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ABSTRACT: FLAC is a numerical analysis software which applied widely in geotechnical engineering. Theoretical basis and specific calculation steps of FLAC are introduced. The problems like model establishment of FLAC numerical analysis software, numerical calculation, result analysis and so on are discussed combine with a loess landslide in Liaoning province. The paper offered the proposals on the slope control.
KEYWORDS: FLAC, Rock slop, High-slop reinforcement, Calculation mode, Stability
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1 INTRODUCTION
Hongtoushan copper mine is located in Qingyuan county, Liaoning province. The company is an affiliated enterprise to CNMC company that founded in 1950. As the scale of the production increased, the enterprise needs to build the new factory. After repeated site selection and argumentation, the place was seleted in Hongtoushan town. Its leagth from north to south was about 300m and its width from east to west was about 140m. It is builded smoothly after excavating and piling. According to preliminary scheme, the height of cut slope reaches 62m and the cut slope belongs to extra-high rock slopes. There are 220 -million -volts UHV transmission lines on the rock slope and there are auxiliary production facilities at the bottom of the rock slope. The stability and security of the rock slope is very important for the operation safety of the copper mine. Therefore, the study of stabilization after excavation of the extra-high rock slope is of great significance. This paper calculates stability and supporting force of the rock slope by using the transmitting coefficient method and analyses reinforced stabilization of the rock slope with the FLAC, a kind of finite element numerical analysis software. The research result provides reliable references for slope reinforcement and I hope to promote the application of FLAC in the extra-high rock slope engineering through this paper [2].
2 PROGRAM INTRODUCTION
FLAC is a numerical modeling code for advanced geotechnical analysis of soil, rock, and structural support in three dimensions. FLAC is used in analysing, testing, and designing by geotechnical, civil, and mining engineers. It is designed to accommodate any kind of geotechnical engineering project where continuum analysis is necessary[3]. FLAC3D utilizes an explicit finite difference formulation that model complex behaviors are not readily suited to FEM codes, such as problems that consist of several...