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用超声波测试井巷围岩松动圈的原理、方法及现场实测表明，声测方法、理论依据可靠，实际测试结果应用在支护设计中，具有较好的经济效益。
The principle, method and field measurements of the surrounding rock rocking circle of the roadway with ultrasonic waves show that the acoustic measurement method and the theoretical basis are reliable, and the actual test results are used in the support design and have good economic benefits.