Abstract During the information construction times，with the aim of accurately predicting the deformation of supporting piles，the correlations between the measurement points in supporting piles should be taken into account in predicting the deformation of supporting structure for deep pit excavations；and the analysis of monitoring data and establishment of a proper model should be performed on the basis of the deformation behavior of the entirely deformed system；and because deformation of one measuring point has an influence on another in the same supporting pile of deep pit. Based on such concept，a single deformation prediction model is extended into a multi-point mode1 and coded with MATLAB. A multi-point prediction model is established，and its application to a case study is presented to verify the multi-point model. The results indicate that the proposed model is effective for predicting the deformation of supporting structures for deep excavations，more effective than the grey prediction model GM(1，1) for information construction of the engineering.
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Received: 21 July 2006
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