上海国土资源Issue(4)：137-141,5.DOI:10.3969/j.issn.2095-1329.2014.04.033
天津滨海新区沉降灾害预测与检验
Forecast and inspection of land subsidence disaster in Binhai new area of Tianjin
摘要
Abstract
We had iftting calculated for the benchmark point by using the standard reiteration data since 1983 and real time kinematic (RTK) ground elevation data of 2005. It get the subsidence rate of the standard point and subsidence from 2005 to 2010 to iftting predicted RTK ground elevation of 2010. We also estimated the trend in the decreasing elevation of the land surface in the Binhai new area caused by land subsidence. And get the fold prediction of low altitude area in 2010. To verify the validity and reliability of the predictions made in 2010, we used the RTK method to measure the low-elevation area. A comparison of the forecasts with the measured low-elevation area shows that, relative to the measured area, the prediction error is less than 1.46% using the RTK method, and the difference between the leveling points iftting error and measured iftting error was 1.45%. This shows that the prediction error is mainly caused by measurement and calculation errors, and the choice of prediction model is essential y correct; therefore, the prediction method is effective, and the results from the low-elevation prediction area are reliable.关键词
地面沉降/地质灾害/水准测量/RTK测量/低海拔/预测检验Key words
land subsidence/geological hazard/leveling measurement/real time kinametic (RTK)/low altitude/forecast and inspection分类
天文与地球科学引用本文复制引用
纪静,郑智江,陈阜超..天津滨海新区沉降灾害预测与检验[J].上海国土资源,2014,(4):137-141,5.基金项目
国家地震科技星火计划(XH13037Y) （XH13037Y）
天津市地面沉降监测研究科研项目 （）
