Objective: To understand the harm degree of underground noise and provide basis for noise control. Methods: In November 2019, 13 typical coal mines in Sichuan Province were selected as the research objects, and a total of 1203 sites and 609 jobs of noise exposure were investigated. Results: The noise intensity P75 >80 dB (A) was measured. The noise intensity of the inspection place of the air compressor is >86 dB (A) , the noise intensity of the inspection place of the gas drainage and the operation place of the main fan is between 80-85 dB (A) . Conclusion: Besides the harm of dust, noise exposure should also be paid attention to, and the measures of sound absorption and sound insulation should be taken or personal protection should be strengthened.
目的： 为了解井下噪声危害程度，并且为噪声措施控制提供依据。 方法： 于2019年11月，选择四川省13个典型煤矿作为研究对象，共计1 203个点位、609个工种进行噪声暴露情况调查，并对工作场所噪声数据进行统计学分析。 结果： 测量结果中噪声强度P75>80 dB（A）。其中打眼工、放炮工、支护工和司机等工种测量值>80 dB（A）；空压机巡视处噪声强度>86 dB（A），瓦斯抽放巡视处、主通风机操作处的噪声强度介于80~85 dB（A）。 结论： 煤矿井下作业噪声暴露应及时采取吸、隔声控制措施或加强个人防护。.
Keywords: Coal mine; Downhole noise; Noise intensity; Noise measurement.