CN-122020879-A - Method and related equipment for determining parameters of air column in mine water burst spreading process

CN122020879ACN 122020879 ACN122020879 ACN 122020879ACN-122020879-A

Abstract

The disclosure provides a parameter determination method and related equipment for an air column in a mine water burst spreading process. The method comprises the steps of obtaining a topological structure of a mining space in a mine, determining a closed local highest point and an air communication point based on the topological structure, determining an air column region by utilizing the closed local highest point and the air communication point based on a bottom plate elevation control region, and determining target parameters of the air column region based on a dynamic balance function of the air column region and an abutting relationship of the bottom plate elevation control region.

Inventors

WU QIANG
WANG XIAO
ZHAO YINGWANG
DU YUANZE
CHENG ZIHAO

Assignees

中国矿业大学(北京)内蒙古研究院
中国矿业大学(北京)

Dates

Publication Date: 20260512
Application Date: 20260104

Claims (10)

1. A method for determining parameters of an air column in a mine water burst spreading process, comprising the following steps: Acquiring a topological structure related to a mining space in a mine; Determining a closed local highest point and an air communication point based on the topological structure; Determining an air column region by utilizing the closed local highest point and the air communication point based on the bottom plate elevation control region; and determining target parameters of the air column region based on the adjacency relationship between the dynamic balance function of the air column region and the bottom plate elevation control region.
2. The method of claim 1, wherein determining a closed local highest point and an air communication point based on the topology comprises: Determining a local highest point based on the topology; Determining the local highest point belonging to a preset type as the closed local highest point; And/or the air communication points comprise a first air communication point and a second air communication point; determining a node in the topological structure, which is directly contacted with the atmosphere, as the first air communication point; And searching along the direction of the elevation of the bottom plate based on the first air communication point, and determining the diversion point on the searching path as a second air communication point.
3. The method of claim 2, wherein determining the split point on the search path as the second air communication point based on the search of the first air communication point along the direction in which the floor elevation decreases comprises: Searching nodes of the current base plate elevation control area along the direction of reducing the base plate elevation for the current base plate elevation control area where the first air communication point is located, and determining a split point on the searching path as the second air communication point of the current base plate elevation control area; And searching the floor elevation control area adjacent to the second air communication point along the direction of lowering the floor elevation, and determining the split point on the searching path as the second air communication point of the adjacent floor elevation control area until reaching the local lowest point.
4. The method of claim 1, wherein determining an air column region using the closed local highest point and the air communication point based on a floor elevation control region comprises: determining whether an air communication point exists in a bottom plate elevation control area where the highest point of the closed part is located; responding to the existence of an air communication point in a baseplate elevation control region where the highest point of the closed part is located, and determining a maximum elevation point communicated between the air communication point and the highest point of the closed part; And determining a bottom plate elevation control area where the closed local highest point is located as the air column area in response to the maximum elevation point being smaller than the closed local highest point.
5. The method of claim 4, further comprising: determining that the air column region does not exist in a bottom plate elevation control region where the closed local highest point is located in response to the maximum elevation point being greater than or equal to the closed local highest point; Or alternatively Responding to the condition that no air communication point exists in a bottom plate elevation control area where the closed local highest point is located, and continuously searching for the adjacent bottom plate elevation control area until the bottom plate elevation control area where the air communication point exists is detected; and determining the sum of all the areas of the floor elevation control areas searched from the floor elevation control area where the highest point of the closed part is located as the air column area.
6. The method of claim 1, wherein determining the target parameter for the column region based on the dynamic balance function of the column region and the abutment relationship of the floor elevation control region comprises: Before the top plate of the local lowest point in the air column area is submerged, the water levels at two sides of the local lowest point are the same; After the top plate of the local lowest point in the air column area is submerged, determining the water level and the accumulated water quantity outside the air column area when the water level in the air column area reaches the bottom plate elevation of the boundary point of each bottom plate elevation control area based on the dynamic balance function.
7. The method of claim 6, wherein the dynamic balancing function comprises: , Wherein, the For the density of water, g is gravity acceleration, h 2 is high pressure side water level, h 1 is low pressure side water level, n is the amount of substances in the air, R is gas constant, T is thermodynamic temperature of the air, V (h 1 ) is gas volume of the air column region, V (h 1 ) can be calculated by using mine tunnel size and h 1 , and P 0 is standard atmospheric pressure.
8. A parameter determination device for an air column in a mine water burst spreading process, comprising: The acquisition module is used for acquiring a topological structure related to a mining space in a mine; the preset point module is used for determining a closed local highest point and an air communication point based on the topological structure; The air column region module is used for determining an air column region by utilizing the closed local highest point and the air communication point based on the bottom plate elevation control region; And the air column parameter module is used for determining the target parameter of the air column region based on the adjacency relationship between the dynamic balance function of the air column region and the bottom plate elevation control region.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of determining parameters of a gas column during a mine water inrush propagation as claimed in any one of claims 1 to 7 when the computer program is executed.
10. A non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of determining parameters of a gas column in a mine water inrush propagation process of any one of claims 1 to 7.

Description

Method and related equipment for determining parameters of air column in mine water burst spreading process Technical Field The disclosure relates to the field of mine water bursting, in particular to a parameter determination method and related equipment for an air column in a mine water bursting spreading process. Background The mine water burst is one of the most disasters in underground mining, and has the characteristics of burst property, high transmission speed, serious consequences and the like. In recent years, the water bursting event is remarkably reduced, and experience is lost in the aspect of water damage emergency. The existing mine water burst flow spreading simulation technology mainly adopts a numerical simulation method, wherein the three-dimensional numerical simulation technology is only suitable for water flow simulation of a local simple roadway, has huge calculation amount and lower simulation efficiency, has good effect, improves calculation efficiency compared with the three-dimensional numerical simulation, still is difficult to meet the requirement of actual disaster emergency response, and often ignores the existence of air columns in a closed space, so that the accuracy is not high. Disclosure of Invention The disclosure provides a parameter determination method and related equipment for an air column in a mine water burst spreading process, which at least solve the technical problems of low accuracy and the like of gait analysis in the related technology to a certain extent. In a first aspect of the present disclosure, a method for determining parameters of an air column in a mine water burst spreading process is provided, including: Acquiring a topological structure related to a mining space in a mine; Determining a closed local highest point and an air communication point based on the topological structure; Determining an air column region by utilizing the closed local highest point and the air communication point based on the bottom plate elevation control region; and determining target parameters of the air column region based on the adjacency relationship between the dynamic balance function of the air column region and the bottom plate elevation control region. In a second aspect of the present disclosure, there is provided a parameter determining apparatus for an air column in a mine water burst spreading process, comprising: The acquisition module is used for acquiring a topological structure related to a mining space in a mine; the preset point module is used for determining a closed local highest point and an air communication point based on the topological structure; The air column region module is used for determining an air column region by utilizing the closed local highest point and the air communication point based on the bottom plate elevation control region; And the air column parameter module is used for determining the target parameter of the air column region based on the adjacency relationship between the dynamic balance function of the air column region and the bottom plate elevation control region. In a third aspect of the present disclosure, there is provided an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method according to the first aspect when executing the program. In a fourth aspect of the present disclosure, there is provided a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of the first aspect. In a fifth aspect of the present disclosure, there is provided a computer program product comprising computer program instructions which, when run on a computer, cause the computer to perform the method according to the first aspect. From the above, it can be seen that the method and the related equipment for determining parameters of air column in the mine water burst spreading process provided by the present disclosure determine a closed local highest point and an air communication point based on the mine mining space topological structure. On the basis of the elevation control area of the bottom plate of the mining space, the area forming the air column is searched by utilizing the closed local highest point and the air communication point, the area possibly forming the air column in the complex mining space structure is determined in advance, and the complexity of air column calculation is reduced. And finally, establishing a dynamic balance equation with the water pressure difference between the inside and outside of the area equal to the air pressure difference in the area where the air column is formed, and calculating the dynamic change condition of the air column in the area where a plurality of control areas are combined based on the adjacency relation of the elevation control areas of the mining space bottom plate, so as to provide a basis for determining