Core Technology Principle, Key Types and Application Research on the Reproduction of Mudslide Animation

Abstract

Mudslide animation can present the dynamic process of mudslide disaster to people through virtual way, this paper classifies the composition type of mudslide from the cause of mudslide disaster, and then makes the mudslide animation more efficient and concrete when it reproduces in virtual, discusses the disaster warning, real-time reproduction of disaster for mudslide animation, Reflect the loss situation and the positive significance of knowledge dissemination. 1. The Significance of The Study of Mudslide Animation Mudslide flow is a sudden natural disaster phenomenon, mostly in the valley deep in the mountains or hillside areas, has a strong destructive, each year in China's mountains caused huge casualties and property losses, its characteristics include the strong, fast, destructive, huge flow, the occurrence of short time and high frequency. The reasons for its composition are produced under the combined effect of geological structure, topography, human economy and meteorology, and usually contain huge solid rock blocks and high-concentration sediment mixtures, showing the flow of the viscous layer flow and the sparse layer flow mixture. The motion form of mudslide includes a mixture of landslides and water-based sediments, which is a state of special material fluid movement of complex mixtures. The characteristics of the high intensity of mudslide eruption struck from the accumulation of the amount during the formation process to reach a zero boundary point, and after the occurrence of periodic, mass hair and the same hairstyle and other characteristics, so in the short term, a large number of rock blocks, sediments and trees from the ground height from top to bottom, and the formation of a stacking area, Where it goes, it causes great damage to the human production environment, poses a great threat to the safety of human life and property, and causes great damage to the construction of human infrastructure. And in the rapid development of modern computer film and television animation technology today, we can through the mud flow disaster computer simulation animation reproduction to study it, let it in the form of animation simulation rendering, so that we can more intuitive and specific analysis of it, which is in society, campus, In particular, it is of great significance to carry out popular science education in mountainous areas prone to mudslide disasters. 2. Key Types of Causes of Mudslide Disasters Collapses and landslides are usually caused by the loss of stability of geological slope rock and soil, and the causes are often inextricably linked, which can be considered as a large category in the key types of mudslide animation. Based on the leading factors to subdivide it, it can be divided into blasting vibration-induced, permeable irrigation-induced type, reservoir immersion-induced type, engineering load-trigger type, cut slope discharge type, underground excavation-induced type, freeze-thaw osmosis-induced type, natural evolution-induced type, earthquake-induced type, rain-induced type. The composition of the mudslide is a complex special fluid formed by the mixture of loose rock and soil and liquid water and other debris, which is considered as another type in the key type of 2020 International Conference on Social and Human Sciences (ICSHS2020) DOI: 10.38007/Proceedings.0000187 ISBN: 978-1-80052-000-4 1027 mudslide animation, and the mudslide disaster can be initially divided into the type of landslide erosion, the ice lake dam collapse type, the tailings dam collapse type, the project abandoned collapse type, the landslide dam collapse type, the landslide dam collapse type, Slope liquefaction type, valley evolution type. Accumulation slide erosion type: natural or man-made landslides or loose geology due to sharp rainfall, slope surface due to infiltration of rain caused by liquefaction, the formation of plastic flow of slip or landslide, and then along the depression caused by landslides repeatedly washed erosion, resulting in the formation of ditch shaping and trench erosion type of mudslides. Ice Lake Dam Collapse Type: A special type of mudslide formed in the high-cold mountain area, the advance of the glacier, the ice tongue fracture, the collapse or landslide on the slope of the ice lake, the melting acceleration caused by the rise in temperature, the collapse caused by the lake mouth to the lower part of the ice dam caused the ice lake to collapse, resulting in millions or even hundreds of millions of cubic meters of water immediately tilted down, During the period will be wrapped in a large number of sediment and rocks, the formation of ferocious, huge flow, short time, strong destructive landslide disaster. Tailing dam collapse type: because the mixture of tailings, slag and water body gradually over time makes the tailings dam deformation penetration, collapse formation, tailings reservoir due to artificial supervision and maintenance loopholes, may breed mudslide disaster, but also pollution of land and water resources. Engineering abandoned collapse type: in the process of construction due to surface excavation or underground excavation of slag in the ditch unreasonable emission accumulation, hindering the surface runoff or flash flood channel, accompanied by heavy rainfall under the formation of temporary lake, the rapid rise of water level and permeation deformation of geological rock and soil rapid liquefaction, subsidence and break the embankment to form a mudslide. Landslide dam collapse type: a landslide caused by rainfall, earthquake or engineering activities, due to the gradual rise of water level, loose rock and soil penetration deformation or new factors lead to landslides or the formation of a dammed lake breakwater the embankment of the mudslide. Slope liquefaction type: Slope rock and soil caused by regional typhoon rain or continuous local heavy rain in mountainous and hilly areas due to rain erosion, rapid saturation of rock and soil, and suddenly flow downward. The evolution of the valley type: In the evolution of the geological environment of the natural valley, the phenomenon of the effect of saturation, erosion, transportation and accumulation of rock and soil accumulation, the mudslide slower of the valley can be divided into three parts, namely, the source area, the circulation area and the accumulation area. Its basic characteristics are large water area, long movement path and strong destructive ability, often accompanied by landslides, showing a certain periodicity. 3. The Core Principle of Mudslide Animation 3.1 Key Parameters of Mudslide Special Effects Technology The main object of mudslide is the mixture fluid, which contains a variety of elements, such as liquid, solid and hybrid, in the process of mudslide, the accompanying fluid phenomenon is pour, collapse, break the embankment, collision, parcel, etc., has the basic characteristics of variability and mobility. In the physical parameters of the fluid and the parameters of the model algorithm, the parameters of fluid physics mainly include the number of particles of the fluid, particle mass, particle radius, static density, gravity acceleration and viscosity coefficient of the fluid, the radius of the particles determines the degree of fluid thinning, the static density determines the fluid mass, gravity acceleration determines the motion speed of the fluid. The above is the basic unit of computer computing behind the software simulation in the simulation mudslide animation. The representative software for simulating mudslides, such as RealFlow, 3dsMax, Rayfire, etc., can virtually different types of fluids and different elements of fluid strapped to the fluid, which can