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Key Technologies of Prediction and Display of Deformation Field Induced by Underground Construction

Jie Zhang

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Abstract

Basing on the Engineering Investigation Information System,a Underground Construction Deformation Display System is developed.Empirical methods were used to predict the deformation of strata and buildings in the system.3D regular grid model and triangulated irregular network(TIN) model were used for the 3D deformation field visualization.For the TIN model,the adaptive TIN keep-geometry refinement algorithm were developed.This algorithm can depict the deformation field in higher resolution without remarkable data size increase.Therefore the modeling and analysis of very large areas become possible.

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What this paper is about

Basing on the Engineering Investigation Information System,a Underground Construction Deformation Display System is developed.Empirical methods were used to predict the deformation of strata and buildings in the system.3D regular grid model and triangulated irregular network(TIN) model were used for the 3D deformation field visualization.For the TIN model,the adaptive TIN keep-geometry refinement algorithm were developed.This algorithm can depict the deformation field in higher resolution without remarkable data size increase.Therefore the modeling and analysis of very large areas become possible.

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Available abstract

Basing on the Engineering Investigation Information System,a Underground Construction Deformation Display System is developed.Empirical methods were used to predict the deformation of strata and buildings in the system.3D regular grid model and triangulated irregular network(TIN) model were used for the 3D deformation field visualization.For the TIN model,the adaptive TIN keep-geometry refinement algorithm were developed.This algorithm can depict the deformation field in higher resolution without remarkable data size increase.Therefore the modeling and analysis of very large areas become possible.

Key concepts: Deformation (meteorology), Field (mathematics), Key (lock), Triangulated irregular network, Grid, Computer science, Visualization, Data mining

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