Physical model experimental device for simulating the deformation and failure process of structures on landslides

Abstract

The invention provides a physical model experiment device for simulating a deformation damage process of a building and a structure on a slope. The physical model experiment device comprises an experiment table fixed part and an experiment table movable part, wherein the experiment table fixed part comprises a fixed pressure bearing plate and a fixed accommodating groove; the fixed accommodating groove is formed in the fixed pressure bearing plate; the bottom of the fixed pressure bearing plate is in fixed arrangement; a fixed side opening is formed in the side surface of the fixed accommodating groove; the experiment table movable part comprises a movable pressure bearing plate, a movable accommodating groove and a slide rail support frame; the movable accommodating groove is formed in the movable pressure bearing plate; the slide rail support frame is arranged at the bottom of the movable pressure bearing plate; a movable side opening is formed in the side surface of the movable accommodating groove; a tensioning slide rail and a shearing slide rail are vertically arranged on the slide rail support frame; the movable pressure bearing plate is glidingly arranged on the tensioningslide rail and the shearing slide rail; the movable side opening is aligned with the fixed side opening; and a sample groove with an opening at the upper end and with sealed side walls is formed through splicing joint. The physical model experiment device has the beneficial effects that the deformation damage process of the building and the structure due to slope horizontal displacement is simulated; and the basis is provided for studying the vulnerability of the building and the structure under the slope horizontal movement.

Description

technical field [0001] The invention relates to the technical field of geological disaster model experiments, in particular to a physical model experiment device for simulating the deformation and destruction process of structures on landslides. Background technique [0002] Landslides are the most common types of geological disasters in my country. Due to many factors such as land resource conditions and social and economic policies, landslides can only be used as land for residential buildings in a large number of areas in my country (such as the Three Gorges reservoir area), and there is a tendency to further develop and utilize ancient landslides to meet the needs of urban development. The vast majority of these landslides did not enter the stage of instability and failure, but caused damage or damage to residential buildings, pipelines, towers and other structures above them with gradual creep deformation. Due to the complex mechanism of landslides on buildings and str...

AI Technical Summary

Problems solved by technology

Due to the complex mechanism of landslides on buildings and structures, in the past, the analysis of deformation and failure rules of buildings and structures under the action of landslides and the evaluation of damage degree were mainly based on the investigation and statistical analysis methods of historical disaster data, and the quantitative research methods were obviously insufficient.

In 2011, Wu Yue et al. developed an experimental device for simulating the whole process of landslide impact damage to buildings, which provided an experimental means for quantitative research on the deformation and failure rules and damage degrees of buildings and structures under the action of landslides. Experimental research has rarely been carried out

[0003] At present, the indoor model experimental devices involved in simulating the deformation and failure process of buildings are mainly designed and constructed for earthquakes or ground subsidence. The former mainly focuses on simulating the influence of the foundation vibration of buildings and structures on the superstructure, and the latter mainly focuses on simulating the vertical vibration of buildings and structures. The impact of displacement on the upper structure, for example: Chinese patent CN108362856A discloses a model experimental device for simulating long-term ground settlement in high-density urban areas, and CN109545069A discloses an experimental device for simulating uneven settlement of goaf buildings and its use method, The above experimental devices did not consider the influence of the uneven horizontal movement of the foundation of the building structure on its superstructure, and the landslide will just cause the horizontal movement of the foundation of the superstructure. The needs of the experimental device urgently need to be developed

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