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综放工作面瓦斯分布实测数据可视化研究 被引量:4

Visualization of Actual Measurement Data of Gas Distribution in Fully Mechanized Caving Face
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摘要 为了提高综放工作面瓦斯分布研究中实测数据的可读性和瓦斯分布场的完整性,以同忻煤矿8309工作面为研究背景,在现场合理测定保证数据有效的条件下,提出了运用基于最小二乘法立方插值算法的可视化技术对实测数据进行可视化处理。结果表明:最小二乘法立方插值算法实现了综放工作面瓦斯分布实测数据的可视化,补充了现场测定数据的不足,提高了测定数据的可读性,使综放工作面瓦斯分布场的变化特征更为全面直观。工作面瓦斯分布特征主要表现为沿风流向逐渐增加,沿煤壁-采空区方向瓦斯先减少后增加,煤壁和采空区侧未布点区域的瓦斯体积分数更高,变化更加明显。 In order to improve the readability of the measured data and the integrity of the gas distribution field in the study of gas distribution in the fully mechanized caving face, taking the 8309 working face of Tongxin Coal Mine as the research background, the visualization technique based on the cubic interpolation algorithm of least square method is proposed to process the measured data visually under the condition that the measured data is valid. The results show that least square cubic interpolation algorithm realizes visualization of measured data of gas distribution in fully mechanized caving face, supplements the lack of on-site measurement data, improves readability of measurement data, makes the change characteristics of the gas distribution field of the fully mechanized caving face more comprehensive and intuitive. The distribution characteristics of gas on the working face mainly show that gas gradually increases along the air flow direction, decreases first and then increases along the direction of coal wall-goaf, and the gas volume fraction in the area of undistributed points on the side of coal wall and goaf is higher and the change is more obvious.
作者 杜春宁 李杰 宁德义 姜文忠 DU Chunning;LI Jie;NING Deyi;JIANG Wenzhong(China Coal Research Institute,Beijing 100013,China;China Coal Technology and Engineering Group Shenyang Research Institute,Fushun 113122,China;State Key Laboratory of Coal Mine Safety Technology,Fushun 113122,China)
出处 《煤矿安全》 CAS 北大核心 2019年第11期10-13,共4页 Safety in Coal Mines
关键词 综放工作面 瓦斯分布场 最小二乘法 立方插值 可视化 fully mechanized caving face gas distribution field least square method cubic
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