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坑道鑽岩作业过程中所产生的粉尘,对作业人员的健康有一定影响。为了保障作业人员的健康,曾对某工区坑道鑽岩作业产生粉尘情况,进行实验调查和改善措施,现总结如下:一、坑道工程概要工地位于山区花岗岩地带。分别以湿式、湿式喷水、干式机械鑽岩、手工鑽岩四种方式作业。以连为作业队,每队分四班,按三八制四班轮换,每班鑽孔平均为14个,孔深70-80公分,经常有二部鑽岩机在同一作业面同时操作,鑽岩者经常保持4-5人,另有4-5人进行扒渣与搬运等工作。作业人员每日平均接触粉尘时间约为6小时。二、坑道鑽岩粉尘产生情况
Dust drilling dust generated during the operation of the mine, have a certain impact on the health of workers. In order to protect the health of operators, dust was generated from drillings in a work area tunnel. Experimental investigations and improvement measures are as follows: I. Summary of Tunneling Works The site is located in the granite area of the mountainous area. Respectively to wet, wet sprinkler, dry mechanical rock drilling, manual drilling four ways of homework. To even as the operating team, each team divided into four classes, according to the March 8 rotation system, each class average of 14 holes, 70-80 cm deep hole, often with two drilling rig at the same time operation at the same time, Drilling rock often keep 4-5 people, and another 4-5 people for slag and handling work. Daily average dust exposure time of about 6 hours. Second, tunnel drilling rock dust situation