本文關(guān)鍵詞：時序InSAR在城市地鐵工程區(qū)形變監(jiān)測中的應(yīng)用　出處：《測繪通報》2017年08期 　論文類型：期刊論文

  更多相關(guān)文章： 地表形變 時序InSAR 人工角反射器 精細(xì)監(jiān)測 地鐵建設(shè)

【摘要】：地鐵建設(shè)會引發(fā)城市地表形變?yōu)暮?而傳統(tǒng)的合成孔徑雷達(dá)差分干涉測量(D-InSAR)難以實現(xiàn)城市地鐵工程區(qū)域的精細(xì)測量。本文利用TerraSAR-X高分辨率數(shù)據(jù),采用PS-InSAR和SBAS-InSAR方法對徐州地鐵1號線東部工程場地進(jìn)行了形變監(jiān)測,獲取了該區(qū)域2016年6月15日—2016年9月11日期間的形變時序圖。通過與人工角反射器布設(shè)點的水準(zhǔn)測量數(shù)據(jù)對比分析,發(fā)現(xiàn)利用兩種時序InSAR測量方法得到的地表形變結(jié)果與水準(zhǔn)測量結(jié)果非常一致,形變誤差均在1 mm以內(nèi);而SBAS-InSAR探測地表形變的敏感性低于PS-InSAR。結(jié)果表明,利用高分辨率SAR影像監(jiān)測城市地鐵形變具有亞毫米級的測量精度和米級的定位能力,同時證明了時序InSAR分析技術(shù)在城市地鐵工程形變監(jiān)測應(yīng)用中的廣闊前景。
[Abstract]:Subway construction will cause urban surface deformation disasters. But the traditional differential interferometry of synthetic aperture radar (D-InSAR) is difficult to realize the fine measurement of urban subway engineering area. This paper uses TerraSAR-X high-resolution data. The deformation monitoring of the east engineering site of Xuzhou Metro Line 1 was carried out by using PS-InSAR and SBAS-InSAR methods. The deformation sequence diagram of the region from June 15th 2016 to September 11th 2016 is obtained and compared with the leveling data of the artificial angle reflector. It is found that the results of surface deformation obtained by using two time series InSAR methods are in good agreement with the leveling results, and the deformation errors are within 1 mm. However, the sensitivity of SBAS-InSAR in detecting surface deformation is lower than that of PS-InSAR. the results show that. Using high-resolution SAR images to monitor urban subway deformation has sub-millimeter accuracy and meter positioning ability. At the same time, it is proved that the application of time series InSAR analysis technology in urban subway engineering deformation monitoring has broad prospects.
【作者單位】： 中國礦業(yè)大學(xué)環(huán)境與測繪學(xué)院;
【基金】：江蘇省煤基CO2捕集與地質(zhì)儲存重點實驗室開放基金(2015A01)
【分類號】：P225.1;U231.1
【正文快照】： 我國正在大力發(fā)展城市地鐵工程,依據(jù)地鐵發(fā)展規(guī)劃,中國地鐵總里程將在2020年達(dá)到6000 km,城市地鐵工程的地下隧道、橋梁及地基工程將使應(yīng)力平衡狀態(tài)的地質(zhì)環(huán)境遭到破壞,導(dǎo)致工程建設(shè)區(qū)發(fā)生地表形變[1-2]。為防控地表形變造成影響和危害,亟須建立有效的城市地鐵建設(shè)工程區(qū)形變，

本文編號：1428565