A simulation method and system for a centrifugal model test of a barrier dam

Abstract

A method for simulating a centrifuge model test of a dam. In a model box, mixed materials of crushed stone and sand are used to simulate a dam body, and potassium nitrate powder is randomly arranged in it, and the model box is placed in a centrifuge hanging basket. After the acceleration is stabilized at the set value, water is injected into the model box to dissolve the potassium nitrate powder, and a non-uniformly distributed pore structure is formed in the dam body to simulate the generation of non-uniform deformation; the invention also provides a dam Centrifugal model test simulation system, the present invention aims at the characteristics of complex material properties of barrier dams, large pore structures with uneven distribution inside, and uneven deformation, and realizes the simulation of unevenly distributed pores of barrier dams in geotechnical centrifuges structure.

Description

technical field [0001] The invention belongs to the technical field of barrier dam model tests, in particular to a simulation method and system for a centrifugal model test of barrier dams. Background technique [0002] Barrier dams are often produced with geological disasters and are widely distributed in mountainous areas around the world. The existence of barrier dams poses a huge threat to the safety of people's lives and properties downstream, and if it is not handled properly, it will cause devastating disasters. The barrier dam is mainly composed of two types of structures, the "natural" barrier body formed by the landslide and the "artificial" anti-seepage body designed and built, and is significantly affected by the dam foundation and the reservoir bank slope. Barrier dams are located in a complex and changeable environment, and they also have functions such as water retention and flood discharge. Therefore, they experience frequent stress change processes, deforma...

AI Technical Summary

Problems solved by technology

Due to the complex material properties of barrier dams, there are often unevenly distributed pore structures during the formation process, resulting in uneven large deformations

At present, there is no centrifugal model test simulation technology for barrier dams, and the important role of geotechnical centrifugal model test methods in the study of the deformation and failure characteristics of barrier dams cannot be well utilized.

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