德兴铜矿的边坡雷达监测精度影响因素探讨

为探究不同因素对边坡雷达监测精度的影响,系统分析了环境中大气湿度、温度及压强的变化对大气折射度的影响,同时针对德兴铜矿采区环境,对边坡雷达监测精度的主控因素进行探讨。结果表明:大气折射度的主要控制因素为大气湿度,温度及压强对大气折射度的影响相对有限。在德兴铜矿采区,边坡雷达监测精度主要受大气湿度影响,但在每年5—10月,温度大于20℃且剧烈变化时对雷达监测精度影响较大,而大气压强的影响可以忽略不计。建议每年5—10月根据现场情况适当调大边坡雷达预警值范围,避免因湿度和温度大幅变化叠加引起的误报。

Influence of Atmospheric Refraction on Horizontal Angle Surveying

Side-refraction is the main error source of horizontal angle surveying, but it has little influence on the sides by analyzing the influence of atmospheric-infraction on the ultrahigh-precision side and angle surveying. Choosing oriented direction is crucial to distance and angle measurement in triangulateration network. How to select the oriented direction during angle measurement is presented, and the means to check the quality of auto-surveying with Georobot is brought forward as well. At last some solutions to reduce the influence of side-refraction while disposing and surveying ultrahigh-precision triangulateration network are put forward.