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山东省瑙博矿务局石谷矿过去在重要水平巷道标设腰线和延长腰线时都是采用水准仪,一般水平巷道用悬挂半园仪。前一种方法精度高,但需要比较精密的水准仪,携带不方便,仪器经常下井易损坏。后一种方法携带方便,但精度太低,又不可靠。石谷矿于1965年开始采用联通管腰线仪给腰线,在实践中获得了良好的效果。联通管腰线仪构造十分简单,它是由一根4—6米左右的胶皮管和插在胶皮管两端的两根长为100毫米左右的玻璃管或有机玻璃管组成。我们采用了弹性较好的输液输血管和普通玻璃管(直径均为8毫米)做腰线仪。在两个玻璃管上套上长约
Stone Valley mine in Shandong Province Naubo Mining Bureau in the past marked the waistline and the extension of the waistline is an important level are used level, the general level of semi-circular suspension with the roadway. The former method has the advantages of high precision, but requires a more precise level and is inconvenient to carry. The instrument often goes down well and is easily damaged. The latter method is easy to carry, but the accuracy is too low and not reliable. Stone Valley mine in 1965 began to use Unicom tube waist line instrument to the waist, in practice, achieved good results. Unicom tube waistline instrument structure is very simple, it is a 4-6 meters around the rubber tube and inserted in both ends of the rubber tube length of about 100 mm glass or organic glass tube composition. We use a flexible elastic infusion tube and ordinary glass tube (diameter of 8 mm) to do the waist line instrument. Put on the two glass tube about