Automatic FLAC3D Mesh Generation Based on Advancing-Frontal Method

Abstract

For the disadvantage in modeling at complex areas, advancing-frontal triangulation method was firstly applied in building numerical model of FLAC3D software. Suitable date structure and algorithm based on Fish program language was mainly studied. The position criterion of adjacent edges to current edge is brought in to improve the efficiency of algorithm; equilateral triangle or isosceles triangle mesh is generated to improve elements’ quality; element size is controlled by simple mathematics means so smooth graded triangular mesh is constructed. Through the research, the first independent FLAC3D pre-process is developed successfully, without relying on other modeling software. Application example shows the feasibility of the method.

Calculation and Analysis Techniques of Foundation Pit Engineering Based on FLAC3D

“…Internal force calculation, cross-section design, stability checking will be accomplished according to the design requirements by different industry standards. Threedimensional modeling method of the arbitrary shape excavation and calculation and analysis mode will be worked out to get the characteristic of supporting structure internal force, deformation and ground settlement [5,6]. This research can provide the basis for both design and research work in foundation pit engineering.…”