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由于用钢丝绳作为竖井的罐道比用钢性罐粱罐道要节省工时和材料,随着工业的发展,钢丝绳罐道将会较多应用。因此,我们对《煤矿测量手册》下册80页中关于无罐梁罐道的井筒中心测法予以新的探讨。《手册》上是用几何图解法求井心的,现用解析法求井心: 一、实测方法在井筒中悬挂两根钢丝A、B(如图1所示),并精确测定A、B的座标。然后用线绳沿A、B在井壁上标出E、F两点,并量取l、l_(EA)、l_(FB)。在井壁上选取一点G,量取l_(EG)l_(FG)。
Due to the use of wire rope as the shaft of the tank than steel tank beam tank to save time and materials, as industrial development, wire rope tank will be more applications. Therefore, we have made a new discussion about the central wellbore measurement method for the non-canned-beam can road on page 80 of the “Coal Mine Surveying Manual”. The “manual” is to use geometric method to find well, the current analytic method for measuring the well: First, the actual measurement method Suspended in the wellbore two wire A, B (Figure 1), and accurate determination of A, B Coordinates. Then use the rope along the A, B in the borehole marked E, F two points, and measure l, l_ (EA), l_ (FB). Select a point in the borehole G, measure l_ (EG) l_ (FG).