CAJ | 학술논문

针对我国多煤层条带开采的实际情况，提出了煤层错动系数的概念。利用FLAC3D 数值模拟软件，系统地研究了多煤层条带开采时，上下煤层错动系数的大小对上下条带保护煤柱应力、中间岩体应力以及地表移动变形的影响规律，分别给出了相应的函数关系式，并指出了在实际多煤层条带开采时，极限煤层错动系数的求取方法。研究成果对于指导多煤层条带开采工作面设计具有十分重要的理论和现实意义。
침대아국다매층조대개채적실제정황，제출료매층착동계수적개념。이용FLAC3D 수치모의연건，계통지연구료다매층조대개채시，상하매층착동계수적대소대상하조대보호매주응력、중간암체응력이급지표이동변형적영향규률，분별급출료상응적함수관계식，병지출료재실제다매층조대개채시，겁한매층착동계수적구취방법。연구성과대우지도다매층조대개채공작면설계구유십분중요적이론화현실의의。
In view of the actual situation of multi-coal seam strip mining in China,the concept of coal dislocation coeffi-cient is put forward. Based on the FLAC3D numerical simulation software,the influencing laws of different coal dislocation coef-ficients on the stress of upper and lower bands protection coal pillar,the stress of intermediate rock and surface movement de-formation in multi-coal seam strip mining were studied systematically. The reason for the influencing law is analyzed,and the function relations were given. The calculating method of ultimate coal dislocation coefficient in multi-coal seam strip mining was pointed out. The research results have important theoretical and practical significance for the coal face design of multi-coal seam strip mining.