斜井斜巷在整个煤矿建设中占有很大比重,因此在施工中正确标定腰线是一项十分重要的测量工作。标定斜巷腰线一般用半圆坡度规,最近激光指向仪的广泛应用给斜巷的腰线标定带来了很大方便。但在巷道倾角大、长度短、精度要求高的倾斜井巷中,激光仪用不上,半圆坡度规达不到精度要求,特别对井巷中的机电设备安装,要求斜巷两帮都有腰线点,而且两帮腰线必须严格在同 Oblique inclined shaft occupies a large proportion of the entire coal mine construction, so the correct calibration of the waist line in construction is a very important measurement work. Calibration of inclined waistline generally use semicircle gradient gauge, the recent application of laser pointing instrument to the inclined lane of the waistline calibration has brought great convenience. However, the inclination angle of the roadway, short length, high accuracy of the inclined shaft, the laser does not have access to the semicircle gradient gauge fails to meet the accuracy requirements, especially for the installation of mechanical and electrical equipment in the shaft, Waist line point, and two waist line must be strictly in the same