Self-reaction force type reservoir landslide model test device and test method

Abstract

The invention relates to a self-reaction force type reservoir landslide model test device and test method. The device comprises a model groove, wherein a slide bed with the upper surface being inclined is arranged at the bottom of the model groove; the rear end of the slide bed is higher than the front end; a slip mass is arranged along the inclined surface on the slide bed; a water storage space is formed above the slide bed in the model groove; a water feeding pipe and a water draining pipe which are communicated with the water storage space are respectively arranged on the side wall of the model groove; a support component and a counterforce component are arranged along the inclined surface of the slide bed on the rear end face of the model groove in the form of backward stretching; a loading component is arranged on the support component; the loading component is clamped between the rear end face of the slip mass and the rear end of the counterforce component; the counterforce component is capable of pushing the slip mass to downwards slide along the inclined surface on the slide bed. According to the invention, the water feeding pipe and the water draining pipe are utilized to adjust the water level in the water storage space so as to simulate the practical running of reservoir; the loading component is utilized to apply force to the slip mass so as to simulate the whole process of the landslide evolution; the structure is compact and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of geological disaster model tests, in particular to a self-reflexive reservoir landslide model test device and test method. Background technique [0002] Landslides, as one of the most harmful geological disasters in the world, have caused huge damage to people's lives and properties. With the vigorous development of water conservancy and hydropower in our country, a large number of large-scale water conservancy and hydropower projects have been built in areas with complex geological conditions. The storage and operation of reservoirs in such projects will greatly change the initial conditions of mountains or original slopes in the reservoir area. Boundary conditions. Under the periodic fluctuation of reservoir water level, it will be very easy to induce new landslides or revive old landslides. Such newly generated landslides are usually called reservoir landslides. Therefore, it is of great significance ...

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Problems solved by technology

[0004] (1) Existing landslide physical model test devices or methods seldom involve research on the spatio-temporal evolution characteristics and instability modes of reservoir landslides, and reservoir landslides are very harmful, so it is necessary to study the evolution characteristics and instability modes of such landslides

[0005] (2) The loading devices of the existing landslide physical model test devices or methods mostly rely on loading equipment independent of the model frame, which is cumbersome and not reliable enough in use. Therefore, it is urgent to find a loading device that can be integrated with the model frame. Make the pre-test preparation and development process more convenient and stable

[0006] (3) In many existing landslide physical model test devices or methods, the direction in which the loading equipment applies thrust is not consistent with the direction of motion of the landslide body on the slide bed, so it is difficult to make the force fully and fully act on the landslide body, which cannot be realized. Simulate the real landslide force state

[0007] (4) Most of the existing landslide physical model test devices or methods are cumbersome and expensive to operate, and it is difficult to reduce the manufacturing cost and simplify the device or use method under the condition of achieving the research purpose and obtaining reliable test conclusions, so that the corresponding test The device or method is easy to operate and economical and practical

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