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在井下生产中为了解决通风、行人(?)溜煤等问题通常需要通过空间一个特定的已知点向一条已知直线斜巷开掘联络巷,这种联络巷有长度、方向和倾角各不相同的许多条、其中有一条是最短的联络巷。一般说,为了解决通风、行人等问题,对倾角没有严格要求,最好是开掘一条最短联络巷,但为了解决溜煤等问题,对倾角有一定要求,需要开掘定倾角联络巷。测量人员要根据采矿设计的不同要求,分别准确地标定这两种联络巷的长度、位置和方向等。本文试用数学中求算极值和解二次三项式的方法解算这两种问题。
In underground production, in order to solve the problems of ventilation, pedestrians (?) Slipping coal usually need to dig out a connecting lane from a known point in the space through a known straight line with different lengths, directions and inclinations Many of them, one of them is the shortest contact lane. Generally speaking, in order to solve problems such as ventilation and pedestrians, there is no strict requirement on inclination, and it is better to dig a shortest connecting lane. However, in order to solve the problem of slopping coal and other issues, there are certain requirements on inclination and need to dig up the fixed angle of contact lane. According to the different requirements of mining design, the surveyors should accurately calibrate the length, location and direction of the two kinds of connecting lane respectively. In this paper, we try to solve these two problems by solving the extremum and solving quadratic in mathematical.