摘要

變形監測是按照一定的周期對變形體進行重復觀測以確定其形狀在空間位置隨時間的變化量，并利用觀測結果總結出變形規律從而監測變形體的運動.對并形體監測有實時觀測和周期性觀測，如果變形體變形緩慢，一般選取周期性變形監測，變形體有可能在壓力作用下瞬間發生變形，則使用需要實時監測。每一種變形體在變形過程中需要同時獲取大量相關數據，如果監測環境惡劣、高溫、高壓或者工作人員不能直接到達，同時滿足在監測過程中不能影響生產施工等眾多要求。傳統的測量方法觀測時間長，勞動量大已經不能滿足變形監測的要求，GPS定位技術具有精度高、速度快、全天候，借助GPS數據解算軟件可同時獲得空間點的三維坐標，已經廣泛在變形監測中得到應用。

本文對變形監測、GPS觀測原理、ashtechsolutions后處理軟件包的原理進行了說明，并借助分析GPS在某大壩獲得的兩期數據，用ashtech solutions后處理軟件包進行對控制網的數據處理平差解算，從而解算出觀測點的在WGS-84坐標系下的坐標，比較各個時期的觀測數據，完成對此大壩的監測。

關鍵字：變形監測  GPS技術  ashtech solutions 后處理軟件包 

ABSTRACT

Deformation monitoring is observing the plasmodium repeatedly and periodically, to make sure the variation of it’s spatiallocation .and summarizes it’s deformation rules, deformation monitoring is classified by real-time monitoring and periodic monitoring, generically, if the process of deformation is slow, we choose periodic monitoring, if the plasmodium may deform momentarily, we choose real-time monitoring. Every kind of monitoring need require lots of numbers ,traditional methods demand long time ,great work ,but has low work efficiency .even those ways can’t work under the atmosphere of hyperthermia and hyperpiesia.

 This paper mainly introduces the theory of deformation that it’s not access the workers. GPS positioning technology has many advantages, such as: high accuracy ,fast speed ,real-time, acquiring the 3D coordinates directly of spatial points, as a result ,it has been popularly applied in the filed of deformation monitoring. motion monitoring ,GPS observation ashtech solutions software, obtains the coordinates of spatial points in the WGS-84 coordinate with the help of data. Compare two periods’ observation data, and then finish the monitoring of dam.

Keywords: deformation monitoring , GPS technology, ashtech solutions

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