dirt on the road. The entrance and exit set surveillance cameras, surveillance video local hard disk storage time of not less than one month.

(5) Closed standard for dense mesh network of buildings

The facade of a building project must be completely closed with a dense-grained safety net of not less than 2,000 mesh in size, kept clean and closed tightly. Construction waste and waste should be cleaned and transported with closed string or other effective dustproof measures, and should not be dumped from high places in buildings.

(6) Other requirements

Commercial concrete and ready-mixed mortar must be used on the construction site. The city prohibits mixing of concrete and ash on the construction site, prohibits open storage of cement and lime in the open air, prohibits the burning of hazardous materials such as garbage, and prohibits the use of coal, wood, linoleum, paint, and other materials as combustion energy. Cutting dust and other dust production operations should take dust reduction measures.

Second, ready-mixed concrete mixing station

The focus of dust control of premixed concrete mixing plants is dust accumulation in the gravel yard and in the plant area. The specific criteria are as follows:

(A) Standard for Sand and Stone Yards

1. Uncompleted sand and gravel yards shall be covered with dense meshes or tarpaulin, and shall be stacked separately according to their place of production, type and specifications, so that they are orderly and orderly; sand and gravel yards shall be partitioned and closed on three sides; Before the yard, the site shall be sprinkled and cleaned in a timely manner, not less than twice a day, and the number of sprinkler sweeps shall be appropriately increased according to the production and external environment wind conditions, so as to meet the standard that the dust does not rise.

2. The sand silo (the material inlet) is closed on three sides, reducing the dust pollution generated when the forklift is feeding.

3. Regularly inspect whether the apron of bulk car can be replaced timely, avoid air leakage, control the emission when ashing, avoid leakage, regularly check the tightness of the pipeline, avoid pipeline pollution and pollute the environment, check and maintain at least once a week once.

4. Regularly inspect the dust removal condition of the powder bin filter cartridge, and periodically clean and replace the powder bin filter cartridge, clean up once every 1000 tons of material, and replace the filter element once every 10,000 tons of material.

(II) Factory Road Standards

1. Surrounding walls and gates should be set around the site. The production area and office living area should be divided according to function. Sporadic spaces other than people and vehicles should be planted with trees and grasses in order to beautify the environment.

2. Establish a civilized production and management responsibility system, implement the system of listing by region, and clearly manage the responsible person. The roads in the venues should be regularly sprinkled and cleaned. They should be cleaned at least twice a day and watered three times. The number of sprinkler cleanings should be appropriately increased according to the production and external environment wind conditions to ensure that there are no dust and debris, so that the venue is clean and tidy.

3. The parking area of ​​large-scale mechanical vehicles such as concrete tankers, loaders, vehicles, pumps, etc., as well as the roads and grounds in the venue shall be uniformly hardened to avoid flying dust and mud after rain.

4. Within 5 meters of the gate outside the exhibition area, it is necessary to clean the sprinkler at least twice a day, and appropriately increase the number of sprinkler sweeps according to the production and external environment wind conditions to ensure that the dust does not rise and reduce the dust pollution caused by the atmosphere.

5, when the concrete tanker exit area needs to check the tires, tires such as belt mud must be cleaned before they can play, from the site after the implementation of the provisions should also be implemented.

Third, engineering waste transportation

1. The entrance and exit of the construction site shall be hardened no less than 30 meters, and the vehicle washing facilities shall be set up to flush the wheels of the slag-and-land vehicle wheels in the exit field area to reach the standard for vehicles without dirt on the road.

2. The construction site should be equipped with special persons to clean the roads around the site entrances and exits of the construction sites, so as to meet the standard for vehicles without dust.

3, the waste transport vehicles must be sealed and transported in flat tanks. The residue soil must not exceed the side of the vehicle and the shipment of wet mud must not be carried out.

4. The road in the foundation pit shall be hard paved and no floating soil shall be allowed to prevent the vehicles from driving past to cause dust.

5. It is forbidden to spill slag soil outside the enclosure. The slag and soil temporarily stored in the site site area shall be stacked and fully covered.

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