【摘要】 介绍了巷道(隧道)地下工程围岩松动圈支护理论并以此为依据确定了锚杆支护参数的方法.工程实践表明,用巷道围岩松动圈支护理论确定锚杆支护参数,支护效果好,又降低了工程造价,加快了施工速度,具有良好的推广价值.更多还原

【Abstract】 Introduction surrounding rock loosing circle theory and application of the theory make sure bolt support parameter.The example of engineering proved to be the method of being highly cost effective.The method can quickens the speed of construct.It has wide application in Engineering.更多还原