Three dimension uniform model construction method of water conservancy hydropower engineering geological information

Abstract

This invention relates to a structure and analysis method for geographical 3-D unified models of water conservancy and water and electricity engineering, which couples multi-source data by the mixed data structure of NURBS YIN and BRep to realize 3-D unified modeling to all modeling objects and analyze said 3-D model including: analyzing the space geographical structure of the coupled multi-source data, carrying out sorted geometry modeling based on the mixed data structure of the NURBS, TIN and the BRep, carrying out Boolean operation based on the space relation among them and analysis and test for reliability to finish the structure of the 3-D unified model and finish the geographical analysis to water conservancy and water electricity engineering.

Description

technical field [0001] The invention relates to a construction method of a three-dimensional engineering geological model, in particular to a construction and analysis method for realizing a three-dimensional unified model of water conservancy and hydropower engineering geology by coupling multi-source data. Background technique [0002] Most of the water conservancy and hydropower projects are operated under the conditions of mountains and valleys. Due to the harsh geological conditions, complex geological structures, and numerous geological information, it has brought great difficulties to engineering geological surveys, hub layout and design, and underground engineering construction management. In all stages of geological survey and exploration of water conservancy and hydropower projects, it is necessary to obtain various geological information, including surface topography, stratum interface, fault, groundwater level, weathered layer thickness distribution, geophysical a...

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Problems solved by technology

[0006] In order to solve the defects in the above-mentioned prior art, the present invention proposes a construction and analysis method of a three-dimensional unified model of hydraulic and hydropower engineering geology, through the non-uniform rational B-spline (NURBS), irregular triangular network (TIN) and The hybrid data structure of boundary representation (BRep) couples all valid data from multiple sources to realize the construction of a three-dimensional unified model of hydraulic and hydropower engineering geology, and conducts a series of analyzes on the model in combination with the actual engineering situation, so as to provide a basis for the analysis of water conservancy under complex geological conditions. Provide reliable data information for geological problems in hydropower engineering survey, design and construction

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