地面沉降地区重复重力测量资料使用探讨  

STUDY ON APPLICATION OF MOBILE GRAVITY DATA IN GROUND SUBSIDENCE AREA

作　　者：董运洪[1] 杜雪松[1] 韩月萍[1] 刘峡[1] 塔拉[1] 陈阜超[1] 

机构地区：[1]中国地震局第一监测中心,天津300180

出　　处：《大地测量与地球动力学》2013年第6期16-19,23,共5页Journal of Geodesy and Geodynamics

基　　金：中国地震局地震研究所所长基金(IS201166001);中国地震局地震科技星火计划(XH12069)

摘　　要：用首都圈2001、2005和2009年的精密水准测量资料,计算出该区域2001—2009年因地面沉降引起的重力点高程变化量,通过此高程变化量,利用重力布格改正公式计算出该网2001—2009年重力点位因地面沉降产生的重力变化值。计算结果表明:使用精密水准资料,可以准确计算重力测量点因地面沉降产生的重力变化。Based on the data of precise leveling survey in 2001,2005 and 2009 around the Capital Circle area, the elevation variation induced by subsidence at the mobile gravity measuring points were calculated for the data from 2001 to 2009 in this area. With Bonguer correction formula of high precision, the gravity variation induced by subsidence at the mobile gravity measuring points from 2001--2009 in Capital Circle area were obtained from the varied elevations at the points. The results show that, the gravity variation induced by subcidence at the mobile gravity measuring points can be calculated accurately with precise leveling data.

关 键 词：地面沉降 重复重力测量 水准测量 布格改正 高程变化量 

分 类 号：P315.726[天文地球—地震学] P315.725[天文地球—固体地球物理学]