CAJ | 학술논문

三角高程测量是一种间接测高法,施测速度快,不受地形起伏的限制,在测定控制点平面位置过程中同时测定其高程。三角高程测量受到地球曲率和大气折光的影响,球差使所测高差减小,气差使所测高差增大。采用全站仪对向观测进行三角高程测量,提高观测视线的高度,利用短边传递计算高程,选择气象变化不大的时间进行观测,减弱大气折光的影响,提高三角高程测量的高差精度。
삼각고정측량시일충간접측고법,시측속도쾌,불수지형기복적한제,재측정공제점평면위치과정중동시측정기고정。삼각고정측량수도지구곡솔화대기절광적영향,구차사소측고차감소,기차사소측고차증대。채용전참의대향관측진행삼각고정측량,제고관측시선적고도,이용단변전체계산고정,선택기상변화불대적시간진행관측,감약대기절광적영향,제고삼각고정측량적고차정도。
Trigonometric leveling is an indirect method,which is fast in surveying and not affected by the topographic undulation.It finishes elevation surveying in the process of positioning the control points.Trigonometric leveling is affected by earth curvature and atmospheric refraction,earth curvature reduces the value of the elevation surveying result while atmospheric refraction enlarges it.Trigonometric leveling using total station bilateral observation,which raises the height of visual line,calculates elevation using short side transference and observes at stable weather to reduce the affection of refraction,improves the accuracy of trigonometric leveling.