Response law of rock longitudinal wave velocity under compressive stress and engineering applicability correction method for rock mass integrity index

WEN Lei; CHI Hong-feng; LIU Da-jin; ZHANG Ai-wei; ZHANG Fei; YU Jun-hong; YANG Zhi-gang

doi:10.16285/j.rsm.2025.0742

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Response law of rock longitudinal wave velocity under compressive stress and engineering applicability correction method for rock mass integrity index

更新时间：2026-08-04

- Response law of rock longitudinal wave velocity under compressive stress and engineering applicability correction method for rock mass integrity index
- Vol. 47, Issue 7, (2026)
- 作者机构：
  
  1. ．石家庄铁道大学工程力学系,河北,石家庄,050043
  2. ．河北省工程力学基础学科研究中心,河北,石家庄,050043
  3. ．华北有色工程勘察院有限公司,河北,石家庄,050021
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2025.0742
  CLC：
- Online First：08 July 2026，
  
  Published：2026
- 稿件说明：
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WEN Lei, CHI Hong-feng, LIU Da-jin, et al. Response law of rock longitudinal wave velocity under compressive stress and engineering applicability correction method for rock mass integrity index[J]. 2026, 47(7).
DOI：

WEN Lei, CHI Hong-feng, LIU Da-jin, et al. Response law of rock longitudinal wave velocity under compressive stress and engineering applicability correction method for rock mass integrity index[J]. 2026, 47(7). DOI： 10.16285/j.rsm.2025.0742.

摘要

为探究三维压应力对岩石纵波波速的叠加影响规律，提升岩体完整性指数的测试精度，以砂岩相似材料为研究对象，测定压应力作用下试样轴向及横向纵波波速演化规律。结合裂纹体应变定性表征岩石内部裂隙的演化过程，揭示波速变化的物理本质。根据声弹性效应相关原理，建立岩块纵波波速在三维主应力耦合作用下的修正模型，获得校正三维地应力场条件下的岩体完整性指数方法。研究结果表明，在单轴压缩过程中，轴向及横向纵波波速的变化趋势与岩石破坏的4个阶段呈现相对应的规律性特征。微裂隙的闭合、萌生对于波传播路径的影响，岩石基质的压缩对于刚度的提升，以及塑性阶段新生微裂隙显著的各向异性特征等3个主要因素导致试样在不同阶段轴向和横向纵波波速出现相应变化规律。建立的岩块纵波波速修正模型以及岩体完整性指数修正方法具有比较广阔的工程适用性，不仅能显著提升岩体完整性指数的测量精度，还对工程岩体质量的精细化分级具有重要推动作用。

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