测量试题及答案

#/191!1.7471.821前52.0086.796-137.437.5后一前-0.074-0.175+1-0.1-0.34．计算结果如下表：水准测量成果调整表测点测站数高差值高程m备注观测值m改正数mm调整值mBM1102.134+102.14444.313N146.45781.424+81.432N247.8898-1.787+8-1.779N346.11011-1.714+12-1.702N444.40812-0.108+13-0.095BM144.31349-0.051+510E实测高差£h=-0.051m 已知高差二H终-H始=0高差闭合差f=-0.051m 容许闭合差f产±10'n=±70mmf_+51———h-= 一个测站的改正数二f_+51———h-= 一个测站的改正数二Zn 49氏+1mm5．计算结果如下表：OB27145002左A901148913306913303B1814454右A2701212913300B145126．计算结果如下表：测站目标竖盘位置竖盘读数°,〃半测回角值°,〃一测回角值°,〃指标差〃竖盘形式OM左8118428411884124+6全圆式顺时针注记右278413084130N左1240330-340330-340318+12右2355654-3403067.相对误差：k1=1/1200,k2=1/3590,因为相对误差k1>k2；所以第二段距离丈量比较精确。两段距离丈量的结果分别为：d1=126.73m,d2=357.28m。D=264.686m。计算结果如下：a23=80°52,54〃a23=80°52,54〃a34=199°35,34〃

a42=318°25,40〃a32=260°52,54〃R23=80°52,54〃a43=19°35,34〃R34=19°35,34〃a24=138°25,40〃R42=41°34,20〃aAB=89°20,30〃、aED=313°20,10〃。两段距离的中误差m1=m2=±0.26m。由于第一段距离比第二段长，所以第一段的相对中误差小于第二段的相对中误差。aBA=244°31,04〃；aCA=197°26,36〃。计算结果如下表：占八、、号坐标方位角距离（m）增量计算值（m）改正后增量（m）坐标值△x△y△x△yxyA125°30,30〃105.22-61.11+85.65-61.13+85.67500.000500.000B438.87585.6753°18,43〃80.18+47.90+64.30+47.88+64.32C486.75649.99306°19,15〃129.34+76.61-104.21+76.59-104.19D563.34545.80215°53,17〃78.16-63.32-45.82-63.34-45.80A500.000500.000E392.90+0.08-0.08

辅助计算：fx=+0.08fy=-0.08fD=0.113K=1/3400xaBi=65°42’47〃；a12=146°23’12〃；a2c=108°33’12水平距离：D=125.24米；高程Hm=118.334米。a=9°35/30〃为左转角；a=14°34’24〃为右转角。计1算结果如下表： 2测点水准尺读数(m)视线高程(m)高程(m)备注后视中视前视BM 5 1.426419.054417.628K4+9800.87418.18K5+0001.56417.49+0204.25414.80+0401.62417.43+0602.30416.75ZD 10.8762.402417.528416.652+0802.42415.11+092.41.87415.66+1000.32417.21ZD 2 1.2862.004416.810415.524+1203.15413.66+1403.04413.77+1600.94415.87+1801.88414.93+2002.00414.81ZD32.186414.624T=68.71m；L=135.09m；E=7.77m；D=2.33m。JD=K3+182.76；ZY=K3+114.05