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作 者:杨晓明[1] 袁天奇[1] 王伟[1] 周建业[1]
出 处:《华北水利水电大学学报(自然科学版)》2014年第2期64-68,共5页Journal of North China University of Water Resources and Electric Power:Natural Science Edition
基 金:国家自然科学青年基金项目(41101373)
摘 要:分析了以中间法测距三角高程测量代替精密水准测量的具体条件,在不同的观测条件下进行了大量的全站仪垂距观测照准误差试验,并在山区进行了中间法测量代替二等水准测量的实测验证.结果表明:在山区,测距控制在300 m范围内,且前、后视的距离差控制在8 m以内,应用中间法测距三角高程测量可以达到二等水准测量的精度.The actual conditions of replacing precise leveling with the midway method trigonometric leveling were analyzed. A lot of ex- periments were conducted about vertical sighting error of total station in the different observation conditions, and actual surveying was made in order to verify the precision of the midway method trigonometric leveling instead of second-order leveling. The results showed that the precision of the midway method trigonometric leveling could reach that of second-order leveling when the measuring distance was less than 300 meters and the distance difference between the front sight and the hack sitrht was within 8 meters in mountain areas.
关 键 词:山区 快速高程测量 高精度高程测量 中间法 三角高程测量
分 类 号:TV221.1[水利工程—水工结构工程] P224.2[天文地球—大地测量学与测量工程]
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