激光指向在提高巷道的质量、加快掘进进度、保证安全生产、在一定程度上减轻测量人员的繁琐劳动等方面都能起到积极的作用这是毫无疑义的,但在具体的条件下如何安装使用才能充分发挥其效率,这是在使用激光指向中必然会碰到的问题。我矿开采的煤层属急倾斜薄煤层,采用斜坡上行采煤法进行开采,由于采煤方法的需要,采区的集中溜煤、回风等各种上山比较多,上山斜长一般为300米左右。为了缩短上山掘进的工期,在施工中又常常采用对向同时施工的方法,即由上往下做100米,由下往上做200米在上山的2/3的 It is beyond doubt that laser pointing can play an active role in improving the quality of the roadway, speeding up the excavation progress, ensuring safety in production and easing the cumbersome work of the surveyors to a certain extent. However, it is no doubt that the laser is installed under specific conditions Use to be able to give full play to its efficiency, which is bound to encounter problems in the use of laser pointing. Due to the need of coal mining method, the mining area has a large number of uphill slopes such as concentrated coal and return air, and the slope length is generally 300 meters about. In order to shorten the construction period of tunneling in the mountains, it is common to adopt the method of simultaneous and opposite construction in construction, that is, to make 100 meters from top to bottom and to make 2 to 3