GPS技术在某水库大坝变形监测中的应用

GPS,(,830000):本文介绍了GPS技术在某水库大坝变形监测中的设计和应用在新疆首次把GPS监测网时间序列应用于大型平原水库变形监测中,达到了高效率高精度的设计目标;GPS全面网代替经典小角度和视准线等其他常规变形监测手段监测形变点水平位移,并获取高精度水平位移值,大大减少工作量工作时间和技术力量的投入,节省了开支并提高了工作效率,为及时监测水库的运行状况提供技术支撑:变形监测;水平位移;时间序列;GPS监测网1,,(),(2),17676km50000m,2425km2,50300m,28m,247108m3,281108m3,2005750300m,,221大坝变形监测设计和布置,56,210,200m1,4;300m1,322GPS监测网的设计(4)(13)(210),,,,,,230mm,GPS,,,,,,3mm,23实测前准备工作,CGPS,GPSB001B002,32XINJIANGWATERRESOURCES2011年第5期B001,B001B002,,1954,5+1PPm8~12GPSGPS,,GPS(BT1814-2001)3GPS31B级GPS网数据处理及平差解算BGPS(MIT)GAMITGLOBK1006(24h),ITRF2000,IGS(SP3),InternetIGS10IGSGPS(H)LCHELP,(RELAX)DH,,,GLOBK,IGS,,,B001,B001B002,,0001mITRFB11B项目B001-B002B001-B003B001-B004B002-B003B002-B004B003-B004边长相对精度1135万1220万1117万1845万1704万11296万点位中误差(mm)B001B002B003B0040000000000010200008032C级GPS网数据处理及平差解算CRINEX,SouthGPSProcessorV40HDS2003,,C,0001mCGPS22CGPS单位:mm点号dx允许dy允许中误差C001040903000435030005970C002051103000523030007310C003054703000584030008000C004126703001146030017090C005047303000484030006770C006047503000481030006770C007064603000579030008670C008117703001008030015490C009056003000519030007640C010074003000675030010020C011055103000580030008000C012054403000565030007840C01305590300059503000816033D级GPS网数据处理及平差解算GPS,GPSRINEX,,,SouthGPSProcessorV40HDS2003,,5%WGS-84WGS-84,33倪志华,王庆勇:GPS技术在某水库大坝变形监测中的应用,,WGS-84,,0001mDGPS33DGPS单位:mm项目Dxdy中误差0W11W22W30W11W22W30W11W22W42点数159292417029241433435比例75%1367%113%75%1367%113%67%165%165%4,,1,2~41km:480~483m,;483m~487m,;487m~497m,1,Z213(3+801),+106mm()34倪志华,王庆勇:GPS技术在某水库大坝变形监测中的应用,,,,,,,,,5GPS,,,,GPS,,GPS,,35倪志华,王庆勇:GPS技术在某水库大坝变形监测中的应用