《煤矿安全》1981年第一期刊出“超声波围岩裂隙探测仪及其在煤矿的应用”之后的4年来,该仪器在煤矿及金属矿的应用中有了新的发展。在中国矿业学院等应用单位取得了引人注目的科研成果,在东北工学院和莱芜铁矿等单位的“围岩稳定性的动态分级法”的重大科研成果中,被作为一项必不可少的测试手段。目前,该仪器应用有继续发展的趋势。超声波围岩裂隙探测仪(下称探测仪)的基本用途是探测锚喷支护巷道的围岩松动 In the first four years of “Coal Mine Safety” published in 1981, “Ultrasonic rock surrounding rock crack detector and its application in coal mines” four years later, the instrument in the coal and metal mining applications has been a new development. At the China Academy of Mining and other applications made remarkable achievements in scientific research, Northeast Institute of Technology and Laiwu Iron and other units of “dynamic classification of rock stability,” the major scientific research achievements, as an essential The test method. At present, the application of the instrument has continued to develop. The basic purpose of ultrasonic rock crack detector (hereinafter referred to as detector) is to detect the surrounding rock loosening