Movement Characteristics of Rockfall Collapse Based on CRockfall Numerical Simulation
[Purposes]The slope rockfall collapse disaster of highway engineering in mountainous area has the characteristics of suddenness and strong catastrophability,which is a common geological safety haz-ard in the process of engineering construction and operation.Therefore,it is necessary to study the char-acteristics of rockfall collapse movement.[Methods]Taking the rockfall of a highway slope in Southwest China as an example,based on the introduction of the analysis and calculation algorithm of rockfall mo-tion,the CRockfall rockfall software is used to simulate the typical rockfall trajectory and obtain the main motion characteristics.[Findings]From the peak value of the statistical maximum curve,the kinetic en-ergy,bounce height and velocity of rockfall are about 2 000 kJ,75 m and 53 m/s,respectively.The statis-tical 95%guarantee rate and the mean curve are basically the same.From the peak value of the curve,the kinetic energy,bounce height and velocity of the rockfall are about 500 kJ,25 m and 25 m/s,respec-tively.[Conclusions]In the typical position,the software data collector function is used to obtain the characteristic parameters of rockfall motion,which provides the basis for the later block structure design.
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