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随着水电工程施工环境保护要求的提高,施工期噪声影响及相应的环保措施日益受到关注。为减少噪声对周边居民的影响,采用点声源模式和Cadna/A声场仿真软件预测模式预测了大渡河沙坪二级水电站砂石料系统的噪声影响,提出了隔声环保措施,并比较了噪声防治措施前后的噪声预测值。结果表明,采取噪声防治措施后,减少了噪声对周边居民的影响,昼夜均未出现噪声超标情况,能满足相应声功能要求。
With the improvement of environmental protection requirements for the construction of hydropower projects, the noise impact and corresponding environmental protection measures during the construction period have drawn increasing attention. In order to reduce the impact of noise on the surrounding residents, the point source model and the prediction model of Cadna / A sound field simulation software are used to predict the noise impact of sand and gravel system of Shadian No.2 hydropower station in Dadu River. Sound insulation and environmental protection measures are proposed and noise control Predict the noise before and after the measure. The results show that noise control measures are taken to reduce the impact of noise on surrounding residents. No noise is found over the whole day and night, which can meet the corresponding acoustic function requirements.