Study on the Dissipative Structure Information Entropy of Slope and Its Evolution Law
By analyzing the occurrence principle of dissipative energy in slope disaster process,the information entropy of dissipative structure is proposed,and the calculation formulas of dissipative energy and entropy are established.Taking the slope of Sijiaying open-pit iron mine as the engineering background,the dissipative energy and entropy of the slope disaster process are simulated and calculated by using FLAC3D numerical software.The distribution of dissipative energy cloud and en-tropy cloud in the initial state,limit equilibrium state and instability state of the slope and its evolution law in the disaster process are obtained.The results show that in the initial stage,the dissipative energy and entropy are very low,and are concen-trated near the slope toe line at the bottom of the slope and the brow line at the top of the slope.In the limit equilibrium state and the instability state,the dissipative energy cloud and the entropy cloud have shifted to the slip surface,and the dissipative energy increases significantly,and the entropy value increases slowly.The slope disaster process presents three stages:entropy stability,entropy growth and entropy mutation.The research results provide a new visualization method for slope stability identi-fication and landslide prediction.
side slopedissipative energyentropycatastrophe evolution
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