Method for establishing accumulation body slope numerical calculation model by adopting stone throwing mechanism

Abstract

The invention discloses a method for establishing an accumulation body slope numerical calculation model by adopting a stone throwing mechanism. The method comprises the steps of selecting typical parts of an accumulation body, and shooting images by adopting a digital camera to collect a batch of dimension stones; extracting the outlines of the dimension stones through a digital image processingtechnology, and establishing a dimension stone library; then, according to the range of the accumulation body provided by survey data, constructing a real calculation model of the accumulation body byadopting the stone throwing mechanism; and finally, converting the real calculation model into a graphic interaction file, and constructing model data of corresponding geotechnical material for analysis and calculation. According to the design, the real calculation model of the accumulation body is constructed by constructing the dimension stone library, calling the data of the dimension stone library and randomly putting the dimension stones, so that the real simulation of the composition of the accumulation body is realized, the calculation accuracy of the stability of the accumulation bodycan be effectively improved, and besides the stability coefficient of the accumulation body can be calculated, relevant information parameters such as stress and strain of the accumulation body can be obtained, so that good practicability and popularization prospects are achieved.

Description

technical field [0001] The invention relates to a method for establishing a numerical calculation model of an accumulation body slope using a catapult mechanism, and belongs to the technical field of slope protection. Background technique [0002] Accumulation is a concept based on genesis and properties of rock and soil. It refers to the geological body formed by the accumulation of loose and broken rock and soil. It belongs to the product of continuous movement after deformation and destruction of slopes. This kind of accumulation body is usually in a critical state in the natural state, but due to the disturbance of its excavation during engineering construction, the original topography and landform are destroyed, and the original balance state of the slope body is changed, which easily leads to the stability of the accumulation body problems, which bring troubles to the construction of the project. [0003] Most of the accumulations are composed of uneven blocks. The tr...

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Problems solved by technology

[0003] Most of the accumulations are composed of uneven blocks. The traditional analysis method for the stability of accumulations is the limit equilibrium method. In numerical modeling, the blocks composed of them are usually simplified into homogeneous bodies. This method ignores the Influenced by the shape, which is not consistent with the site conditions, resulting in a certain deviation in the calculation results, which cannot better meet the needs of slope engineering construction; therefore, it is urgent to invent an effective method for the stability analysis of accumulation bodies. On the basis of the distribution shape, the real simulation of the composition of the accumulation body is realized

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