某水电站近坝库岸第一期GS滑坡监测技术总结

PAGEPAGE33xx水电站近坝库岸第一期GPS滑坡监测技术总结xx有限责任公司xx年xx月

目录概述数据采集基准网起算点坐标的获取基准网的数据处理变形监测点的数据处理结论和建议附录

概述2000年11月在接到xx水电站现场各项准备工作均已完成的通知后，xx有限责任公司（以下简称普赛公司）便尽快组织人员和仪器设备前往xx水电站准备进行首期GPS滑坡监测。但观测一天后即开始下大雪。考虑到现场山势陡峻，沟壑纵横，为保障作业人员的人身安全和仪器设备的安全，被迫终止观测。在对水工分厂测量班人员进行三天技术培训后天气仍未好转，故只能将首期GPS监测时间推迟至2001年春季。今年5月普赛公司再次组织人员前往xx水电站。在对水工分厂测量班人员进行仪器操作培训后，共同完成了xx水电站近坝库岸第一期GPS滑坡监测的外业数据采集任务。所用的仪器设备有xx水电站新近购买的5台JAVAD双频GPS接收机和普赛公司带去的2台JAVAD双频接收机以及1台Ashtech双频接收机。上述8台接收机均配备有高精度的chokering天线，可有效地抑制多路径误差。基准网起算点（LH13）的坐标通过与拉萨、乌鲁木齐、北京、上海、武汉等5个GPS跟踪站联测求出三维点位中误差（在WGS-84坐标系中）为±16.3mm。8个基准网点的观测在一天内完成，经平差计算最弱点平面位置中误差（相对于LH13）为±1.0mm，高程（大地高）中误差为±1.7mm。54个变形监测点的观测在三天半内完成（其中因下雨有一天未观测），实际观测时间为二天半。经计算平均平面位置中误差（相对于基准网点）为±2.6mm，高程中误差为±3.96mm。以上精度均优于技术设计中规定的指标。较圆满地完成首期监测任务。数据采集基准网观测xx水电站近坝库岸GPS滑坡监测基准网见图1。从图中可以看出除个别边长达3~4km以外。其余大多数边长均在1~2km之间。为保证基准网精度，观测时遵循下列规定：观测前对新购置的5台JAVAD接收机的性能和可靠性进行了全面检验，各项指标合格后方参加作业。各站总的同步观测时间均不少于6小时。利用8台GPS接收机同时在全网的8个基准点上进行同步观测。采样间隔取10秒，截止高度角取10°。每个基准点上均采用强制对中装制进行天线的对中，对中误差可保持在0.5mm以内。作业时按观测墩上标注的北方向线进行天线的定向。今后复测时也均按此方向线进行天线定向。观测时采用了特制的强制对中连杆。对中连杆的高度均为115mm。作业时无需再量取天线高。水工分厂事先安排好车船等交通工具，确保按作业计划和调度命令开展工作。整个基准网观测在一天内顺利完成。图1 xx水电站近坝库岸滑坡监测GPS基准网变形监测点观测首期GPS滑坡监测的变形监测点共54个。各滑坡块体点位分布情况如下：基准站变形监测点H14、H116xx滑坡：001、02、X01、X02、X16、X17H14、H116xx滑坡：004、05、X03、X04H12、H116xx滑坡：006、07、08、10、11、13、14、X05、X006、X07、X08、X09H12、H113xx滑坡：118、20、21、24、X10、X11、X12、X113、X14、X15H12、H113xx滑坡：116、17H10(ASSHTECCH)、H08、H11xx滑坡：331、32、33、35、36、37H10(ASSHTECCH)、H08、H11xx滑坡：339、40、41、42、43、44、45H06(ASSHTECCH)、H08、H11xx滑坡:447、48、49、51、52、53、54每个变形监测点至少从两个基准站上进行监测。有相当一部分变形监测点则是从3个基准点上进行监测的。这样做的好处是：不同成果间可进行相互检核，剔除粗差，提高成果的可靠性。几个成果取中数后可提高监测精度。万一某基准点点位发生了变动，从较差中有可能及早发现。因为基准网的复测周期为一年，而变形监测点的复测周期为三个月。变形监测按下列规定进行：各变形监测点的观测时间不少于20分钟。采样率改为2秒钟观测一次。观测时变形监测点采用一般的动态定位天线，基准点采用Chokering天线。其余规定与基准网相同。基准网起算点坐标的获取选取点位稳定交通方便的LH13号点作为整个基准网的起算点。利用5月19日和20日该点与拉萨（LHAS）、乌鲁木齐(URUM)、北京(BJFS)、上海(SHAO)、武汉(WUHN)等5个GPS卫星跟踪站的联测资料，采用国际GPS服务(IGS)所提供的精密星历和国际著名的高精度GPS数据处理软件Berness软件进行基线向量计算。取中数后获得起算点LH13在国际地球参考框架ITRF坐标系中的空间直角坐标(X、Y、Z)。见表1：表1 由5个GPS卫星跟踪站求得的LH13的起算坐标（X、Y、Z）GPS卫星跟踪站名时间X(m)Y(m)Z(m)北京BJFS5月19日5月20日-9760443.57783.6044950694999.74416.7661537379009.59954.60072拉萨LHAS5月19日5月20日.6091.6301.7849.7928.6215.6205上海SHAO5月19日5月20日.5709.6028.6778.7510.5497.5852乌鲁木齐URUM5月19日5月20日.6320.5947.7537.7207.5926.5535武汉WUHN5月19日5月20日.5622.6143.6867.7497.5586.5947平均值-9760443.5999950694999.7442037379009.58879据上述10组解及其平均值可求得各组解的中误差如下：平均值的中误差为： 表2中给出的是由上述5个GPS卫星跟踪站求得的LH13在WGS-GPS椭球上的（B、L、H）坐标。表2由5个GPS卫星跟踪站求得的LH13的起算坐标（B、L、H）GPS卫星跟踪站名时间纬度B经度L高程（大地高）北京BJFS5月19日5月20日36°05′′19″.6488481199″.6488642100°533′52″.6177314552″.61664232973.995822973.99313拉萨LHAS5月19日5月20日199″.6488154199″.6488402552″.6188067552″.6177302.99447.98558上海SHAO5月19日5月20日199″.6488110199″.6488669552″.6177314552″.6166612.93666.85228乌鲁木齐URUM5月19日5月20日199″.6477878199″.6488148552″.6177223552″.6188437.89226.94773武汉WUHN5月19日5月20日199″.6488341199″.6488765552″.6177772552″.6166204.94227.86337平均值36°05′′19″.6488359100°533′52″.61772672973.99306根据上述10组解及其平均值可求得各组解的中误差为：平均值的中误差为： 将用经纬度表示的中误差化算为用长度表示后可得： 上述精度大大优于技术设计中规定的精度指标±10cm，足以保证基线向量的解算精度。需要指出的是上述各GPS卫星跟踪站的坐标是属ITRF坐标系的，由国际GPS服务IGS给出的精密星历也是属ITRF坐标系的，因而求得的起始点LH13的坐标也应属于国际地球参考框架ITRF。但由于ITRF坐标系和WGS-84坐标系的差异很微小，在小范围的变形监测中通常不加区分。基准网的数据处理以LH13作为全网的起算点，用IGS的精密星历和Berness软件进行基线向量解算，并用武汉测绘科技大学编制的PowerADJ软件进行网平差，求得第一期GPS基准网测量的最终成果如下：表3 GPS基准网平差结果（WGS-84坐标系BLH）点名纬度经度大地高各分量精度度分秒度分秒米mmmmmm1LH0636626.803329100945.7711072949.229960.80.61.72LH0836608.578839100041.0433592926.228670.80.61.63LH1036614.183335100125.5466622854.880280.80.61.74LH1136547.044427100102.5399492937.668110.80.61.65LH1236548.501130100329.6200352859.662340.60.41.26LH1336519.648836100352.6177272973.993060.00.00.07LH1436540.059983100416.4766402816.990050.70.51.58LH1636533.582268100449.0155492855.224870.60.51.2表4 GPS基准网平差结果（WGS-84坐标系XYZ）点名X(米)Y(米)Z(米)各分量精度((mm)1LH06-9697443.0334550694446.2888237395668.333670.61.51.12LH08-9711660.2662750694993.2334937391000.711730.61.41.03LH10-9722223.9555450691226.8440637391998.244120.61.51.04LH11-9717663.9660250697885.2889537385770.888840.61.41.05LH12-9753661.8996050690003.1337037385661.200520.51.10.86LH13-9760443.5999950694999.7442037379009.588790.00.00.07LH14-9765335.8448450688998.1224737383225.700190.61.31.08LH16-9773663.6118750688889.9770537381886.899950.51.10.8从表3和表4中可以看出点位精度最差的点是LH06和LH10。其平面位置中误差为；其高程（大地高）中误差为。其三维点位中误差。满足技术设计中提出的要求：基准网中最弱点的平面位置中误差不超过±2mm；高程（大地高）中误差不超过±4mm。变形监测点的数据处理变形观测数据采用广播星历和随JAVAD接收机一并购买的数据处理软件Pinacle进行处理。根据基准点的坐标及求得的基线向量来计算变形监测点的坐标。由于从基准点至变形监测点间的距离一般都在3km以内，而进行技术设计时所做的试验结果表明此时定位精度和边长间并无显著关系，定位精度可能更多的取决于卫星的数量及其分布状况以及多路径效应的显著程度等因素，故从几个基准点上对同一变形监测点进行监测时，为简便起见我们将各组结果视为是同精度的，简单地取其平均值作为最后结果。8个滑坡体监测基线处理结果详见附录一。下面为各滑坡体上的变形监测点GPS测量结果。xx滑坡表5 变形监测点坐标结果（WGS-84坐标系X-Y-Z坐标）起点-终点边长(m)不同基准点算算得的坐标的精度((mm)变形监测点坐坐标相对于平均值值之差（mm）XYZX(米)Y(米)Z(米)△X△Y△ZLH16-LL0011234.880070.50.90.9-9769446.4554750680998.2554237390337.71181-0.2-1.23.2LH14-LL0011146.888450.51.00.9-9769446.4554250680998.2556637390337.711170.31.2-3.2平均值-9769446.4554550680998.2555437390337.71149LH16-LL0021302.559980.51.11.1-9768009.2774550681002.5559137390664.08838-2.82.1-1.3LH14-LL0021119.333090.61.41.0-9768009.2668950681002.5554937390664.088642.8-2.11.3平均值-9768009.2771750681002.5557037390664.08851LH16-LLX011327.441680.71.61.9-9767776.0669550680881.8009437390660.79969-2.91.51.3LH14-LLX011124.447310.61.11.5-9767776.0663750680881.8006437390660.799432.9-1.5-1.3平均值-9767776.0666650680881.8007937390660.79956LH16-LLX021258.007790.41.01.0-9767666.1335250681446.7334737390007.49932-4.70.0-1.6LH14-LLX021040.441250.41.01.0-9767666.1225750681446.7334737390007.499644.80.01.6平均值-9767666.1330550681446.7334737390007.49948LH16-LLX161223.116170.61.60.8-9768661.0226550681558.8992637390228.95510-1.7-6.0-7.8LH14-LLX161070.887150.71.91.1-9768661.0223050681558.9004737390228.966651.86.07.7平均值-9768661.0224850681558.8998737390228.95588LH16-LLX171397.007760.61.41.2-9768663.7009850680003.1666737391443.71151-1.93.75.3LH14-LLX171256.001830.71.81.2-9768663.7006150680003.1559337391443.700441.8-3.7-5.3平均值-9768663.7008050680003.1663037391443.70098据上述相对于平均值之差可求得xx滑坡各变形监测点的坐标平均值的中误差为三维点位中误差为 表6 变形监测点坐标结果（WGS-84坐标系B-L-H坐标）起点-终点变形监测点坐坐标不同基准点算得的坐标的精度(mmm)投影后的平面面坐标(m)相对于平均值之差（mm）纬度B（度分秒）经度L（度分秒）大地高H(m)BLHNEH△N△E△HLH14-LL00136612.2399361005438.6366102664.556520.60.51.239967662.577175369811.760062555.66284-3.3-0.5-1.0LH16-LL00136612.2399571005438.6366142664.556720.60.51.139967662.577835369811.761152555.663043.30.41.0平均值36612.2399471005438.6366122664.5566239967662.577505369811.761112555.66294LH14-LL00236613.3455951005433.2200332662.553830.60.51.739967996.100585368466.164412553.660152.6-2.3-1.4LH16-LL00236613.3455781005433.2200522662.554100.60.51.539967996.100065368466.168882553.66042-2.62.31.4平均值36613.3455871005433.2200432662.5539739967996.100325368466.166652553.66029LH14-LLX0136613.7699111005432.0744252639.006041.00.51.639968009.022695368177.444482530.112360.0-2.5-2.3LH16-LLX0136613.7699101005432.0744452639.006521.20.72.139968009.022685368177.449992530.112830.02.52.4平均值36613.7699111005432.0744352639.0062839968009.022695368177.447742530.11260LH14-LLX0236611.1900201005431.1933232657.664650.80.41.239967229.455205367955.743392548.770971.8-4.70.3LH16-LLX0236611.1900081005431.1933602657.664600.80.51.239967229.444845367955.753322548.77092-1.84.7-0.3平均值36611.1900141005431.1933422657.6646339967229.455025367955.748862548.77095LH14-LLX1636611.1811221005434.8255012694.446320.90.52.039967229.555745368866.579932585.552643.0-2.99.1LH16-LLX1636611.1811021005434.8255242694.444500.70.41.739967229.555155368866.585512585.55082-2.92.9-9.1平均值36611.1811121005434.8255132694.4454139967229.555455368866.582222585.55173LH14-LLX1736617.1000311005436.1088302638.992290.90.81.939969112.122025369177.906622529.99860-2.0-1.2-6.4LH16-LLX1736617.1000441005436.1088382638.993570.80.71.639969112.122415369177.908852529.999881.91.26.4平均值36617.1000381005436.1088342638.9929339969112.122225369177.907742529.99924三维点位中误差为 xx滑坡表7 变形监测点坐标结果（WGS-84坐标系X-Y-Z坐标）起点-终点边长(m)不同基准点算算得的坐标的精度((mm)变形监测点坐坐标相对于平均值值之差（mm）XYZX(米)Y(米)Z(米)△X△Y△ZLH14-LL004397.977520.41.10.9-9764995.5114950685557.4449637385227.433932.1-3.1-2.0LH16-LL004990.011660.51.31.2-9764995.5119150685557.4555937385227.44434-2.13.22.0平均值-9764995.5117050685557.4552837385227.44414LH14-LL005589.288600.51.20.8-9764887.6881050684113.4002837386557.333802.8-2.61.1LH16-LL0051102.557850.51.21.0-9764887.6886650684113.4007937386557.33358-2.82.6-1.1平均值-9764887.6883850684113.4005437386557.33369LH14-LLX03502.188680.81.90.9-9764990.9114350684774.8337137385992.16605-0.50.54.7LH16-LLX031047.994090.51.20.7-9764990.9113350684774.8336237385992.155120.5-0.4-4.7平均值-9764990.9113850684774.8336737385992.15559LH14-LLX04237.633820.40.80.8-9764779.4335150686997.7002037384440.244530.21.4-3.5LH16-LLX04939.644650.41.00.9-9764779.4335650686997.6999337384440.25523-0.3-1.33.5平均值-9764779.4335450686997.7000737384440.24488据上述相对于平均值之差可求得xx滑坡各变形监测点的坐标平均值的中误差为三维点位中误差为 表8 变形监测点坐标结果（WGS-84坐标系B-L-H坐标）起点-终点变形监测点坐坐标不同基准点算得的坐标的精度(mmm)投影后的平面面坐标(m)相对于平均值之差（mm）纬度B（度分秒）经度L（度分秒）大地高H(m)BLHNEH△N△E△HLH14-LL00436551.8833351005417.4699072659.228190.70.51.339961332.977625364544.967722550.334540.3-1.5-4.1LH16-LL00436551.8833331005417.4699192659.229010.80.51.539961332.977555364544.970022550.33535-0.31.54.1平均值36551.8833341005417.4699132659.2286039961332.977595364544.968872550.33495LH14-LL00536558.0188161005418.2500642620.332900.50.41.439963222.133335364733.728862511.339232.7-2.3-1.9LH16-LL00536558.0177991005418.2500822620.333260.60.51.539963222.122805364733.733332511.33960-2.62.31.9平均值36558.0188081005418.2500732620.3330839963222.133075364733.731102511.33942LH14-LLX0336555.1455921005417.9133082631.116430.80.62.039962333.577515364655.654422522.222773.40.43.2LH16-LLX0336555.1455691005417.9133042631.115800.60.41.339962333.566825364655.653332522.22214-3.5-0.5-3.2平均值36555.1455811005417.9133062631.1161239962333.577175364655.653382522.22246LH14-LLX0436547.0255291005415.7777922716.773360.60.51.039959883.077415364133.289952607.77971-3.6-0.5-1.0LH16-LLX0436547.0255521005415.7777962716.773570.50.51.239959883.088135364133.290052607.779923.60.51.1平均值36547.0255411005415.7777942716.7734739959883.077775364133.290002607.77982三维点位中误差为 xx滑坡表9 变形监测点坐标结果（WGS-84坐标系X-Y-Z坐标）起点-终点边长(m)不同基准点算算得的坐标的精度((mm)变形监测点坐坐标相对于平均值值之差（mm）XYZX(米)Y(米)Z(米)△X△Y△ZLH12-LL006706.799080.50.90.8-9760550.1110350688448.8776337385115.188460.2-0.96.0LH14-LL006523.700350.40.80.8-9760550.1110750688448.8778237385115.17725-0.21.0-6.0平均值-9760550.1110550688448.8777337385115.17786LH12-LL007738.722970.51.21.1-9760668.6779350687889.5339337385337.64463-2.35.74.1LH14-LL007524.366770.51.00.9-9760668.6774650687889.5227937385337.633802.3-5.7-4.1平均值-9760668.6777050687889.5333637385337.64422LH12-LL011692.788220.40.81.0-9758881.1997950685551.3222537386339.54404-1.6-4.1-1.2LH14-LL011804.577060.51.01.2-9758881.1994650685551.3330737386339.544281.64.11.2平均值-9758881.1996350685551.3226637386339.54416LH12-LL014682.422720.40.80.8-9757553.7442150684663.7662137387006.93386-2.6-0.10.3LH14-LL014972.477630.40.90.9-9757553.7336950684663.7662337387006.933792.60.1-0.3平均值-9757553.7339550684663.7662237387006.93383LH12-LLX06751.611770.50.90.9-9760994.2441550688552.0444237384885.244330.550.36.75LH14-LLX06471.799260.40.90.8-9760994.2442650688552.0443637384885.22298-0.55-0.3-6.75平均值-9760994.2442150688552.0443937384885.23366LH12-LLX08683.399750.41.00.7-9759992.5665650687441.5442237385990.46655-1.7-0.20.65LH14-LLX08624.322110.51.20.9-9759992.5662250687441.5442637385990.466421.70.2-0.65平均值-9759992.5663950687441.5442437385990.46649LH12-LL008825.600410.41.30.8-9761554.2224350687777.9668837385005.199441.1-0.55-3.1LH14-LL008438.511140.72.31.1-9761554.2226550687777.9669937385005.20006-1.10.553.1平均值-9761554.2225450687777.9669437385005.19975LH12-LL010798.044230.51.00.9-9760771.5555050686448.2226037386446.60093-2.15-0.15-0.7LH14-LL010617.255520.51.00.7-9760771.5550750686448.2226337386446.611072.150.150.7平均值-9760771.5552950686448.2226237386446.61100LH12-LL013983.588800.40.91.1-9761667.9003750684448.6000337386662.62243-2.70.30.95LH14-LL013671.544700.40.71.0-9761667.8998350684448.5999737386662.622242.7-0.3-0.95平均值-9761667.9001050684448.6000037386662.62234LH12-LLX05805.700170.31.00.9-9761115.4332750687117.9997737385555.444430.45-2.51.7LH14-LLX05511.833250.61.51.4-9761115.4333650687118.0002737385555.44409-0.452.5-1.7平均值-9761115.4333250687118.0000237385555.44426LH12-LLX07711.044170.41.01.0-9760447.8445050688118.5552637385229.85556-2.458.27.15LH14-LLX07534.933860.71.41.4-9760447.8440150688118.5336237385229.844132.45-8.2-7.15平均值-9760447.8442650688118.5444437385229.84485LH12-LLX09696.222200.61.00.9-9759888.3000550687005.8997237386224.388010.2-5.25-1.65LH14-LLX09652.666090.40.90.9-9759888.3000950687005.9007737386224.38834-0.25.251.65平均值-9759888.3000750687005.9002537386224.38818据上述相对于平均值之差可求得xx滑坡各变形监测点的坐标平均值的中误差为三维点位中误差为表10 变形监测点坐标结果（WGS-84坐标系B-L-H坐标）起点-终点变形监测点坐坐标不同基准点算得的坐标的精度(mmm)投影后的平面面坐标(m)相对于平均值之差（mm）纬度B（度分秒）经度L（度分秒）大地高H(m)BLHNEH△N△E△HLH12-LL00636547.7044161005357.7899742815.222270.50.41.139960002.133775359633.264412706.228625.50.02.8LH14-LL00636547.7033801005357.7899742815.221710.60.51.039960002.122675359633.264412706.22806-5.50.0-2.8平均值36547.7033981005357.7899742815.2219939960002.133225359633.264412706.22834LH12-LL00736549.3388901005358.9666682784.221250.70.61.439960552.644145359922.495582675.22759-0.11.27.4LH14-LL00736549.3388911005358.9666592784.119780.60.51.239960552.644175359922.493342675.226120.2-1.2-7.3平均值36549.3388911005358.9666642784.2205239960552.644165359922.494462675.22686LH12-LL01136557.1555681005353.4099912626.559320.70.41.139962992.988555358522.518862517.665661.22.4-3.7LH14-LL01136557.1555611005353.4099722626.660070.90.51.339962992.988315358522.513382517.66640-1.2-2.43.7平均值36557.1555651005353.4099822626.5597039962992.988435358522.516622517.66603LH12-LL0143661.0251111005349.0699942577.336210.60.41.039964111.799805357433.479982468.442540.02.60.5LH14-LL0143661.0251111005349.0699732577.336100.70.41.139964111.799795357433.474462468.442430.0-2.6-0.6平均值3661.0251111005349.0699842577.3361639964111.799805357433.477722468.44249LH12-LLX0636546.7000711005359.4977412806.883920.60.51.239959771.388695360066.105522697.990275.3-0.64.2LH14-LLX0636546.7000371005359.4977462806.883090.60.51.139959771.377625360066.106642697.88944-5.40.6-4.1平均值36546.7000541005359.4977442806.8835139959771.388165360066.105582697.88986LH12-LLX0836551.8988441005356.3422752765.661960.50.41.239961331.255725359266.540022656.668300.51.70.5LH14-LLX0836551.8988411005356.3422622765.661860.50.41.439961331.255635359266.536682656.66821-0.4-1.7-0.5平均值36551.8988431005356.3422692765.6619139961331.255685359266.538852656.66826LH12-LL00836548.396654100542.4107732768.998370.70.41.339960223.955235360788.761102660.00472-2.1-0.9-2.4LH14-LL00836548.396667100542.4108812768.998861.20.82.239960223.955645360788.762282660.005202.00.92.4平均值36548.396661100542.4107772768.9986239960223.955445360788.761192660.00496LH12-LL01036554.835503100540.1472292736.772610.60.41.339962222.155445360211.329952627.77895-0.72.1-0.1LH14-LL01036554.835508100540.1471132736.772640.50.41.239962222.155585360211.325532627.778980.7-2.10.2平均值36554.835506100540.1472212736.7726339962222.155515360211.327742627.77897LH12-LL01336558.652204100545.4365552602.449700.90.41.139963440.344035361533.140062493.556030.32.71.2LH14-LL01336558.652202100545.4363342602.449450.80.31.039963440.333965361533.135532493.55579-0.3-2.7-1.2平均值36558.652203100545.4364452602.4495839963440.344005361533.138802493.55591LH12-LLX0536550.978859100541.3417792745.007790.80.41.239961003.422125360511.695592636.114132.90.0-1.1LH14-LLX0536550.978840100541.3417782745.008001.20.51.639961003.411555360511.695592636.11434-2.80.01.0平均值36550.978850100541.3417792745.0079039961003.411845360511.695592636.11424LH12-LLX0736548.6655691005357.9299972799.445980.70.51.239960331.788655359666.649992690.552320.80.911.1LH14-LLX0736548.6655641005357.9299902799.443760.90.81.739960331.788505359666.648812690.55010-0.7-0.9-11.1平均值36548.6655671005357.9299942799.4448739960331.788585359666.649902690.55121LH12-LLX0936553.4711301005356.4444712756.666740.70.51.239961779.744355359288.891152647.773081.70.8-5.2LH14-LLX0936553.4711191005356.4444652756.667770.50.31.239961779.744015359288.890002647.77411-1.7-0.85.1平均值36553.4711251005356.4444682756.6672639961779.744185359288.890082647.77360三维点位中误误差为xx滑坡表11 变变形监测点点坐标结果果（WGSS-84坐坐标系X--Y-Z坐坐标）起点-终点边长(m)不同基准点算算得的坐标的精度((mm)变形监测点坐坐标相对于平均值值之差（mm）XYZX(米)Y(米)Z(米)△X△Y△ZLH12-LL016349.811390.50.91.0-9753994.6333850686668.2999837386557.02284-0.31.72.1LH13-LL0161292.771830.71.41.5-9753994.6333150686668.2996537386557.022430.3-1.6-2.0平均值-9753994.6333550686668.2998237386557.02264LH12-LL017541.466100.41.10.9-9753775.8885450684995.8554237387550.011320.03.33.5LH13-LL0171469.667670.61.61.3-9753775.8885350684995.8447737387550.000630.0-3.3-3.5平均值-9753775.8885450684995.8551037387550.00098据上述相对于于平均值之之差可求得得xx滑坡各各变形监测测点的坐标标平均值的的中误差为为三维点位中误误差为表12 变变形监测点点坐标结果果（WGSS-84坐坐标系B--L-H坐坐标）起点-终点变形监测点坐坐标不同基准点算得的坐标的精度(mmm)投影后的平面面坐标(m)相对于平均值之差（mm）纬度B（度分秒）经度L（度分秒）大地高H(m)BLHNEH△N△E△HLH12-LL01636557.1766371005333.4333252655.440010.70.51.239962991.599155353522.856662546.446350.60.12.6LH13-LL01636557.1766331005333.4333252655.339491.00.81.839962991.599025353522.856652546.44583-0.7-0.1-2.6平均值36557.1766351005333.4333252655.3397539962991.599095353522.856662546.44609LH12-LL0173662.9163321005333.9999772570.449990.80.31.239964668.555465353666.311182461.556320.9-0.54.7LH13-LL0173662.9162261005333.9999812570.449071.20.51.739964668.555285353666.312292461.55539-0.90.5-4.6平均值3662.9162291005333.9999792570.4495339964668.555375353666.312242461.55586三维点位中误误差为xx滑坡表13 变变形监测点点坐标结果果（WGSS-84坐坐标系X--Y-Z坐坐标）起点-终点边长(m)不同基准点算算得的坐标的精度((mm)变形监测点坐坐标相对于平均值值之差（mm）XYZX(米)Y(米)Z(米)△X△Y△ZLH12-LL018590.166080.30.90.9-9749226.1660850686662.3006537387666.77756-2.12.5-2.3LH13-LL0181638.552520.41.41.3-9749226.1556650686662.3001537387666.788022.1-2.52.3平均值-9749226.1558750686662.3004037387666.77779LH12-LL020717.844820.81.61.5-9747441.6223950687444.9223137388113.97781-1.2-4.0-1.0LH13-LL0201755.779411.11.81.9-9747441.6221450687444.9331137388113.988011.24.01.0平均值-9747441.6222750687444.9227137388113.97791LH12-LL021798.900191.73.24.9-9747004.9882750686552.0334737388550.05585-0.11.4-1.8LH13-LL0211842.555271.52.84.2-9747004.9882550686552.0331937388550.066210.1-1.41.8平均值-9747004.9882650686552.0333337388550.06603LH12-LL024903.777651.34.22.0-9745663.5223450687444.3008537388996.49974-1.40.5-3.3LH13-LL0241932.669751.54.82.2-9745663.5220550687444.3007537388996.500401.4-0.53.3平均值-9745663.5222050687444.3008037388996.50007LH12-LLX10872.333510.71.62.6-9746009.1990450687110.1551937388990.69935-1.23.4-2.2LH13-LLX101908.881580.92.23.1-9746009.1887950687110.1445137388990.699791.2-3.42.2平均值-9746009.1889250687110.1448537388990.69957LH12-LLX11912.566420.31.00.9-9745772.4668850687003.7770437389007.55545-2.10.3-1.4LH13-LLX111947.775620.62.01.6-9745772.4664550687003.7669837389007.555742.1-0.31.5平均值-9745772.4666750687003.7770137389007.55560LH12-LLX12871.055521.13.11.7-9745996.5112950687551.6775437388992.400440.61.2-0.1LH13-LLX121902.552292.35.03.2-9745996.5114150687551.6773037388992.40047-0.6-1.20.2平均值-9745996.5113550687551.6774237388992.40046LH12-LLX13466.000120.72.31.1-9749222.5335450689222.9553137386994.200863.38.43.5LH13-LLX131484.995602.35.32.9-9749222.5442050689222.9336437386994.20016-3.3-8.3-3.5平均值-9749222.5338750689222.9444837386994.20051LH12-LLX14298.288160.61.91.2-9750669.3770050689883.8888437386116.25501-2.32.02.9LH13-LLX141309.442941.33.81.4-9750669.3665350689883.8884537386116.244442.3-2.0-2.8平均值-9750669.3667750689883.8886537386116.24473LH12-LLX15140.822970.71.11.2-9752221.9551350690000.1550337385776.68826-0.7-2.4-0.4LH13-LLX151170.334710.71.31.3-9752221.9449950690000.1555137385776.688350.72.40.5平均值-9752221.9550650690000.1552737385776.68831据上述相对于于平均值之之差可求得得xx滑坡各各变形监测测点的坐标标平均值的的中误差为为三维点位中误误差为表14 变变形监测点点坐标结果果（WGSS-84坐坐标系B--L-H坐坐标）起点-终点变形监测点坐坐标不同基准点算得的坐标的精度(mmm)投影后的平面面坐标(m)相对于平均值之差（mm）纬度B（度分秒）经度L（度分秒）大地高H(m)BLHNEH△N△E△HLH12-LL0183661.8557741005315.0944862643.779480.60.31.139964333.977055348933.599902534.88581-3.61.71.0LH13-LL0183661.8559981005315.0944732643.779300.90.51.739964333.977765348933.595572534.885623.6-1.6-0.9平均值3661.8558861005315.0944802643.7793939964333.977415348933.597742534.88572LH12-LL0203662.208332100537.2296692708.999831.00.82.039964444.055535346966.834412600.006161.42.0-3.5LH13-LL0203662.208224100537.2295532709.000541.31.12.239964444.055265346966.830012600.00687-1.4-2.03.5平均值3662.208228100537.2296612709.0001939964444.055405346966.832212600.00652LH12-LL0213665.028995100536.4927772650.996493.01.94.939965330.911425346788.058812542.00282-2.3-0.20.1LH13-LL0213665.029110100536.4927782650.996482.61.74.239965330.911885346788.058852542.002812.30.2-0.1平均值3665.029003100536.4927782650.9964939965330.911655346788.058832542.00282LH12-LL0243665.024770100530.2452212729.995922.01.64.139965330.166595345211.798822621.00225-3.11.3-1.4LH13-LL0243665.024990100530.2451112729.996192.41.74.639965330.177215345211.795552621.002523.1-1.41.4平均值3665.024880100530.2451162729.9960639965330.166905345211.796692621.00239LH12-LLX103665.348880100532.2950042706.440521.70.92.539965440.355685345733.028802597.44684-3.80.61.6LH13-LLX103665.349005100532.2950002706.440191.91.13.239965440.366455345733.026682597.446523.8-0.6-1.6平均值3665.348993100532.2950022706.4403639965440.366075345733.027742597.44668LH12-LLX113666.042884100530.9021132705.667440.70.31.239965661.600975345388.104492596.77377-1.62.1-0.2LH13-LLX113666.042994100530.9019962705.667501.20.62.239965661.611285345388.100072596.773821.5-2.10.3平均值3666.042889100530.9020052705.6674739965661.611135345388.102282596.77380LH12-LLX123664.660220100531.4842222738.442561.20.83.439965119.055405345522.832202629.44888-0.8-0.80.7LH13-LLX123664.660224100531.4842292738.442412.41.75.739965119.055555345522.833372629.448740.70.8-0.7平均值3664.660222100531.4842262738.4424939965119.055485345522.832292629.44881LH12-LLX1336555.0766691005312.9855332807.229600.90.52.539962224.822935348411.667732698.33594-1.6-4.88.2LH13-LLX1336555.0766801005312.9855722807.227972.51.75.739962224.833265348411.676692698.334311.64.8-8.1平均值36555.0766751005312.9855532807.2287939962224.833105348411.672212698.33513LH12-LLX1436551.3600711005318.2877212832.112521.00.81.939961110.833085349744.737702723.118860.91.93.5LH13-LLX1436551.3600651005318.2877052832.111801.81.73.439961110.822895349744.733312723.11815-1.0-2.0-3.5平均值36551.3600681005318.2877132832.1121639961110.822995349744.735512723.11851LH12-LLX1536549.4688081005324.1511642845.000740.90.71.439960553.088685351211.656602736.007091.01.1-2.1LH13-LLX1536549.4688011005324.1511542845.001160.90.81.639960553.088485351211.653372736.00751-1.0-1.22.1平均值36549.4688051005324.1511592845.0009539960553.088585351211.654492736.00730三维点位中误误差为xx滑坡表15 变变形监测点点坐标结果果（WGSS-84坐坐标系X--Y-Z坐坐标）起点-终点边长(m)不同基准点算算得的坐标的精度((mm)变形监测点坐坐标相对于平均值值之差（mm）XYZX(米)Y(米)Z(米)△X△Y△ZLH08-LL0371607.005511.02.22.7-9725770.8554750687338.2446237392551.877450.51.1-0.4LH10-LL037523.666610.61.21.5-9725770.8555950687338.2440637392551.87725-0.7-4.5-2.4LH11-LL0371486.998370.92.02.4-9725770.8555050687338.2448637392551.877770.23.52.8平均值-9725770.8555250687338.2445137392551.87749LH08-LL0351668.117011.01.92.6-9725552.9770750686116.0442837393772.177630.41.3-0.6LH10-LL035632.000120.61.11.6-9725552.9771550686116.0336137393772.17741-0.4-5.4-2.8LH11-LL0351622.226340.91.82.4-9725552.9771150686116.0445537393772.188030.04.03.4平均值-9725552.9771150686116.0441537393772.17769LH08-LL0331484.223060.92.82.0-9724333.7770850687772.9004237393550.19994-1.06.24.1LH10-LL033438.622640.72.11.4-9724333.7668150687772.8887037393550.199081.7-11.0-4.5LH11-LL0331442.552970.82.51.8-9724333.7770550687772.9002937393550.19956-0.74.90.3平均值-9724333.7669850687772.8998037393550.19953LH08-LL0361395.884780.82.71.7-9724001.2882650688883.5884137392991.99933-0.54.82.5LH10-LL036315.300030.92.81.5-9724001.2880150688883.5666737392991.988602.0-12.6-4.8LH11-LL0361318.880250.72.31.5-9724001.2883550688883.5887237392991.99931-1.47.92.3平均值-9724001.2882150688883.5779337392991.99908LH08-LL0321373.998660.71.91.2-9723664.5116350688772.3990437393229.111261.2-1.14.2LH10-LL032318.799160.61.60.7-9723664.5118750688772.3990037393229.10034-1.2-1.5-5.0LH11-LL0321330.001720.82.21.4-9723664.5117450688772.3994037393229.100920.12.50.8平均值-9723664.5117550688772.3991537393229.10084LH08-LL0311281.559850.82.11.2-9722991.9446050689229.8226437393111.333151.52.64.4LH10-LL031237.122650.41.20.6-9722991.9449250689229.8115137393111.31198-1.7-8.7-7.3LH11-LL0311248.553330.82.21.3-9722991.9447450689229.8330037393111.333010.16.23.0平均值-9722991.9447550689229.8223837393111.32271据上述相对于于平均值之之差可求得得xx滑坡各各变形监测测点的坐标标平均值的的中误差为为三维点位中误误差为 表16 变变形监测点点坐标结果果（WGSS-84坐坐标系B--L-H坐坐标）起点-终点变形监测点坐坐标不同基准点算得的坐标的精度(mmm)投影后的平面面坐标(m)相对于平均值之差（mm）纬度B（度分秒）经度L（度分秒）大地高H(m)BLHNEH△N△E△HLH08-LL03136620.5999151005129.6988142775.446421.20.72.239970001.533565322555.315562666.552732.2-2.04.4LH10-LL03136620.5999051005129.6988352775.444900.60.41.239970001.533245322555.320092666.55120-1.03.3-10.9LH11-LL03136620.5999041005129.6988172775.446651.30.82.339970001.533235322555.316632666.55295-1.1-1.36.6平均值36620.5999051005129.6988262775.4457839970001.533345322555.317762666.55229LH08-LL03236621.8811731005132.9788802751.441441.20.71.939970441.366765323377.219912642.447754.2-1.01.4LH10-LL03236621.8811491005132.9788902751.440910.80.61.639970441.366015323377.221162642.44722-3.31.5-3.9LH11-LL03236621.8811571005132.9788822751.441551.40.82.239970441.366265323377.219952642.44785-0.8-0.62.4平均值36621.8811531005132.9788862751.4412339970441.366145323377.220062642.44754LH08-LL03336624.0522061005136.4466002695.444441.51.03.139971008.577815324233.685582586.55074-0.3-0.27.5LH10-LL03336624.0522171005136.4466022695.442531.00.72.339971008.588145324233.686642586.448833.00.4-11.6LH11-LL03336624.0511991005136.4466002695.444111.20.82.839971008.577585324233.685582586.55041-2.6-0.24.2平均值36624.0522081005136.4466012695.4433239971008.577865324233.686612586.44962LH08-LL03536627.1422731005142.3055722602.008051.60.92.839972004.377695325699.881172493.11435-1.2-0.60.7LH10-LL03536627.1422791005142.3055802602.007401.00.51.739972004.377895325699.883372493.113700.81.4-5.8LH11-LL03536627.1422781005142.3055712602.008501.50.82.639972004.377855325699.881162493.114800.4-0.75.2平均值36627.1422791005142.3055762602.0079539972004.377875325699.882272493.11425LH08-LL03636620.5666721005134.3377