二等水准测量实习报告

PAGE27 班级：测绘一班小组号：二组组员：成绩：指导教师：刘成龙西南交通大学测量系2012年3月二等水准测量实习报告 目录TOC\o"1-1"\h\u12463一：高程控制网的技术设计 29119二：二等水准测量实习概述 224466三：测段高差较差情况 326080四：水准测量高差观测值平差成果表 531540五：水准测量高程平差值和精度成果表 532366六：实习总结报告 6一：高程控制网的技术设计1、技术规范:GB50026-2007《工程测量规范》、GB2006-10-01《国家一、二等水准测量规范》。2、水准测量的主要技术要求等级每千米高差全中误差（mm）线路长度（km）水准仪型号水准尺观测次数往返较差附合或环线闭合差与已知点联测附合或环线平地（mm）山地（mm）二等2DS1因瓦往返各一次往返各一次—3、二等水准观测的主要技术要求(1)水准仪型号：DAN03（2）视线长度：大于3m小于50m（3）前后视的距离较差：小于1.5m（4）前后视的距离较差累积差限差：小于6m（5）视线离地面的最低高度：大于0.3m小于2.80m（6）往返测高差较差限差：0.6mm（7）基、辅分划或黑、红面读数较差限差：小于0.4（8）基、辅分划或黑、红面所测高差较差限差：小于0.6（9）附和或闭合路线闭合差限差：小于4√R（10）每公里水准测量偶然中误差限差：±1mm（11）每公里水准测量全中误差限差：±2mm（12）检测间歇点高差的允许误差:±1.0mm二：二等水准测量实习概述实习目的：熟悉并掌握二等精密水准测量的详细操作流程，各方面指标以及规范，培养良好的操作习惯以及工作态度，熟练各个工作环节的工作任务）实习内容：对学校测量场地的部分水准点用精密仪器进行二等水准测量。组员：蓝天，任勇，刘胜，姚雪清测区概况：学校实习场地及六教周围控制点，测区地面平坦，观测点与已知点之间有一定起伏高差。示意图水准网示意图（往测）绘图者 刘胜 日期2012.3三：测段高差较差情况测段起

终点测段长R(km)往返测限差(mm)往测高差(m)返测高差(m)往返测不符

值△(mm)高差中数(m)D6010.09862212.56-1.016281.01595-0.331.10-1.01612B200.0494388.890.01012-0.01013-0.010.000.01013B190.0528879.200.01447-0.014350.120.270.01441B180.0454768.530.00685-0.00692-0.070.110.00689B170.0448838.470.02840-0.028400.000.000.02840B160.0476778.730.01286-0.01295-0.090.170.01291B150.0448588.470.01061-0.01068-0.070.110.01065B140.0432098.31-0.001860.00172-0.140.45-0.00179B130.0438038.37-0.010080.01007-0.010.00-0.01008B120.0454878.53-0.009070.009070.000.00-0.00907B110.0454378.530.00687-0.006820.050.060.00685B100.0475218.720.04979-0.049750.040.030.04977B90.0469278.670.04965-0.049570.080.140.04961B80.0454028.52-0.044290.044450.160.56-0.04437B70.0440188.39-0.036760.036800.040.04-0.03678B60.044648.45-0.001300.001390.090.18-0.00135B50.0487878.840.02177-0.021710.060.070.02174B40.0459298.570.00763-0.007480.150.490.00756B30.0451198.50-0.009920.009940.020.01-0.00993B20.0441218.40-0.000210.000230.020.01-0.00022B10.22469718.961.31194-1.31247-0.531.251.31221D605Σ1.1989380.40119-0.40161-0.420.4014每公里高差中数偶然中误差=±0.02mm四：水准测量高差观测值平差成果表起点终点观测高差（m）改正数（mm）平差值（m）精度（mm）距离（km）D601B20-1.016280.02-1.016260.080.09860B20B190.010120.020.010140.080.04940B19B180.014470.020.014490.080.05290B18B170.006850.020.006870.080.04550B17B160.028400.020.028420.080.04490B16B150.012860.020.012880.080.04770B15B140.010610.020.010630.080.04490B14B13-0.001860.01-0.001850.080.04320B13B12-0.010080.01-0.010070.080.04380B12B11-0.009070.02-0.009050.080.04550B11B100.006870.020.006890.080.04540B10B90.049790.020.049810.080.04750B9B80.049650.020.049670.080.04690B8B7-0.044290.02-0.044270.080.04540B7B6-0.036760.02-0.036740.080.04400B6B5-0.001300.02-0.001280.080.04460B5B40.021770.020.021790.080.04880B4B30.007630.020.007650.080.04590B3B2-0.009920.02-0.009900.080.04510B2B1-0.000210.02-0.000190.080.04410B1D6050.019480.020.019500.110.22470五：水准测量高程平差值和精度成果表点名高程（m）精度（mm）D601531.2435D605531.6451B20530.22730.11B19530.23740.13B18530.25190.15B17530.25870.17B16530.28720.18B15530.30000.18B14530.31070.19B13530.30880.20B12530.29880.20B11530.28970.20B10530.29660.20B9530.34640.20B8530.39610.20B7530.35180.20B6530.31500.20B5530.31380.19B4530.33550.19B3530.34320.18B2530.33330.17B1530.33310.16六：实习总结报告本次实习虽说难度不大，任务简单但对于现阶段的我来说还是挺有挑战性的，一是因为以前学的知