CN-121997434-A - Mine ecological restoration planning method and system based on three-dimensional modeling

CN121997434ACN 121997434 ACN121997434 ACN 121997434ACN-121997434-A

Abstract

The invention relates to the technical field of mine ecological restoration and three-dimensional modeling, in particular to a mine ecological restoration planning method and system based on three-dimensional modeling; the method comprises the steps of obtaining a mine space basic data set to construct a mutation dominant dynamic three-dimensional model layer, generating a line sampling change sequence, constructing a minimum damage unit object and generating a mutation event object, extracting line sampling change fragments and carrying out structural collection to generate a feasibility evidence packet, generating a minimum intervention action kernel object, carrying out local verification on the minimum intervention action kernel object based on a local intervention verification loop within the range of a section of the minimum damage unit object to judge the elimination state of the mutation event object, outputting a verification result set, and updating the feasibility states of the minimum damage unit object and the mutation event object to generate a mine ecological restoration planning scheme. The invention realizes a method for planning ecological restoration of a mine by using mutation-dominated dynamic three-dimensional modeling.

Inventors

ZHANG ZHAOCHANG
LI YUNPENG
Yang Lizhai
LI YAN
LI YANCHEN
ZHAO JINZHAO
GUO RUI
HE JIALIN
WANG GUOCHEN
MA XIAO

Assignees

河北省地质矿产勘查开发局国土资源勘查中心(河北省矿山和地质灾害应急救援中心)

Dates

Publication Date: 20260508
Application Date: 20260130

Claims (9)

1. The mine ecological restoration planning method based on three-dimensional modeling is characterized by comprising the following steps of: S1, acquiring a mine space basic data set, constructing a three-dimensional terrain surface model, loading a linear engineering planning constraint set to the three-dimensional terrain surface model, establishing an engineering constraint function relation, and constructing a mutation dominant dynamic three-dimensional model layer based on the three-dimensional terrain surface model and the linear engineering planning constraint set; S2, generating a line sampling change sequence in the mutation leading dynamic three-dimensional model layer along the engineering corridor direction based on the engineering constraint action relation, performing comparison analysis on the line sampling change sequence and the engineering constraint action relation to construct a minimum damage unit object, generating a mutation event object corresponding to the minimum damage unit object, and writing the minimum damage unit object and the mutation event object into the mutation leading dynamic three-dimensional model layer; In the S2, the minimum damage unit object is a section unit which is divided along the direction of an engineering corridor and used for representing the constraint state of local terrain, and the abrupt change event object is an event identification object of the minimum damage unit object, wherein the event identification object is in the condition of engineering constraint violation; S3, extracting a line sampling change segment positioned by a mutation event object from a mutation leading dynamic three-dimensional model layer, carrying out structural collection on the line sampling change segment to generate a feasibility evidence packet, and generating a minimum intervention action kernel object which is in one-to-one correspondence with a minimum destruction unit object by combining a linear engineering programming constraint set; In the step S3, the minimum intervention action kernel object is an intervention action set for eliminating the corresponding mutation event object in the section range of the minimum destruction unit object, and the local intervention verification loop is a verification path limited in the section range of the minimum destruction unit object; And S4, writing the kernel object of the minimum intervention action corresponding to the verification result set back to the mutation dominant dynamic three-dimensional model layer, updating the feasibility states of the minimum damage unit object and the mutation event object, and carrying out parameterization reconstruction on the linear engineering planning constraint set based on the updated mutation dominant dynamic three-dimensional model layer to obtain a linear engineering planning data set so as to generate a mine ecological restoration planning scheme.
2. The mine ecological restoration planning method based on three-dimensional modeling is characterized in that in S1, a mutation-dominant dynamic three-dimensional model layer is constructed based on a three-dimensional terrain surface model and is used for bearing three-dimensional model layers related with various engineering state evolution information under a unified three-dimensional space reference, the mutation-dominant dynamic three-dimensional model layer comprises a three-dimensional terrain surface model constructed by a mine space basic data set, an engineering constraint relation formed by loading a linear engineering planning constraint set, a minimum damage unit object and a mutation event object, wherein the minimum damage unit object is mapped on the three-dimensional terrain surface model in a section mode, and the mutation event object is associated with the corresponding minimum damage unit object and is used for representing a local engineering constraint state and a change result thereof in the mutation-dominant dynamic three-dimensional model layer.
3. The mine ecological restoration planning method based on three-dimensional modeling is characterized in that in S2, a line sampling change sequence is a terrain change data sequence which is based on engineering constraint action relation and obtained by continuously sampling a three-dimensional terrain surface model in an abrupt leading dynamic three-dimensional model layer along the direction of an engineering corridor, the terrain change data sequence is used for representing the continuous change state of a terrain space form in the direction of the engineering corridor, the terrain change data sequence is also used for comparing analysis with the engineering constraint action relation to identify the change condition of a local engineering constraint state so as to construct a minimum damage unit object, the minimum damage unit object is a section unit divided along the direction of the engineering corridor and used for bearing the engineering constraint state in a corresponding section, and a data structure of the minimum damage unit object comprises a section space identifier, a line sampling change sequence segment corresponding to the section and a section engineering constraint state field.
4. The mine ecological restoration planning method based on three-dimensional modeling according to claim 3 is characterized in that in S2, the mutation event object is an event identification object generated based on a constraint violation corresponding relation between a minimum damage unit object and a linear engineering planning constraint set and used for representing a local engineering mutation situation of engineering constraint violation in the minimum damage unit object, a data structure of the mutation event object comprises a corresponding minimum damage unit object identification, an engineering constraint violation type identification and a mutation state field, and the construction method of the mutation event object is specifically characterized in that for each minimum damage unit object, whether a line sampling change sequence in a corresponding section violates constraint conditions in the linear engineering planning constraint set or not is judged, and when constraint violation exists, the mutation event object which is bound with the minimum damage unit object one by one is generated.
5. The mine ecological restoration planning method based on three-dimensional modeling is characterized in that S3, a line sampling change fragment is a sequence fragment which is intercepted from a line sampling change sequence and is consistent with a minimum damage unit object section space identifier corresponding to a mutation event object, a feasibility evidence packet is a data set formed by structurally integrating the line sampling change fragment according to an engineering constraint violation type of the mutation event object and is used for representing space morphological characteristics and constraint state information of engineering constraint violations in the corresponding minimum damage unit object section, and the method for structurally integrating the line sampling change fragment to generate the feasibility evidence packet is characterized in that based on the engineering constraint violation type recorded in the mutation event object, a change sequence field corresponding to the constraint violation type is extracted from the line sampling change fragment, and the extracted change sequence field is packaged together with the section space identifier and the engineering constraint violation type identifier to generate the feasibility evidence packet corresponding to the mutation event object one by one.
6. The mine ecological restoration planning method based on three-dimensional modeling according to claim 5 is characterized in that in S3, the minimum intervention action kernel object is an intervention action parameter set generated for a sudden change event object in a section range of a minimum destruction unit object and used for limiting engineering intervention actions executed in the section range, and the method for generating the minimum intervention action kernel object by combining a line sampling change segment with a linear engineering planning constraint set is characterized in that constraint condition parameters corresponding to the engineering constraint violation type in the linear engineering planning constraint set are extracted based on the line sampling change segment and the engineering constraint violation type recorded in a feasibility evidence packet, and an intervention action parameter set corresponding to the constraint condition parameters is generated in a section space identification limiting range of the minimum destruction unit object, so that the minimum intervention action kernel object corresponding to the minimum destruction unit object one by one is formed.
7. The mine ecological restoration planning method based on three-dimensional modeling according to claim 6 is characterized in that in S3, a local intervention verification loop is defined as a verification processing path within the action range of a minimum destruction unit object section, the verification processing path is used for verifying that constraint satisfaction of a minimum intervention action kernel object in a corresponding section is achieved, the elimination state of a mutation event object is a state identifier used for representing whether engineering constraint violation still exists in the corresponding mutation event object, the method for locally verifying the minimum intervention action kernel object to judge the elimination state of the mutation event object is that intervention action parameters corresponding to the minimum intervention action kernel object are applied to a line sampling change segment within the limit range of the section space identifier of the minimum destruction unit object, the applied section constraint state is re-judged according to a linear engineering planning constraint set, and when the judgment result indicates that the corresponding section does not exist engineering constraint violation any more, the elimination state identifier of the mutation event object is generated.
8. The mine ecological restoration planning method based on three-dimensional modeling is characterized in that in S4, the minimum intervention action kernel object corresponding to the verification result set is written back to a mutation dominant dynamic three-dimensional model layer, specifically, the minimum intervention action kernel object with the elimination state identification in the verification result set being met is written into the mutation dominant dynamic three-dimensional model layer, the section engineering constraint state field of the minimum destruction unit object corresponding to the minimum intervention action kernel object and the mutation state field of the mutation event object are updated, parameterization reconstruction processing is carried out on a linear engineering planning constraint set based on the updated mutation dominant dynamic three-dimensional model layer, specifically, in the range of action of the section of the minimum destruction unit object, the intervention action parameters corresponding to the written minimum intervention action kernel object are mapped into engineering constraint parameter adjustment amounts, and engineering parameterization adjustment results corresponding to section space identification one by one are formed, so that a linear engineering planning data set is generated.
9. A mine ecological restoration planning system based on three-dimensional modeling, comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the mine ecological restoration planning method based on three-dimensional modeling as set forth in any one of claims 1-8.

Description

Mine ecological restoration planning method and system based on three-dimensional modeling Technical Field The invention relates to the technical field of mine ecological restoration and three-dimensional modeling, in particular to a mine ecological restoration planning method and system based on three-dimensional modeling. Background In the mine ecological restoration planning process, system analysis is usually required to be carried out on the topography, engineering facilities and surrounding environment of the abandoned mine so as to determine engineering layout schemes such as road, drainage, slope remediation and landscape restoration; in the prior art, the three-dimensional modeling method is mainly used for carrying out geometric reconstruction and visual expression on the current mine topography, and the planning stage calculates indexes such as gradient, length, elevation change and the like based on the three-dimensional model so as to generate a planning scheme of mine ecological restoration and matched engineering; Firstly, the existing three-dimensional modeling results are often focused on reflecting the whole gradient and the whole fluctuation condition when being used for terrain analysis, and the conditions of water accumulation, backflow or micro-subsidence which cannot be constructed, short-distance counter-slope, step edge fluctuation and the like are directly caused in actual construction for the length of only one meter, so that the problems of difficulty in timely and clearly identifying the model, and the fact that the lines which seem to meet the continuous downhill or gradient control requirements in the three-dimensional model are caused in the field implementation process; secondly, when the ecological restoration and linear engineering planning scheme is generated based on the three-dimensional model, when a local section which cannot meet engineering requirements through simple adjustment of trend or gradient parameters exists objectively in a line, the existing planning generation mode can only carry out temporary remedy through integral line diversion or relying on manual experience, and a scheme which only carries out small-section range processing on the local section is difficult to directly form in a planning stage, so that the planning scheme is repeatedly modified in the implementation process, and rework is frequent in a construction stage. Disclosure of Invention The invention aims to provide a mine ecological restoration planning method and system based on three-dimensional modeling, which are used for solving the problem that systematic deviation exists between a three-dimensional modeling result and the practical implementation of linear engineering in the background technology. In order to achieve the purpose, the technical scheme of the invention is that the mine ecological restoration planning method based on three-dimensional modeling comprises the following steps: S1, acquiring a mine space basic data set, constructing a three-dimensional terrain surface model, loading a linear engineering planning constraint set to the three-dimensional terrain surface model, establishing an engineering constraint function relation, and constructing a mutation dominant dynamic three-dimensional model layer based on the three-dimensional terrain surface model and the linear engineering planning constraint set; S2, generating a line sampling change sequence in the mutation leading dynamic three-dimensional model layer along the engineering corridor direction based on the engineering constraint action relation, performing comparison analysis on the line sampling change sequence and the engineering constraint action relation to construct a minimum damage unit object, generating a mutation event object corresponding to the minimum damage unit object, and writing the minimum damage unit object and the mutation event object into the mutation leading dynamic three-dimensional model layer; In the S2, the minimum damage unit object is a section unit which is divided along the direction of an engineering corridor and used for representing the constraint state of local terrain, and the abrupt change event object is an event identification object of the minimum damage unit object, wherein the event identification object is in the condition of engineering constraint violation; S3, extracting a line sampling change segment positioned by a mutation event object from a mutation leading dynamic three-dimensional model layer, carrying out structural collection on the line sampling change segment to generate a feasibility evidence packet, and generating a minimum intervention action kernel object which is in one-to-one correspondence with a minimum destruction unit object by combining a linear engineering programming constraint set; In the step S3, the minimum intervention action kernel object is an intervention action set for eliminating the corresponding mutation event object in the section