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Surface karst fissure zone soil surface loss and underground leakage simulation device

A simulation device and fissure zone technology, applied in the fields of hydrogeology and karst ecological environment protection, can solve problems such as soil surface loss without consideration, and achieve the effects of complete functions, high experimental efficiency, and low cost

Active Publication Date: 2021-04-06
TONGJI UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention is driven by hydrostatic pressure applied to the soil to make it migrate, rather than rainfall under natural conditions. Changes in rainfall conditions have differences in the distribution of water flow on the soil surface and the seepage process inside the soil. Therefore, soil There are differences in the surface flow and internal migration of particles; secondly, the invention does not consider the surface loss of soil, it is only used to simulate the process of soil underground loss, and the underground cracks of the invention are controlled by transparent hoses, which are similar to the real The soil-rock interface is quite different, and the friction coefficient of the soil-rock interface is also different

Method used

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  • Surface karst fissure zone soil surface loss and underground leakage simulation device
  • Surface karst fissure zone soil surface loss and underground leakage simulation device
  • Surface karst fissure zone soil surface loss and underground leakage simulation device

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Embodiment 1

[0038] A device for simulating soil surface loss and underground loss in surface karst fissure zone, such as figure 1 As shown, it includes a rainfall simulation platform, a karst slope and fissure simulation device, and an experimental data acquisition system.

[0039]The rainfall simulation platform includes a water inlet tap 1, a flow controller 2, a water pipe 3, a lifting iron frame 4, a limit steel plate 5, four adjusting screws 6, four circular sliders 7, a rainwater fluidization box 8, several Rainfall needles 9, two levels 10 and four vibration motors 11; the lifting iron frame 4 can be freely expanded and contracted to control the height of rainfall; the limit steel plate 5 is welded on the lifting iron frame 4, and four holes are hollowed out. A limiting circular groove is used to limit the vibration amplitude of the rainwater fluidizing box 8; one end of the adjusting screw 6 is fixed on the top of the rainwater fluidizing box 8, and the other end passes through th...

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Abstract

The invention relates to a surface karst fissure zone soil surface loss and underground leakage simulation device, which comprises a rainfall simulation platform, a karst slope surface and fissure simulation device and an experimental data acquisition system, wherein the rainfall simulation platform comprises a water inlet device, a rainwater fluidization device and a water outlet device which are connected in sequence, the water outlet device is arranged above the karst slope surface and fissure simulation device, the karst slope surface and fissure simulation device comprises a model box and a karst slope surface and fissure model arranged on the model box, the bottom of the model box is hollow, a surface loss collection funnel is installed on the side face of the model box, the karst slope surface and fissure model comprises a karst slope surface and a vertical karst channel arranged in the karst slope surface, and the experimental data acquisition system comprises an underground leakage water and soil collection box and a surface loss water and soil loss collection box. Compared with the prior art, surface karst fissure zone soil surface loss and underground leakage simulation data can be obtained under different karst slope conditions and different rainfall conditions in a short time.

Description

technical field [0001] The invention relates to the technical fields of hydrogeology and karst ecological environment protection, in particular to a soil surface loss and underground loss simulation device in a surface karst fissure zone. Background technique [0002] The phenomenon of rocky desertification in karst areas in Southwest my country has seriously affected the life of local people and economic development, and has become an ecological and environmental problem that needs to be solved urgently. The phenomenon of rocky desertification is mainly due to the long-term water and soil loss in the fragile karst ecology. Due to the complexity and duality of the geological structure in the karst area, besides the surface loss, the soil also has underground leakage. Among them, rainfall is the main cause of water and soil loss. External forces, karst fissures and pipelines are important causes of soil leakage. However, under natural conditions, the rainfall cycle is long a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N13/00G01N15/08G01N5/00
CPCG01N33/24G01N13/00G01N15/0826G01N5/00
Inventor 刘琦王涵廖启迪邓大鹏姚邦杰
Owner TONGJI UNIV
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