Method for predicting damage engineering protection effect after high-position remote landslide

Abstract

The invention discloses a prediction method for a damage engineering protection effect after high-position remote landslide, and the method comprises the steps: building a landslide three-dimensionalterrain according to landslide digital elevation data, and building a landslide model based on a smooth particle flow three-dimensional SPH3D high-fidelity technology; establishing a protection engineering model by adopting the finite element (FEM) technology; selecting different boundary layer friction models and landslide motion parameters; selecting structural design and material strength parameters of protection engineering; acquiring the damage dynamic characteristics after landslide and interaction between a sliding body and a protection project through numerical simulation, and accordingly, acquiring a corresponding landslide speed, impact energy, protection project displacement and stress cloud chart numerical result chart; according to the obtained numerical value result graph, acquiring the damage movement speed, impact energy and other conditions after landslide. According to the method, the dynamic characteristics of the post-landslide damage can be completely and repeatedly obtained for multiple times, and the quantitative distribution condition of the stress and strain of the protection engineering in the post-landslide damage process is quantitatively analyzed.

Description

technical field

[0001] The invention relates to the technical field of high-position landslides, in particular to a method for predicting the protection effect of damage engineering after high-position remote landslides. Background technique

[0002] At present, affected by the dynamic response inside and outside the earth, the geological environment in the western mountainous area of ​​my country is complex, and human engineering activities are intense, which is a prone area for super-large high-level landslides. The high-level landslide is cut from the position of the high and steep slope and falls in the air. After the conversion of potential kinetic energy, it has the characteristics of extremely fast movement of the sliding body, huge impact energy and long-distance disaster. It is easy to cause devastating damage to surrounding buildings. Great harm to life and property safety. Efficient engineering protection measures can be used to intervene in the post-destruction ...

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