Mining analog simulation experiment modular model laying method

Abstract

The invention belongs to the technical field of mining similar simulation experiments, and particularly relates to a mining similar simulation experiment modular model laying method. The method mainly comprises the steps of designing a model structure and a module material, preparing a module material required by an experiment, assembling a similar simulation experiment stratum model, withdrawing a research area module to realize experiment simulation excavation, and optimizing module laying design according to an experiment result. According to the method, through standardized and modularized design, the limitation of a traditional experiment method is overcome, rapid building and flexible adjustment are achieved, the experiment efficiency and reliability are improved, and more effective experiment tools and technical supports are provided for research and application of mining engineering.

Description

Technical Field

[0001] The present invention belongs to the technical field of mining similarity simulation experiments, and particularly relates to a modular model laying method for mining similarity simulation experiments. Background Art

[0002] In mining engineering, similarity simulation experiments are an important means to study the process of mine exploitation and its impacts. Traditional mining similarity simulation experiments usually rely on large physical models and require layer-by-layer laying of similarity simulation materials in complex experimental devices. Although this method can achieve a certain simulation effect, there are many deficiencies in aspects such as model construction and experimental operation.

[0003] Due to the scale and complexity of the traditional simulation experiments, the models must be laid layer by layer according to the formation characteristics, usually requiring a large amount of time and resources to build the models. The relatively long period required for model laying further leads to changes in the physical and mechanical properties of the simulation materials during curing, greatly limiting the repeatability of the experiments.

[0004] For example, the Chinese patent with the publication number CN108120817A discloses a laying device and usage method for similarity simulation experiment materials, which solves the influence of knocking vibration on the laid rock strata, but still requires layer-by-layer laying, with a relatively long time required and poor repeatability. For example, the Chinese patent with the application number CN 118032460 A discloses a mining two-dimensional similarity simulation test intelligent and precise laying method and system. This system uses an intelligent control system to adjust the laying speed, thickness, compaction degree, etc., but still does not solve the change in the curing period caused by the too long laying time, and the model framework has no expandability and poor flexibility.

[0005] Therefore, in view of the above problems, a modular model laying method for mining similarity simulation experiments is proposed, aiming to overcome the limitations of traditional experimental methods through standardized and modular designs, achieve rapid construction and flexible adjustment, improve the efficiency and reliability of the experiments, and provide more effective experimental tools and technical support for the research and application of mining engineering. Summary of the Invention

[0006] The purpose of the present invention is to provide a modular model laying method for mining similarity simulation experiments, which adopts standardized and modular designs to achieve rapid construction and standard reproduction of mining similarity simulation experiments.

[0007] The present invention adopts the following technical solutions:

[0008] A modular model laying method for mining similarity simulation experiments includes the following steps:

[0009] Step 1: Design the model structure and modular materials according to the experimental purpose and requirements and the formation parameter characteristics of the site.

[0010] Step 2: Prepare the module materials required for the experiment;

[0011] Step 3: Assemble a similar simulation experiment formation model;

[0012] Step 4: Withdraw the modules in the research area to achieve experimental simulation excavation;

[0013] Step 5: Optimize the module laying design according to the experimental results.

[0014] Preferably, the design model structure and module materials in Step 1 include, but are not limited to, determining the length, width, and height of each simulated formation in the model structure; including, but not limited to, determining the module material, block length, width, and height in each simulated formation, and the module material includes wooden blocks, concrete, etc.

[0015] Preferably, the preparation of the module materials required for the experiment in Step 2 includes, but is not limited to, cutting and splicing the whole material according to the design requirements, and including, but not limited to, building with molds according to the design requirements.

[0016] Preferably, for the assembly of the similar simulation experiment formation model in Step 3, the model blocks need to be laid according to the structure design in Step 1, and an adhesive material is applied at the joints between the blocks.

[0017] Preferably, for the withdrawal of the modules in the research area in Step 4, the designed module blocks need to be withdrawn within the designed time according to the experimental purpose and requirements in Step 1. The specific method is as follows: Assume the simulated mining speed is v0, the similarity ratio is a, the withdrawal speed is v1, the block length is l, and the withdrawal time is t, then

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention realizes modular laying of mining similarity simulation experiments, improves the accuracy and reliability of the experiments, and enables the model to more accurately reflect the actual formation characteristics.

[0020] 2. The present invention uses modular blocks to realize model construction, improves the flexibility and repeatability of the experiments, and is convenient for adjusting the model structure according to different requirements.

[0021] 3. The present invention adopts a modular laying method, can simultaneously prepare a large number of different formation modules, and greatly improves the model laying efficiency compared with the traditional laying and maintenance methods. Description of the Drawings

[0022] To more clearly illustrate the technical solution of the present invention and make it easier to understand, the following briefly describes the drawings required for the implementation. Obviously, the following drawings are only some embodiments of the present invention, and these drawings are only for illustrative purposes and are not intended to limit the protection scope of the present invention.

[0023] Figure 1 is the method flowchart of the present invention

[0024] Figure 2 is the conceptual diagram of the laying model

[0025] Among them, 1 is different strata, and 2 is the different module sizes of different strata. Specific implementation mode

[0026] A modular model laying method for mining similarity simulation experiments in an embodiment of the present invention includes the following steps:

[0027] Step 1, the mining similarity simulation experiment simulates the influence of the longwall mining method on the overlying strata, studies the stratum stability, refers to the specific geological conditions of a certain mine, sets the similarity ratio, designs the stratum type, dip angle, and size, selects wooden blocks as module materials, and determines the size of the module unit body;

[0028] Step 2, divide the whole wooden board according to the unit body size determined in Step 1. Specifically, use professional cutting tools to ensure that the size of each module precisely meets the design requirements. Through this process, the module materials required for the experiment are prepared;

[0029] Step 3, in assembling the similarity simulation experiment stratum model, first place the bottom layer module, and then stack other modules layer by layer upward. After the module assembly, compact it, and sprinkle mica between the strata to enhance the adhesion and stability between the modules. This process ensures that the overall structure of the model can effectively simulate the characteristics of the actual strata;

[0030] Step 4, select the stratum module in a specific research area, and implement the simulated excavation operation according to the preset similarity ratio. During this process, the simulated excavation speed needs to be consistent with the actual mining situation;

[0031] Step 5, optimize the laying design of the modules according to the results obtained during the experiment. Specifically, analyze the experimental data, evaluate the performance of the modules under different conditions, and identify potential improvement points. Based on these analysis results, adjust the size, material, or laying method of the modules to improve the accuracy of the model and the effectiveness of the experiment.

[0032] The above are only the principles and preferred embodiments of the present invention.

[0033] Specifically, for the design model structure and module materials described in Step 1, the model is designed to be 200 cm in length, 20 cm in width, and 100 cm in height; the simulated material is determined to be wooden blocks, with different unit sizes. The block size of the coal body in the main research area is 2 cm in length, 1 cm in width, and 1 cm in height.

[0034] Specifically, for the module materials required for the preparation experiment described in Step 2, different types of wooden boards are selected, such as plywood, fiberboard, etc., and divided into standard unit sizes.

[0035] Specifically, for the assembly of the similar simulation experiment strata model described in Step 3, the simulated dip angle and strata changes are simulated during laying. Some strata are higher or lower than the average thickness. White latex is applied around the module unit bodies during assembly.

[0036] Specifically, for the withdrawal of the module in the research area described in Step 4, the specific calculation method of the withdrawal speed is as follows: Assume that the simulated mining speed is 4.8 m / d, the similarity ratio is 10, and the withdrawal speed should be 0.02 m / h. The length of the research unit body is 2 cm. Therefore, withdrawing one unit block per hour can achieve the simulated excavation.

[0037] The above is the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A modular model laying method for mining similarity simulation experiments, characterized in that It includes the following steps: Step 1: Design the model structure and module materials according to the experimental purpose and requirements as well as the formation parameter characteristics on site; Step 2: Prepare the module materials required for the experiment; Step 3: Assemble the similar simulation experimental formation model; Step 4: Withdraw the modules in the research area to achieve experimental simulation excavation; Step 5: Optimize the module laying design according to the experimental results.

2. The modular model laying method for mining similarity simulation experiments according to claim 1, wherein The design of the model structure and module materials in Step 1 includes, but is not limited to, determining the length, width, and height of each simulated formation in the model structure; including, but is not limited to, determining the module material, block length, width, and height in each simulated formation, and the module material includes wooden blocks, concrete, etc.

3. The modular model laying method for mining similarity simulation experiments according to claim 1, characterized in that, The preparation of the module materials required for the experiment in Step 2, the preparation method includes, but is not limited to, cutting and splicing the whole material according to the design requirements, including, but is not limited to, building with a mold according to the design requirements.

4. The modular model laying method for mining similarity simulation experiments according to claim 1, characterized in that, For the assembly of the similar simulation experimental formation model in Step 3, it is necessary to lay the model blocks according to the structure design described in Step 1, and apply an adhesive material at the joints between the blocks.

5. The method for laying a modular model in a mining similarity simulation experiment according to claim 1, characterized in that, The module of withdrawing the research area described in Step 4 needs to withdraw the designed module blocks within the designed time according to the experimental purpose and requirements described in Step 1. The specific method is as follows: Assume that the simulated mining speed is v0, the similarity ratio is a, the withdrawal speed is v1, the block length is l, and the withdrawal time is t. Then there is

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