摘要：【中文】本发明公开了一种减少采煤工作面回采末期回撤通道顶板压力的方法，包括以下步骤：第一步，确定采煤工作面基本顶最终断裂位置距回撤通道非生产帮的最佳距离；第二步，计算工作面与回撤通道之间间隔煤柱临界尺寸；第三步，确定停采等压位置；第四步，以第三步确定出的最佳停采等压位置为依据，当采煤工作面到达停采等压位置时，实施停采等压，工作面停采一段时间后出现顶板来压迹象，此后再将工作面继续推采至停采线，完成采煤作业。本发明可解决采煤工作面回采末期回撤通道顶板压力大的问题，通过对工作面回采末期合适位置处实施停采等压措施，改变基本顶周期来压位置，进而达到减少采煤工作面回采末期回撤通道顶板压力，保证采煤工作面顺利回撤。 【EN】The invention discloses a method for reducing the roof pressure of a withdrawal channel at the last stage of coal face extraction, which comprises the following steps: the method comprises the following steps that firstly, the optimal distance between the final fracture position of a basic roof of a coal face and a non-production side of a withdrawal passage is determined; secondly, calculating the critical dimension of the coal pillar between the working surface and the withdrawal passage; thirdly, determining the mining stop isobaric position; and fourthly, based on the optimal stop-mining isobaric position determined in the third step, when the coal face reaches the stop-mining isobaric position, stopping mining isobaric, indicating that the top plate pressure comes after the face stops mining for a period of time, and then continuously pushing the face to a stop-mining line to complete coal mining operation. The invention can solve the problem of high pressure of the top plate of the withdrawal channel at the last stage of the coal face recovery, and changes the basic top period pressure position by implementing a stopping constant pressure measure on the proper position at the last stage of the coal face recovery, thereby reducing the pressure of the top plate of the withdrawal channel at the last stage of the coal face recovery and ensuring the smooth withdrawal of the coal face.