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汶川大地震导致受灾区平面和高程发生不同程度的位移和升降,特别是在重灾区,平面和高程控制网遭到毁灭性破坏。为满足灾后恢复重建工作对测绘基准的迫切需求,四川测绘局建立了灾后应急测绘保障系统。以汶马路、映汶路及映卧路为例,比较详细介绍了灾后测绘应急保障系统在灾后重建公路工程及后续待建高速公路测设中的应用,各资料成果经检验校核,符合相关规范和精度要求,可供灾区后续建设项目参考。
The Wenchuan Earthquake led to different degrees of displacement and elevation of the affected areas, especially in hardest hit areas. The plane and elevation control networks were destructively destroyed. In order to meet the urgent need of surveying and mapping baselines for post-disaster recovery and reconstruction work, Sichuan Bureau of Surveying and Mapping established a post-disaster emergency mapping support system. Take the examples of Wenma Road, Yingwen Road and Yingliu Road as examples, the application of post-disaster mapping emergency support system in post-disaster reconstruction of highway projects and subsequent construction of expressways to be built is described in detail. The results of each data are checked and verified to be relevant Normative and precision requirements for disaster recovery follow-up projects for reference.