松软煤层复合顶板沿空巷道控制技术研究

STUDY ON THE CONTROLLING TECHNIQUE OF COMPLEX ROOF OF THE ROAD DRIVEN ALONG THE GOAF IN THE SOFT COAL STRATA

根据古汉山矿沿空巷道的地质特点,设计了新型的圆对棚支架,使支护体既具有一定的可缩性,又能承受强大的变形地压,维护巷道的稳定。在沿空巷道中进行的工业性试验取得了很好的支护效果。本支护形式正应用于古汉山煤巷沿空巷道的支护中。

According to the geology condition of the complex roof of the raod driven along the goaf in the Guhanshan coal mining.A kind of new support system called“circularly connected shed support”was designed.The support system has the character of shrink under some conditions.Meanwhile,this support system can support the large deformation.This support system was used at the complex roof of the road driven along the goaf in the soft coal strata;it can control the deformation of roadway and maintain the stability.The industrial test result indicates this support system can control the deformation and stability of the complex roof of the road driven along the goaf.