标题:
基于火柴棍模型的煤体迂曲度理论研究Theoretical Research on Tortuosity of Coal Based on the Matchstick Model
作者:
刘昂, 黄艳涛, 蒋一峰
关键字:
多孔介质, 煤体迂曲度, 初始迂曲度, Klinkenberg系数, 修正迂曲度Porous Media, Tortuosity of Coal, Initial Tortuosity, Klinkenberg Coefficient, Modified Tortuosity
期刊名称:
《Mine Engineering》, Vol.4 No.3, 2016-07-05
摘要:
为了更好的研究煤体孔裂隙结构特征以及求取相关表征参数，本文基于理想的火柴棍模型，结合达西定律和修正的泊谡叶方程，经过严格的理论推导，得到了适用于煤体的迂曲度理论表达式，并以初始迂曲度为参考推导了迂曲度的修正式，同时结合Klinkenberg系数给出了一种初始迂曲度的计算方法。研究结果为求取表征煤体孔裂隙特征的相关参数提供了可行的方法，具有一定积极意义。
In order to research the structure characteristics of pores and fissures and seek the related cha-racterization parameter of coal, this article based on the ideal matchstick model, combined the Darcy equation and the modified Poiseuille equation and deduced the theoretical expression of tortuosity applicable to coal through strict theoretical derivation. Then the modified expression of tortuosity was deduced in reference of the initial tortuosity, at the same time, we got a calculation method of initial tortuosity by combing the Klinkenberg coefficient. The research results provide a feasible method for calculating the related parameters representing the features of pores and fissures, and have positive effect.