True three-dimensional physical model testing system for simulating burst water disaster in deep cavern

Abstract

The invention discloses a true three-dimensional physical model testing system for simulating a burst water disaster in a deep cavern. The true three-dimensional physical model testing system comprises a box-type sealed loading reaction device, an ultra-high-pressure true three-dimensional loading system, a servo control high-permeability hydraulic loading system, a tilt geological structure manufacturing system, a model cavern automatic excavation system and a model comprehensive testing and analysis system. The box-type sealed loading reaction device serves as a model test loading reaction device and is used for accommodating a model body and a high-pressure water body, wherein the ultra-high-pressure true three-dimensional loading system performs ultra-high-pressure true three-dimensional loading, the servo control high-permeability hydraulic loading system performs high-permeability hydraulic automatic loading, and the tilt geological structure manufacturing system is used for manufacturing the model body containing a tilt geological structure therein; and the model cavern automatic excavation system is used for automatically excavating a model cavern, and the model comprehensive testing and analysis system automatically acquires model test data and stores the model test data quickly. The true three-dimensional physical model testing system has broad application prospects in simulating burst water geological disasters in hydropower, transportation, energy and deep cavern in mines.

Description

technical field [0001] The invention relates to a true three-dimensional physical model test system for simulating water inrush disasters in deep caverns used in the fields of hydropower, transportation, energy and mine engineering. Background technique [0002] With the rapid development of society and economy, China has developed into a country with the largest number of tunnels and underground projects in the world, the largest scale, the most complex geological conditions, and the most diverse structural forms. In recent years, the construction of deep caverns such as China's hydropower diversion tunnels, traffic tunnels, and mine roadways has developed vigorously, and the focus of construction has shifted to the western mountainous areas and karst areas with complex geological conditions. During the construction of deep caverns (traffic tunnels, water diversion tunnels, mine roadways, etc.), disasters occur frequently, forming hidden and sudden large-scale geological di...

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Problems solved by technology

[0003] (1) "Water" No. 9, 2018 introduced a model test system, which can simulate the process of water inrush in cavities, but cannot realize the coupled loading of true three-dimensional high geostress and high seepage pressure, and cannot simulate the behavior of inclined geological structures. Influence and automatic excavation process of the model cavern

[0004] (2) Volume 94 of "International Journal of Rock Mechanics and Mining Sciences" in 2017 introduced a model test system that can simulate the long-term operation stability of gas storage groups in deep layered salt rock formations, but this system cannot simulate high ground stress Due to the coupling effect of the high seepage field and the high seepage field, the inclined geological structure cannot be prepared, and the automatic excavation process of the model cavern cannot be simulated.

[0005] (3) "Energies" No. 6, 2017 introduced an intelligent digital control ultra-high pressure loading model test system, which can simulate the collapse and failure process of deep buried caverns, but this system cannot simulate the coupling of high geostress field and high seepage flow field function, unable to prepare inclined geological structures, and unable to simulate the automatic excavation process of model caverns

[0006] (4) Volume 62 of "Tunnelling and Underground Space Technology" in 2017 introduced a triaxial model test system that can simulate fluid-solid effects. The size of the model that the device can accommodate is small, and it cannot make inclined geological structures, nor can it simulate the automatic excavation process of the model cavern

[0007] (5) Volum

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