小煤柱护巷是工作面上风巷普遍采用的一种布置方式。
Applying small pillar to protecting roadway is a wide used layout in mining roadway.
高应力区的小煤柱已充分预发育裂隙，且水平位移大，应力水平降低。
Small coal pillar in high stress area has pre-developed splits and large horizontal displacement, and its stress concentration degree is lower.
加长孤岛综放工作面长度，护巷大煤柱和小煤柱的支承压力均减小，可以减小护巷煤柱宽度。
Lengthening the width of isolated fully mechanized top coal caving face would reduce the abutment pressures for both wide and small coal pillars, and the coal pillar width could be reduced.
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