Experimental study on the measurement of dynamic penetration test hammer impacting energy by force-velocity method and force square method

SHEN Zhi-ping; LIU Hui; FU Jun-yi; SUN Xiu-dong

doi:10.16285/j.rsm.2022.0049

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Experimental study on the measurement of dynamic penetration test hammer impacting energy by force-velocity method and force square method

更新时间：2026-06-25

- Experimental study on the measurement of dynamic penetration test hammer impacting energy by force-velocity method and force square method
- Vol. 43, Issue 11, Pages: 3127-3134(2022)
- 作者机构：
  
  贵州正业工程技术投资有限公司,贵州,贵阳,550001
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2022.0049
  CLC： TU41
- Online First：29 November 2022，
  
  Published：2022
- 稿件说明：
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SHEN Zhi-ping, LIU Hui, FU Jun-yi, et al. Experimental study on the measurement of dynamic penetration test hammer impacting energy by force-velocity method and force square method[J]. 2022, 43(11): 3127-3134.
DOI：

SHEN Zhi-ping, LIU Hui, FU Jun-yi, et al. Experimental study on the measurement of dynamic penetration test hammer impacting energy by force-velocity method and force square method[J]. 2022, 43(11): 3127-3134. DOI： 10.16285/j.rsm.2022.0049.

摘要

动力触探指标修正、试验稳定性、锤击数转化关系与有效锤击能密切相关。在探杆杆顶处和探头处安装应变片和加速度传感器，量测不同探杆长度下的重型、超重型动力触探锤击能。结果表明：当探杆中单个探杆较短、接头数多时，使用积分域为（0、2 / ）的力量平方法（F2法）计算所得探杆锤击能与实际锤击能相差较大（为探杆长度，为波的传播速度）。由于原位试验时干扰因素过多，力量速度法（FV法）选取首个极值和F2法选取锤击轴力首次穿过0点时作为锤击能量的积分结束时间计算锤击能更为合理。随着探杆长度的增大，达到探头处的锤击能量呈线性减小。3、5、8、11 m杆长下的重型和超重型锤击数转化系数分别为2.285、2.160、2.440、2.810，与超重型和重型的总势能比基本一致。

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