Ion type rear-earth in-situ leaching landslide test system

Abstract

The invention belongs to the field of test of geological disaster models and relates to a landslide test system, in particular to an ion type rear-earth in-situ leaching landslide test system. The ion type rear-earth in-situ leaching landslide test system comprises a tank body, a mineral-leaching and liquid-injecting control part which is arranged on the top of the tank body, a displacement monitoring part which is arranged in the tank body, a penetration testing part, and a water outlet device which is distributed on the bottom of the tank body. The ion type rear-earth in-situ leaching landslide test system is high in degree of automation, can be used for performing deformation and fracture tests on a rear-earth mine in-situ leaching landslide under the action of various factors, and has the advantages of being convenient, strong in operability, reproducible and the like; an evolution process and a fracture mechanism of the rear-earth mine in-situ leaching landslide can be disclosed from a macroscopic perspective by regulating the liquid injection amount by regulating the water inlet switch, simulating different practical conditions of rear-earth mine in-situ leaching, testing landslide parameters under different liquid injection conditions and providing reliable test data, so that a theoretical basis is provided for preventing the rear-earth mine in-situ leaching landslide.

Description

technical field [0001] The invention belongs to the field of geological disaster model tests, and relates to a landslide test system, in particular to a landslide test system for ionic rare earth in-situ leaching ore. Background technique [0002] China is a country rich in rare earth resources, and the proven industrial reserves of rare earths account for 80% of the world's known rare earth reserves. The south is dominated by heavy rare earths, and the north is dominated by light rare earths. The type of ionic rare earth deposits in the south is "weathered crust type", which is rich in medium and heavy rare earth elements such as yttrium, dysprosium and terbium, which are necessary for modern high-tech and cutting-edge fields such as national defense, and are my country's advantageous mineral resources and strategic resources. About 75%-95% of rare earth elements in ion-adsorption rare earth weathering crust deposits are adsorbed in cationic state such as kaolin and montmo...

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Problems solved by technology

[0007] (2) The existing test device with rainfall device only considers the influence of rainwater infiltration on slope stability, which is different from the influence of in-situ leaching ore injection on slope stability. During the weathering process, it is easy to form weathered crusts of various shapes, ranging from a few centimeters thin to tens of meters thick. The slope failure form and sliding surface are obviously different from homogeneous soil or bedrock landslides. In situ leaching ore injection Under the influence of soil, the law of deformation and failure is significantly different from the shape and characteristics of homogeneous soil landslides. Therefore, the test of the impact of in-situ leaching ore injection on landslides with conventional test equipment cannot fully reflect the law of landslides in rare earth mines.

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