METHOD FOR PREDICTING FORWARD PATTERN OF BLIND END OF TUNNEL USING THREE DIMENSION SCAN DATA

摘要

In a computer device including at least one memory and at least one processor, a method for predicting a forward pattern of a blind end is performed by at least one processor. Provided is a method for predicting a forward pattern of a blind end of a tunnel comprising: a step for searching a blind end station by using three dimension scan data; a step for generating a blind end image by converting a measurement coordinate point according to three dimension scan data in accordance with a blind end surface image coordinate; a step for generating a joint surface from multiple blind end surface images by connecting each joint line collected from the multiple blind end surface images; and a step for predicting a joint line in a blind end surface of a random station location of a blind end forward based on the generated joint surface. [Reference numerals] (AA) Start;(BB) End;(S410) Insert a cross section generating station;(S415) Calculate a location of a curvature at the insertion station, and calculate a direction vector;(S420) Calculate matrix A for making X,Y, and Z at a station location a starting point of a cross section coordinate;(S430) Calculate matrix B for making the direction vector at the station location a Z-axis;(S435) Calculate A � B = C matrix;(S440) Calculate a location P at an end of a terminal spline and a direction vector V;(S445) Calculate P � C = P' and V � B = V';(S450) Generate a joint trace at a front cross section by connecting all calculated prediction points