东南大学学报(自然科学版)
東南大學學報(自然科學版)
동남대학학보(자연과학판)
JOURNAL OF SOUTHEAST UNIVERSITY
2013年
z2期
275-278
,共4页
杜伟吉%钟金宁%秦姗兰%崔笃信
杜偉吉%鐘金寧%秦姍蘭%崔篤信
두위길%종금저%진산란%최독신
GPS%跨断层精密水准测量%垂直形变%地震网络剖面
GPS%跨斷層精密水準測量%垂直形變%地震網絡剖麵
GPS%과단층정밀수준측량%수직형변%지진망락부면
GPS ( global positioning system )%cross-fault precise leveling%vertical deformation%seismic network profiles
为分析和验证利用GPS技术进行跨断层垂直形变监测的可行性,利用GAMIT/GLOBK软件结合国内及周边的IGS站对地震网络剖面在包头跨断层观测场地2006,2009和2011年的GPS观测数据进行统一解算,得到各监测点在ITRF2008框架下的变形量,并与同期采用精密水准观测方法获取的变形量进行比较分析.结果显示, GPS监测方法与精密水准监测方法得到的变形量的平均差值约为5.1 mm,GPS监测成果精度较高,从而验证了利用GPS技术进行跨断层垂直形变监测的可行性.这种结合IGS站进行解算获取监测点在ITRF2008框架下变形量的方法,不需要稳定的起算点,有助于跨断层垂直形变监测方案的改进、监测效率的提升和费用开支的节省.
為分析和驗證利用GPS技術進行跨斷層垂直形變鑑測的可行性,利用GAMIT/GLOBK軟件結閤國內及週邊的IGS站對地震網絡剖麵在包頭跨斷層觀測場地2006,2009和2011年的GPS觀測數據進行統一解算,得到各鑑測點在ITRF2008框架下的變形量,併與同期採用精密水準觀測方法穫取的變形量進行比較分析.結果顯示, GPS鑑測方法與精密水準鑑測方法得到的變形量的平均差值約為5.1 mm,GPS鑑測成果精度較高,從而驗證瞭利用GPS技術進行跨斷層垂直形變鑑測的可行性.這種結閤IGS站進行解算穫取鑑測點在ITRF2008框架下變形量的方法,不需要穩定的起算點,有助于跨斷層垂直形變鑑測方案的改進、鑑測效率的提升和費用開支的節省.
위분석화험증이용GPS기술진행과단층수직형변감측적가행성,이용GAMIT/GLOBK연건결합국내급주변적IGS참대지진망락부면재포두과단층관측장지2006,2009화2011년적GPS관측수거진행통일해산,득도각감측점재ITRF2008광가하적변형량,병여동기채용정밀수준관측방법획취적변형량진행비교분석.결과현시, GPS감측방법여정밀수준감측방법득도적변형량적평균차치약위5.1 mm,GPS감측성과정도교고,종이험증료이용GPS기술진행과단층수직형변감측적가행성.저충결합IGS참진행해산획취감측점재ITRF2008광가하변형량적방법,불수요은정적기산점,유조우과단층수직형변감측방안적개진、감측효솔적제승화비용개지적절성.
In order to analyze and validate the feasibility of using GPS( global positioning system) technology to monitor cross fault vertical deformation, the GAMIT/GLOBK software combined with domestic and around IGS( international globe navigation satellite system service) stations is used to u-nified solve the GPS data of the cross-sectional tomography observation zone of seismic network in Baotou in 2006 ,2009 and 2011 .The deformation of each monitoring point in ITRF2008 ( internation-al terrestrial reference frame 2008 ) is obtained and compared with the deformation by the precise lev-eling monitoring method.The results show that the average difference between the deformation by the GPS monitoring method and that by the precise leveling monitoring method is about 5.1 mm, and the accuracy of the former is higher, verifying the feasibility of the application of the GPS tech-nology in the cross-fault vertical deformation monitoring.The method of using IGS stations to solve the monitor points'deformation in ITRF2008 does not require a stable starting point.And it is help to improve the program of cross-fault vertical deformation monitoring, the monitoring efficiency and cost-saving.