综采工作面整体三维空间直线度评估研究

打开文本图片集

中图分类号：TD632 文献标志码：A

DOI：10.13272/j.issn.1671-251x.2025050076

Abstract：The existing straightness evaluation methods for fully mechanized mining faces adopt planar straightness，describing straightness through informationfromasingle pieceof equipment suchasahydraulic support or ascraper conveyor，without considering external factors or the relative relationships among equipment. Asaresult，theycannot accuratelyand comprehensively reflect the actual straightness of a fully mechanized mining face under real working conditions.To address these issues，an overall three-dimensional spatial straightness evaluation method for fully mechanized mining faceswas proposed.In three-dimensional space， based on a thre-level coordinate system，the straightness of a single piece of fuly mechanized equipment was evaluated using the degreeof deviationbetween the trajectoryofboth thescraper conveyorand hydraulic support group and their own straightnessbaseline.On this basis，the evaluation of overall three-dimensional spatial straightness of the fully mechanized mining face was conducted by integrating the curved coal seam surface， equipment deviation，and advancement errors of the floating connection mechanism. Compared with twodimensional planar straightness， the proposed method based on three-dimensional spatial straightness reduced errors and efectively eliminated the distortion effect caused by planar projection.The use of overall equipment straightness efectively solved the problem that the straightness of a single piece of equipment could not represent the overall traightness ofthe fully mechanized mining face. By considering the coupling relationship between he coal seam and the equipment and the lateral movement of the scraper conveyor，the straightness calculation and evaluation became closer to the actual working conditions，significantly improving the accuracy of straightness evaluation. The experimental results showed that the straightness evaluation results obtained by the proposed method were close to those obtained using the standard deviation method，verifying its accuracy.Inadition， through multi-aspect deviation evaluation， the factors that may affect straightness at a specific moment could be dynamically analyzed and adjusted in real time.

Key words： fully mechanized mining face； fully mechanized equipment; three-dimensional spatial straightness; overall equipment straightness; overall spatial straightness

0引言

综采工作面智能化是煤炭工业高质量发展的核心战略[1-3]，而综采工作面整体空间直线度直接关系到智能化目标的实现程度[4]。（剩余13615字）