坝基开挖中,声波测试技术作为简易手段可快速评价岩体质量。以某水电站为例,结合现场勘查,通过声波测试,揭示岩体风化程度,爆破松弛带和岩体质量。结果表明,岩体随深度增加受风化影响渐小,深部岩体几乎不受风化影响,岩体质量较高;利用声波波速对不同深度岩体进行的等级分界,为工程施工和防护措施提供了依据。 In the excavation of dam foundation, the acoustic testing technology can be used as a simple means to quickly evaluate the quality of rock mass. Take a hydropower station as an example, combined with on-site exploration, through the sound wave test to reveal the weathering degree of rock mass, blasting relaxation zone and rockmass quality. The results show that the rock mass is less affected by the weathering as the depth increases, the rock masses in the deep are hardly affected by weathering, and the quality of the rock mass is relatively high. The use of sonic velocity to demarcate the rock mass at different depths provides the engineering construction and protection measures in accordance with.