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煤矿为保持回采巷道稳定，防止漏风和相邻采空区瓦斯等有毒有害气体涌出，区段间采用留设保护煤柱护巷，煤柱宽度一般都在 30m 左右，对瓦斯治理和煤层自燃发火的防治起到了较好的效果，但是工作面顺槽矿压显现强烈，巷道变形、冒顶严重，影响着矿井的安全高效生产，且两工作面保安煤柱较宽，资源浪费严重，煤柱损失高达 10%~30%。针对以上实际情况，国内学者做了大量的研究，开展了综放工作面沿空掘巷技术研究，确保工作面防火以及瓦斯治理达到要求，同时，为实现小煤柱沿空掘巷提供安全可靠、经济合理、技术可行的方案，也做了一些特厚煤层综放工作面沿空掘巷的基础理论和关键技术的研究。“,”Coal mine to keep the roadway stable, to prevent the poisonous and harmful gas such as air leakage and adjacent goaf gas gushed out, this section between the protecting roadway protection coal pillar, the coal pillar width is generally around 30 m, the gas control and prevention of spontaneous combustion of coal seam has played a good effect, but face gateway mine pressure appear strong, roadway deformation and roof caving is severe, It affects the safe and efficient production of the mine, and the safety coal pillar of the two working faces is wide, and the waste of resources is serious, and the loss of coal pillar is up to 10% ~ 30%. In view of the above actual situation, domestic scholars have done a lot of research and carried out technical research on roadway excavation along gob in fully-mechanized caving working face to ensure that fire prevention and gas control of the working face meet the requirements. At the same time, a safe, reliable, economic, reasonable and technically feasible scheme is provided for the realization of roadway excavation along gob in small coal pillars. Some basic theories and key technologies of roadway excavation along gob in fully mechanized caving face of super thick coal seam have also been studied.