为检测水泥-尾砂充填体内部构造和力学性能,采用钻芯法从采场充填挡墙或相应部位施工覆盖整个采场的地质孔取样,使用SY-1型声波仪对样品进行声波测试,通过配套软件分析波形和频谱.结果表明:波速和动弹性力学指标的差距源自强度和疏密构造差异;虽不同充填体声波波速不同,但其声波波形和频谱成分基本相同;声波延时长、主频集中、频谱较简洁且振幅较高,反映出充填体内部夹杂、孔洞和空穴等缺陷少,结构较完整. In order to test the internal structure and mechanical properties of the cement-tailings filling body, the core hole sampling method was applied to fill the geological hole covering the entire stope with the retaining wall or the corresponding part by using the core-drilling method. The samples were sonicated with the SY- The waveforms and spectra were analyzed by the software, and the results showed that the difference of wave velocity and dynamic elasticity was originated from the difference of intensity and density structure. Although the wave velocity of different filling body was different, the waveform and spectrum of acoustic wave were basically the same. , The main frequency, the spectrum is more concise and the amplitude is higher, reflecting the inclusions inside the inclusion, holes and holes less defects, the structure is more complete.