摘要
煤矿地面噪声防治已经受到人们的重视,但煤矿井下噪声仍被人们所忽视,对它研究的不多。通过对开滦集团东欢坨煤矿和荆各庄煤矿进行井下噪声测量,制作噪声频谱图和噪声传播衰减趋势图,分析井下噪声的频谱特性和衰减变化,为煤矿井下降噪提供依据。结果表明所测得的煤矿井下各点噪声强度均大于90dB(A),且以中高频率为主,所以应当采取相应的针对性措施为煤矿井下进行降噪处理。
The mine surface noise prevention has been attracted more and more attention,but the noise of the underground coal mine is still neglected by people,and there are not many researches in this area.The study attempted to make noise spectrum and noise attenuation trend chart by measuring the noise of Kailuan group＇s Donghuantuo coal mine and Jinggezhuang coal mine,and the mine shaft noise frequency spectrum characteristic and weaken change were analyzed to provid a basis for the noise reduction.The results indicated that the measured noise was bigger than 90dB（A）and high-frequency primarily.Therefore,the targeted measures should be taken for noise reduction in the coal mine.
出处
《中国安全生产科学技术》
CAS
北大核心
2011年第1期72-75,共4页
Journal of Safety Science and Technology
基金
国家自然科学基金资助项目(50974061)
河北省自然科学基金资助项目(E2009001420)
关键词
井下噪声
频谱分析
降噪
underground noise
spectrum analysis
noise reduction
