What is the decibel standard for construction site noise?

Construction construction is divided into several stages, and the noise limits at each stage are as follows:

During the earthwork stage, the daytime noise limit is 75 decibels and the nighttime noise limit is 55 decibels

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In the piling stage, the daytime noise limit is 85 decibels, and construction is prohibited at night

In the structural stage, the daytime noise limit is 70 decibels, and the nighttime noise limit is 55 decibels

In the decoration stage, the daytime noise limit is 65 decibels and the nighttime noise limit is 55 decibels

Daytime generally refers to 7:00 in the morning to 23:00 at night, and nighttime generally refers to 23:00 to 23:00. 7 a.m.

If the noise at the construction site exceeds the limit at the corresponding time, the environmental protection department can impose penalties on the construction site!

The maximum limit for environmental noise in the five categories of urban areas :

1. Sanatorium areas, high-end villa areas, and high-end hotel areas, 50 decibels during the day and 40 decibels at night;

2. Areas dominated by residences and cultural and educational institutions, daytime 55 decibels during the day and 45 decibels at night;

3. Mixed residential, commercial and industrial areas, 60 decibels during the day and 50 decibels at night;

4. Industrial areas, 65 decibels during the day , 55 decibels at night; 5. In areas on both sides of urban traffic trunk roads, inland waterways, main and secondary railway lines, 70 decibels during the day and 55 decibels at night (night refers to 22:00 to 6:00 the next morning).

How to take sound insulation measures during decoration

1. Windows are easier to penetrate noise than building walls, so if you want to take good sound insulation measures, window sound insulation is the best way to do it. It must be handled properly. If conditions permit, it is recommended to replace the windows with broken bridge aluminum and the glass with hollow ones, which can effectively isolate noise. If you want a good effect, you can also put a sound insulation film on the glass.

2. For noise from neighbors upstairs and downstairs, you can add soundproof cotton or soundproof materials, such as suspended ceilings, during decoration. Before installing the suspended ceiling, install a layer of soundproof cotton first, so that it will not It will affect the decoration effect, but it can also have a very good sound insulation effect.

3. Regarding the noise emitted by water pipes, users need to purchase sound insulation cotton before decoration, and then wrap the water pipes in two layers as much as possible, so as to achieve good sound insulation effect. Note that if the water pipes are not covered with sound insulation cotton, even flushing upstairs may be affected after moving in later.

Legal Basis

"Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution"

Article 39: Construction noise as mentioned in this Law, It refers to the sound generated during construction that interferes with the surrounding living environment.

Intelligent Discovery

Article 40: The construction unit shall include the noise pollution prevention and control costs in the project cost in accordance with regulations, and clarify the construction unit's noise pollution prevention and control responsibilities in the construction contract.

The construction unit shall formulate an implementation plan for noise pollution prevention and control in accordance with regulations and take effective measures to reduce vibration and noise. The construction unit shall supervise the implementation of the noise pollution prevention and control implementation plan by the construction unit.

Article 41: During construction operations in areas where noise-sensitive buildings are concentrated, low-noise construction techniques and equipment should be given priority.

The industry and information technology department of the State Council, together with the ecological environment, housing and urban-rural development, market supervision and management and other departments of the State Council, publish a guidance list of low-noise construction equipment and update it in a timely manner.

Article 42: During construction operations in areas where noise-sensitive buildings are concentrated, the construction unit shall, in accordance with national regulations, set up an automatic noise monitoring system, network with the supervision and management department, save original monitoring records, and update the monitoring data. Responsible for authenticity and accuracy.

Article 43 In areas where noise-sensitive buildings are concentrated, it is prohibited to carry out construction operations that generate noise at night, except for emergency repair and emergency construction operations that must be carried out continuously due to production process requirements or other special needs. except.

If continuous construction operations are necessary due to special needs, a certificate from the housing and urban-rural development, ecological environment department of the local people's government or the department designated by the local people's government shall be obtained, and the notice shall be announced in a prominent position at the construction site or to nearby residents in other ways.