摘要
岩体在未进行巷道开凿之前,任何一处的岩石都受到上下、前后、左右岩石的挤压。岩体中的任何一处的岩石都不可能发生变形、移动或破坏。此时岩石的状态为原始平衡状态。地压的大小决定于巷道围岩的性质、巷道的形状和规格、开凿巷道的时间长短等因素。研究地压,对于设计巷道的形状、规格、位置、支护方法,以及安全生产、降低掘进费用都具有十分重要的意义。
Rock in the tunnel have not been cut before any of a rock have been up and down, around, around the rock squeeze. Rock in any of a deformation of rocks can occur, move or destroy. At this point the state of rock for the original balance. Pressure to decide the size of the surrounding rock in the nature of the shape and specifica- tions of the tunnel, cut the length of the tunnel, and so on. Study pressure, the design of the shape of the tunnel, specifications, location, support, as well as production safety and reduce the cost of driving is of great significance.
出处
《煤炭技术》
CAS
北大核心
2009年第7期172-173,共2页
Coal Technology
关键词
巷道
周边
自然平衡拱
压力
roadway
surrounding
natural balance arch
pressure
