Method and system for FLAC3D software pre-processing

Abstract

The invention discloses a method and a system for FLAC3D software pre-processing. The method comprises the following steps of establishing a topographic contour map according to topographic data, andstoring the topographic contour map as a first format file; converting the first format file into a coordinate point document, interpolating coordinates in the coordinate point document, and generating a point cloud file; according to the point cloud file, obtaining a three-dimensional geometric model, and generating a geometric model file; performing mesh division on the three-dimensional geometric model according to the geometric model file, and generating a finite element model file; and converting the finite element model file into a FLAC3D mesh file, so that the FLAC3D software pre-processing is realized. According to the method and the system, a user does not need to master a computer language and a programming ability; the method and the system can be suitable for most users; the modeling time of a complex geological model can be shortened; the working efficiency is improved; and the method and the system can be widely applied to the technical field of three-dimensional modeling.

Description

technical field [0001] The invention relates to the technical field of three-dimensional modeling, in particular to a method and system for preprocessing of FLAC3D software. Background technique [0002] FLAC3D is a finite difference software specially developed for geotechnical engineering, which is widely used in the simulation fields of civil engineering, transportation, water conservancy and other engineering. At present, the pre-processing function of FLAC3D is relatively weak. Although FLAC3D has a powerful fish language function embedded in it, which can be used to build complex geological body models, it is difficult for ordinary users to realize it through fish language. Due to the weak pre-processing module of FLAC3D, most users can only create a relatively regular simplified model, but this simplified model is quite different from the project itself, and it is difficult to accurately simulate the actual situation of the project. In order to establish a FLAC3D mod...

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Problems solved by technology

At present, the pre-processing function of FLAC3D is relatively weak. Although FLAC3D has a powerful fish language function embedded in it, which can be used to build complex geological body models, it is difficult for ordinary users to realize it through the fish language.

Due to the weak pre-processing module of FLAC3D, most users can only create a relatively regular simplified model, but this simplified model is quite different from the project itself, and it is difficult to accurately simulate the actual situation of the project

In order to establish a FLAC3D model that is close to the actual engineering situation, many experts and scholars have carried out related research. For example, Hu Bin and Ding Xiumei used Fortran language or Visual Basic language to carry out secondary development and wrote the pre-processing program of FLAC3D, while Shi Yanhui and other scholars used AutoCAD, ANSYS and other software jointly establish complex geological models, but because these secondary development methods require users to master relevant computer languages ​​and certain programming capabilities, it is not conducive to general software users who cannot quickly learn and master. In addition, in this method It takes a long time to build a complex geological body model by using command flow in

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