After analyzing work principle of grundomat hammer, this paper introduces using high-press hydraulic efflux in over-hard soil layer and using lime gun in soft soil layer (more water) to enhance adapting capability of grundomat hammer.

• 过对穿孔锤工作原理的分析，提出在过硬土层采用高压水射流，在软弱土层(含水量大土层)中使用粉喷技术的措施来提高穿孔锤的适应能力。