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由于人类活动,地面沉降问题愈发严重,严重影响人类的正常生活。我国加大了对地面沉降的研究力度,采用不同的监测手段,主要有:水准测量方法、三角高程测量方法、GPS技术、数字摄影测量方法、In SAR方法、光纤监测技术。监测手段从单一化向多元化发展,成本低,精度、自动化程度、监测连续性、效益越高,受外界条件影响越小等。
As a result of human activities, the problem of land subsidence has become more and more serious, seriously affecting the normal life of mankind. China has stepped up research on land subsidence and adopted different monitoring methods. The main methods are leveling, triangulation, GPS, digital photogrammetry, InSAR and fiber monitoring technology. Monitoring means from a single to diversified development, low cost, accuracy, degree of automation, monitoring continuity, the higher the benefits, the less affected by external conditions and so on.