The broad-based concept of roof abscission layer is put forward, the mostly for ms and influence factors of roof abscission layer in bolting support subway are analyzed, the monitoring approaches o 提出了广义顶板离层的概念,对锚杆支护巷道顶板离层的主要形式和影响因素进行了分析,并介绍了顶板离层的监测方法及其应用.
abscission
[ noun ]
shedding of flowers and leaves and fruit following formation of scar tissue in a plant
<noun.process>
the act of cutting something off
<noun.act>
Abscission \Ab*scis"sion\, n. [L. abscissio. See {Abscind}.] 1. The act or process of cutting off. ``Not to be cured without the abscission of a member.'' --Jer. Taylor.
2. The state of being cut off. --Sir T. Browne.
3. (Rhet.) A figure of speech employed when a speaker having begun to say a thing stops abruptly: thus, ``He is a man of so much honor and candor, and of such generosity -- but I need say no more.''