“整体支护”是一个新的概念。我国煤矿有很多采煤工作面使用金属摩擦支柱,其绞接顶梁是沿走向成直线连接,一般4～5根为一行,摩擦支柱沿倾向成排,一梁一柱。工作面在最大控顶距时有4～5排支柱。每一根支柱是单体的,孤立的,分散的。这种支护方式的优点是架拆方便,抗顶板平面 “Overall support” is a new concept. Coal mines in our country have many coal mining face using metal friction pillars, which are connected to the top of the beam along the line into a straight line, usually 4 to 5 for his party, along the tendency of friction pillars in a row, a beam of a column. Face when the maximum control of the roof 4 to 5 rows of pillars. Each pillar is monolithic, isolated, and scattered. The advantage of this kind of support mode is that it is easy to dismantle and dismantle, and the anti-roof plane