阅读说明：本技术 地下扩孔器 (Underground reamer ) 是由 史蒂芬·查尔斯·安吉 赛义德·阿利·黑达尔沙赫伊 于 2019-01-11 设计创作，主要内容包括：一种用于地下通道的扩孔器(1),包括：支撑壳体(3)和径向延伸的多个切削翼(11)；多个环段(13),其中每个环段(13)包括弓形环部分(15),其中多个环段(13)被组装形成稳定环(17),稳定环(17)桥接多个切削翼(11)的径向外边缘(12),其中稳定环(17)被紧固到至少一个切削翼(11)以对抗扩孔器(1)的径向移动。(A reamer (1) for subterranean passages, comprising: a support housing (3) and a plurality of radially extending cutting wings (11); a plurality of ring segments (13), wherein each ring segment (13) comprises an arcuate ring portion (15), wherein the plurality of ring segments (13) are assembled to form a stabilizing ring (17), the stabilizing ring (17) bridging radially outer edges (12) of the plurality of cutting wings (11), wherein the stabilizing ring (17) is secured to at least one cutting wing (11) to resist radial movement of the reamer (1).)