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复杂煤层地质力学高精度三维模拟模型的构建与应用

Construction and application of a high precision 3D simulation model for geomechanics of the complex coal seam.

作者信息

Zhao Lijuan, Zhang Meichen, Jin Xin

机构信息

School of Mechanical Engineering, Liaoning Technical University, Fuxin, China.

The State Key Lab of Mining Machinery Engineering of Coal Industry, Liaoning Technical University, Fuxin, China.

出版信息

Sci Rep. 2021 Nov 1;11(1):21374. doi: 10.1038/s41598-021-00709-5.

DOI:10.1038/s41598-021-00709-5
PMID:34725402
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8560928/
Abstract

The high-precision 3D simulation model for geomechanics of a complex coal seam is the necessary premise for the research on intelligent shearer and unmanned mining. However, at present, a simulation model for geomechanics of a complex coal seam generally has the problems of simplifying complex geological structures and low accuracy for structures. In order to meet the needs of a coal seam simulation model in the mining process of an intelligent shearer, it is necessary to optimize the simplified model of a coal seam. Therefore, based on a 3D simplified simulation model constructed with discrete element technology, the complex coal seam application plug-in was compiled with the help of an Application Program Interface. Moreover, according to the geological characteristics, new attributes were added to the structures to complete the construction of the model of a complex coal seam. Finally, the model was verified with laboratory experiments. The results showed that the high-precision 3D simulation model for geomechanics of a complex coal seam effectively improved the accuracy of the modeling. The real-time transmission and the real-time sharing of multi-source data were realized by considering the 3D simulation model for geomechanics of a complex coal seam as the core. Additionally, the purpose of the real-time sensing of the coal cutting state was achieved in order to lay the foundation for the realization of unmanned mining.

摘要

复杂煤层地质力学高精度三维模拟模型是智能采煤机及无人开采研究的必要前提。然而，目前复杂煤层地质力学模拟模型普遍存在复杂地质构造简化、构造精度低等问题。为满足智能采煤机开采过程中煤层模拟模型的需求，有必要对煤层简化模型进行优化。因此，基于离散元技术构建的三维简化模拟模型，借助应用程序接口编制了复杂煤层应用插件。此外，根据地质特征，在构造中添加新属性，完成复杂煤层模型构建。最后，通过实验室实验对模型进行验证。结果表明，复杂煤层地质力学高精度三维模拟模型有效提高了建模精度。以复杂煤层地质力学三维模拟模型为核心，实现了多源数据的实时传输与实时共享。此外，实现了煤岩切割状态实时感知的目的，为无人开采的实现奠定了基础。

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