摘要：【中文】本发明公开了一种拔桩方法及拔桩系统，拔桩方法包括以下步骤：确定出桩体的位置；基于桩体的位置将外筒下沉，使桩体套设于外筒；清除外筒和桩体之间的砂石；拔出桩体。该拔桩系统能够采用前述的拔桩方法进行拔桩。该拔桩方法，在拔出桩体之前，对桩体和外筒的内壁之间的砂石进行清理，桩体周围的砂石被清除，从而大大降低了砂石对桩体拔出的阻碍作用，避免拔出过程出现断桩的情况；同时，外筒又保证了外筒以外区域的砂石或土体的稳定性，保证了施工安全；另外，拔桩可靠性高，保证了正常的工期。 【EN】The invention discloses a pile pulling method and a pile pulling system, wherein the pile pulling method comprises the following steps: determining the position of the pile body; sinking the outer cylinder based on the position of the pile body to enable the pile body to be sleeved on the outer cylinder; removing sand and stones between the outer cylinder and the pile body; and pulling out the pile body. The pile pulling system can adopt the pile pulling method for pile pulling. According to the pile pulling method, before the pile body is pulled out, the sand and stone between the pile body and the inner wall of the outer cylinder are cleaned, and the sand and stone around the pile body are removed, so that the blocking effect of the sand and stone on the pulling out of the pile body is greatly reduced, and the situation of pile breakage in the pulling out process is avoided; meanwhile, the outer barrel also ensures the stability of the sand and stone or soil mass in the area outside the outer barrel, and ensures the construction safety; in addition, pile pulling reliability is high, and normal construction period is guaranteed.