A unified modeling method of geological objects and engineering objects based on TP

In order to place geological objects and engineering objects together in a 3D environment, to provid a geological environment for engineering construction, we should have these two objects unified modeled. The existing research on unified model of borehole data resources is based on generalized tri-prism(GTP), which cater to deviation of true boreholes but increase the complexity and the difficulty of manipulation and analysis.This paper uses deviating borehole as initial data to propose an assumption of correcting it to vertical one.Basing on this data,a simple and easy-analysised structure which calls triangular trism(TP) is chosen as the unified model. Meanwhile, it forms a method of unified modeling geological objects and engineering objects with small amount of data and high expansibility.And it expands the original data organization to suit the unified model. Finally, it presents an example to prove the efficiency of this new method.