随着炸药管制愈发严格，为解决在超前地质预报工作中使用非炸药震源的难题，采用电火花震源与可控冲击震源在宝林隧洞系统地开展超前地质预报震源试验，验证各自适应性，论述各自优劣。电火花震源试验表明： 1）电火花震源具有激发稳定、起跳一致性好的优点，有利于超前地质预报数据处理工作； 2）电火花震源产生的是弹性形变，对围岩破坏性较小，可在同一激发孔多次激发，利于补炮，能有效保证地震记录质量； 3）在通常情况下，40 kJ电火花震源足以满足地震波法超前地质预报的需求，探测距离可达100 m。可控冲击震源试验表明： 1）表面撞击类震源应采用横波进行预报； 2）作为表面撞击震源，可控冲击震源能量可控，运输便利，能量百倍于锤击； 3）在完整、坚硬围岩条件下，可替代炸药，探测距离达100 m。

The nonexplosive sources are commonlyused in the advance geological prediction of tunnel. The spark source and controllable impact source are used to conduct advance geological prediction test in the Baolin tunnel, to verify the adaptability of the sources and discuss the advantages and disadvantages. The spark source test results show that: (1) The spark source has the advantages of stable excitation and good consistency of takeoff, which is beneficial to the data processing of geological prediction in advance. (2) The spark source will cause more elastic wave than deformation, which has little damage to the surrounding rock. It can be excited in the same excitation hole for many times, which is conducive to the blasting and can effectively ensure the quality of seismic records. (3) In the case of general condition, 40 kJ of spark source is sufficient to meet the demand of seismic wave method for advance geological prediction, and the detection distance can reach 100 m. The controllable shock source test results show that: (1) The shear wave should be used to predict the surface impact source. (2) As a surface impact source, the controllable impact source has controllable energy and convenient transportation, whose energy is 100 times that of hammer source. (3) Under the condition of complete and hard surrounding rocks, the detection distance can reach 100 m.