南水北调控制测量成果.docx

1、南水北调控制测量成果中铁二十一局集团南水北调中线一期工程陶岔至沙河南段（叶线段）TS-YX-1标段加密施工控制网桩号：(185+545193+500)复测报 告中铁二十一局集团五公司精测队2011年02月23日目录一、工程概况 21测区工程概况 22测区控制点概况 2二、复测技术及依据 21坐标系统 22GPS控制网观测等级及要求 33GPS控制网观测网形 34GPS观测仪器类型与精度 35测量数据处理方法 36观测依据及规范 3三、施工控制网复测成果与精度分析 31GPS控制网网图 32重复基线较差精度分析 53闭合环精度分析 64三维无约束平差结果 105二维约束平差结果 18四、坐标成果

2、表 27五、复测坐标与设计坐标对照表 28六、测量结论及说明 291测量结论 292说明 29一、工程概况1测区工程概况南水北调中线一期工程总干渠陶岔渠首至沙河南叶县段工程位于叶县西南，南起叶县保安镇以南约2km的方城与叶县县界，桩号185+545；北至叶县养凤沟村以北约1.2km的叶县与鲁山县县界，桩号215+811，其中桩号209+270210+130为澧河渡槽单独作为设计单元另行招标，叶县段实际长度为29.406km。TS-YX-1标段起讫桩号为：185+545193+500，全长7.955km。包括长7.955km的渠道及沿线布置的各类建筑物13座，包括：1座渠交叉建筑物，4座左岸排水

3、建筑物，4座公路桥，4座生产桥。测区起始于方城与叶县交界处三里河，沿伏牛山脉东麓山前岗丘地带及山前倾斜平原，总体呈弧形沿西北方向，穿越伏牛山东部山前坡洪积裙及淮河水系冲积平原后缘地带。地形总体山前丘陵地势西高东低，南高北低之势。地面高程130150m，地形起伏较大。测区属北亚热带北缘，受季风进退影响，四季分明。一年中春秋两季较短，冬夏历时较长。春季温度回升快，前期少雨干旱，后期间有低温阴雨；夏季受西太平洋副热带高压控制，气温高而降雨多；秋季昼暖夜凉，温差较大，并时有连绵阴雨；冬季受强大的西伯利亚和蒙古冷高压控制，干燥寒冷，雨雪稀少。2测区控制点概况测区加密控制点41个，级点2个，为设计交桩点，

4、各点埋深0.6m，上有盖板保护，保存完整，无任何损坏。测区控制点共43个，组成平面首级控制网。二、复测技术及依据1坐标系统测区坐标系统采用1954北京坐标系统。椭球参数为：长半轴a(m)=6378245，扁率=1/298.3。坐标系采用1954北京大地坐标系基本椭球参数按选定的中央子午线和高程投影面进行坐标转换。测区所处投影为：序号分界桩号范围中央经度投影面正常高投影面大地高1185+545193+500113-2GPS控制网观测等级及要求本次GPS控制测量复测按设计控制网同等级的精度复测，即按D级(全球定位系统（GPS）测量规范GB/T18314-2009规定)GPS网的精度进行观测。其观测

5、要求为：D级GPS测量作业基本技术要求卫星截止高度角（）同时观测有效卫星数有效时段长度（min）观测时段数数据采样间隔（s）接收机类型PDOP或GDOP15445121560单频/双频103GPS控制网观测网形本次测量控制网网形与设计网形一致，构成三角形或大地四变形带状网，边联式构网。4GPS观测仪器类型与精度本次外业采用4台Trimble SPS781双频GPS接收机观测，标称精度为(5mm+1ppmD)。仪器均经检测机构检定合格，在有效期内，满足规范要求，可用于本次测量工作。5测量数据处理方法本次GPS平面观测结果由Trimble数据处理软件TGO处理基线，达到技术设计精度后，采用商用工程

6、测量GPS控制网平差软件平差：控制网整体先在WGS-84坐标系进行三维无约束平差，然后以设计交桩点为联测点进行二维约束平差，并转换成南水北调中线一期工程TS-YX-1标施工坐标系(1954北京大地坐标系统)。6观测依据及规范(1) 全球定位系统（GPS）测量规范GB/T18314-2009；(2) 南水北调中线一期工程TS-YX-1标段施工控制网设计文件。三、施工控制网复测成果与精度分析1GPS控制网网图2重复基线较差精度分析重复基线长度差值起点终点DX(m)DY(m)DZ(m)S(m)S限差/差值(mm)备注JC252JC25315.1524193.4268-261.8404325.8894

7、14.1700合格15.1543193.4240-261.8449325.89152.0421JC249JC248447.975693.7698143.5172479.658314.2049合格447.975393.7695143.5191479.65850.2297JC254JC256465.186185.4761167.3136501.695214.2110合格465.190785.4698167.3090501.69691.6579JC250JC251-481.850651.1006-360.2944603.823914.2427合格-481.851351.1027-360.294260

8、3.82450.6170JC246JC247-401.4893-64.5487-157.6003436.117014.1937合格-401.4964-64.5495-157.6026436.12457.4858JC244JC245-59.5472222.0385-343.4190413.259714.1882合格-59.5436222.0351-343.4231413.26081.0617JC241JC240-350.1647-12.2501-195.4628401.212014.1854合格-350.1685-12.2472-195.4609401.21432.3024JC237JC2364

9、34.851252.5763205.5142483.834614.2060合格434.849752.5807205.5170483.83490.3194JC243JC242198.6661-45.4499188.1409277.364214.1617合格198.6632-45.4478188.1460277.36531.0382JC238JC239-472.5087-119.6454-140.7817507.345014.2126合格-472.5074-119.6499-140.7852507.34590.8217JC235JC234-427.7562-157.6352-49.1119458.

10、515214.1993合格-427.7544-157.6434-49.1033458.51540.2189JC231JC232119.7273213.0042-199.9834315.751114.1682合格119.7271213.0054-199.9839315.75221.0504JC227JC230435.3134301.8534-143.9699548.945014.2250合格435.3136301.8539-143.9710548.94570.7220JC223JC226427.8221385.0548-273.1559637.113114.2543合格427.8284385.0

11、499-273.1597637.11602.8983JC229JC233173.9673359.2616-351.1527531.640614.2197合格173.9693359.2621-351.1541531.64251.9170JC225JC228442.7033327.7838-173.0101577.374214.2340合格442.7037327.7844-173.0086577.37440.1979JC221JC224156.2521532.4173-648.2937853.327414.3444合格156.2608532.4219-648.2932853.33154.0833J

12、C220JC222-221.6838176.1431-368.1437464.435014.2009合格-221.6869176.1475-368.1437464.43823.1485JC218JC219374.414984.3471112.6597399.991414.1852合格374.417384.3442112.6588399.99281.38153闭合环精度分析独立环闭合差计算结果线路各点名X/Y/Z闭合差限差(mm)X闭合差(mm)Y闭合差(mm)Z闭合差(mm)S闭合差限差(mm)S闭合差(mm)线路总长度(m)ppm备注JC253 JC254 JC25226.35-0.200.

13、500.1045.640.552542.87930.22合格JC248 JC250 JC24926.080.00-0.10-0.1045.160.141282.34180.11合格JC254 JC255 JC25726.130.20-0.20-0.1045.250.301594.64450.19合格JC256 JC255 JC25726.120.90-0.90-0.4045.251.331569.80440.85合格JC256 JC255 JC25426.100.000.100.1045.200.141430.71300.10合格JC251 JC252 JC25026.080.100.000.

14、0045.180.101333.18770.08合格JC247 JC249 JC24626.09-0.100.000.1045.190.141377.81350.10合格JC245 JC246 JC24426.120.10-0.30-0.3045.230.441529.03220.29合格JC240 JC243 JC24126.140.10-0.20-0.3045.280.371671.14370.22合格JC236 JC238 JC23726.25-0.10-1.30-0.2045.461.322152.83230.61合格JC242 JC244 JC24326.16-5.404.806.5

15、045.319.721772.94725.48合格JC239 JC241 JC23826.060.601.602.2045.142.791200.32472.32合格JC234 JC236 JC23526.09-0.50-0.203.7045.183.741347.99022.77合格JC232 JC235 JC23126.10-0.20-0.20-0.2045.200.351430.71230.24合格JC230 JC229 JC22726.07-0.000.000.1045.150.101242.06460.08合格JC226 JC225 JC22326.14-0.601.603.9045

16、.284.261667.50152.55合格JC233 JC231 JC22926.050.100.200.0045.130.221124.35380.20合格JC228 JC227 JC22526.06-0.100.200.0045.140.221199.00850.19合格JC224 JC226 JC22126.310.200.900.9045.571.292399.56180.54合格JC222 JC221 JC22026.12-0.10-0.300.2045.230.371532.97900.24合格JC219 JC220 JC21826.100.000.000.0045.200.10

17、1412.12440.07合格ML700 JC240 ML69926.31-2.801.9010.0045.5610.562378.90414.44合格JC256 JC254 JC25226.42-6.107.204.7045.7710.542781.02233.79合格JC251 JC250 JC24926.14-0.602.000.0045.28,2.091669.27741.25合格JC256 JC254 JC25326.25-5.707.004.8045.4710.222184.42684.68合格JC250 JC252 JC25326.072.00-3.00-4.6045.165.8

18、41246.07854.69合格JC251 JC252 JC25326.082.10-3.00-4.6045.165.881284.26784.58合格JC251 JC250 JC24826.15-0.70,2.000.3045.292.141717.68481.25合格JC246 JC249 JC24826.10-0.10-0.501.7045.211.771449.86681.22合格JC247 JC249 JC24826.08-0.10-0.601.6045.181.711331.53841.29合格JC244 JC246 JC24726.177.300.602.2045.337.651

19、818.16434.21合格JC242 JC243 JC24126.100.90-1.90-6.9045.217.211447.93364.98合格JC239 JC238 JC23626.191.20-4.70-3.2045.365.811892.70733.07合格JC245 JC246 JC24726.067.200.702.2045.137.561154.45566.55合格JC243 JC244 JC24526.186.40,-6.20-6.1045.3510.801883.93265.73合格JC242 JC244 JC24526.313.00-3.70-1.4045.584.962

20、410.54442.06合格JC242 JC243 JC24026.121.60-2.40-7.6045.238.131533.93675.30合格JC238 JC241 JC24026.103.60-2.50-0.9045.204.471418.39743.15合格JC239 JC241 JC24026.063.80-4.30-3.9045.136.941139.22056.09合格JC239 JC238 JC23726.231.50-4.30-3.8045.435.932076.61852.86合格JC235 JC236 JC23726.08-1.605.502.9045.176.4212

21、89.61244.98合格JC234 JC236 JC23726.12-1.802.302.9045.244.121553.64582.65合格JC231 JC235 JC23426.17-1.808.10-8.9045.3312.171819.59486.69合格JC233 JC229 JC22726.122.200.10-1.4045.242.611542.52331.69合格JC228 JC225 JC22626.110.300.301.0045.221.091492.03490.73合格JC232 JC235 JC23426.08-1.908.30-8.9045.1812.321325

22、.53829.29合格JC229 JC231 JC23226.060.200.50-0.7045.130.881154.28810.77合格JC233 JC231 JC23226.01-0.101.00-0.6045.061.17750.32481.56合格JC233 JC229 JC23026.112.000.30-1.5045.222.521493.56331.69合格JC225 JC227 JC23026.160.40-0.10-2.2045.312.241771.65571.26合格JC228 JC227 JC23026.050.200.60-0.9045.131.101134.628

23、30.97合格JC228 JC225 JC22326.230.500.702.6045.422.742065.07751.33合格JC221 JC226 JC22326.364.80-3.90-4.1045.657.422562.97242.90合格JC224 JC226 JC22326.085.90-3.60-3.5045.187.751328.65925.83合格JC220 JC221 JC22426.429.303.40-0.8045.779.932785.67733.57合格JC222 JC221 JC22426.229.103.30-0.3045.419.682023.45004.7

24、9合格JC218 JC220 JC22226.182.80-4.20-0.0045.355.051872.08292.70合格JC219 JC220 JC22226.133.40-4.60-0.1045.255.721597.98633.58合格JC219 JC218 JC21726.03-2.402.900.9045.093.87968.66934.00合格JC232 JC235 JC236 JC238 JC24033.914.20-2.20-12.4058.7413.283725.68233.56合格JC232 JC240 ML69926.70-0.801.401.3046.252.073

25、564.39910.58合格JC232 JC240 ML70026.672.80-2.00-13.7046.1914.133466.28674.08合格4三维无约束平差结果已知坐标(X,Y,Z)No.NameX(m)Y(m)Z(m)1ML700-2104499.75544897132.35693491277.3023GPS三维基线向量观测值No.FromToVectorDX(m)VectorDY(m)VectorDZ(m)Distance(m)1JC255JC257-510.314-36.570-256.857572.4802JC255JC254-537.179-283.94569.719611.5943JC255JC256-71.988-198.476237.028317.4224JC252JC25315.154193.424-261.845325.8915JC252JC25315.152193.427-261.840325.8896JC252JC254-511.851499.531-1019.0481244.9837JC252JC256-46.666585.008-851.7351034.3438JC252JC25079.014-146.135251.490301.4079JC252JC2