This paper takes the 1 exploration lane of 35204 working face in three mining area of Xinbai Coal Mine,In order to ensure the stability of the coal mine roadway during coal mining,Combined with the working face site and the geomechanics conditions,Calculate the support parameters of the water exploration roadway of the working face and provide the field support of the working face,The monitoring results show that the top floor and two gang moves mainly occurred from 4 to 5 two months,Two shifts are 500 mm,At the same time,the roof layer is concentrated in July to October,The interlayer amount is about 60 mm,Therefore,it is necessary to monitor the two close,the bottom drum and the top subsidence,Take the measures of reinforcing the anchor rod or anchor cable for reinforcement,At the same time,the roof sinking area set up strong support,Upon field verification,The overall support effect meets the demand of coal mine production.
关键词
支护参数/理论计算/监测/补强支护
Key words
support parameters/theoretical calculation/monitoring/reinforcement and support
维普
万方数据