三峡库区山区城镇重大地质灾害监测预警示范研究

以三峡库区羊角场镇为例，在地质调查基础上，利用伸缩位移计、应力计等常规地面监测设备，对地表裂缝相对位移和危岩体基座应力进行监测，并结合GPS静态和实时动态测量等技术，开展了角反射器干涉测量技术（CR-InSAR）和高相干InSAR技术在复杂山区地质灾害大范围调查与识别应用，从点到面、从大型危岩体到区域地表形变全覆盖。各种方法监测结果较为一致，有效实现了典型山区城镇地质灾害变形的高精度、动态立体化监测。 

GEOLOGICAL HAZARDS MONITORING AND APPLICATION IN MOUNTAINOUS TOWN OF THREE GORGES RESERVOIR

Regular geological hazards monitoring is very difficult in southwestern mountainous area, due to steep terrain, abundant plants, rainy and foggy weather. On the basis of geological hazards survey, a comprehensive monitoring network has been established. Regular geo-hazards monitoring devices, such as telescopic displacement meters and stressometers, are installed to monitor relative displacement of ground cracks and stress in base of perilous rock respectively. Static and real-time GPS, as well as corner reflector interferometry (CR-InSAR), are applied to monitor ground movement of perilous rocks. In order to obtain regional deformation, high coherence InSAR is adopted to investigate and detect geo-hazards. The Yangjiao monitoring network achieves high-resolution and real-time monitoring, and the methods applied are essentially in agreement with movement results.