Multi-field coupling simulation test device and method for mine groundwater pollution

Abstract

The invention discloses a multi-field coupling simulation test device and method for mine groundwater pollution, and the device comprises a constant-temperature water bath box, one side of the constant-temperature water bath box is communicated with a water storage box, the outer side of the water storage box is provided with a control mechanism, and the top of the constant-temperature water bath box is provided with a stress loading mechanism. The stress loading mechanism comprises a covering and pressing steel plate movably connected to the top of the constant-temperature water bath box, a temperature control mechanism and a monitoring mechanism are arranged in the constant-temperature water bath box, and a water level control mechanism is further arranged in the constant-temperature water bath box; the stress loading mechanism, the temperature control mechanism, the monitoring mechanism and the water level control mechanism are electrically connected with the control mechanism, so that four-field coupling of a stress field, a chemical field, a seepage field and a temperature field is realized, and a simulation environment in a pollutant transport process is closer to a real natural condition; the migration process of mine underground water pollutants under the multi-field coupling effect is achieved through scientific and accurate simulation.

Description

technical field [0001] The invention relates to the interdisciplinary technical fields of environmental engineering, mining engineering and seepage mechanics, in particular to a multi-field coupling simulation test device and method for underground water pollution in mines. Background technique [0002] Under the influence of large-scale mine mining, the structure of strata and rock strata has been greatly changed, which has caused major changes or damage to a certain extent in the groundwater system of mining mines and the natural balance of water resources and the conditions of recharge, runoff, and discharge. The change of groundwater stress field seriously damages groundwater resources and groundwater circulation system, has a profound impact on groundwater chemical field and seepage field, and causes the water quality of groundwater to deteriorate; and the change of groundwater seepage field and chemical field will further weaken the stratum structure, It has an importa...

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Problems solved by technology

[0005] At present, static adsorption experiments or indoor dynamic one-dimensional soil column experiments are often used in the study of pollutant migration. The existing achievements focus on the coupling relationship between seepage or stress and seepage field in different media models, and cannot completely and objectively simulate mine pollution. The process of material

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