Comparison and improvement of blasting damage models for rock

HU Ying-guo; LU Wen-bo; CHEN Ming; YAN Peng; ZHOU Chuang-bing

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Comparison and improvement of blasting damage models for rock

更新时间：2026-06-25

- Comparison and improvement of blasting damage models for rock
- Vol. 33, Issue 11, (2012)
- 作者机构：
  
  1. 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072
  2. 武汉大学水工岩石力学教育部重点实验室,武汉,430072
- 作者简介：
- 基金信息：
- DOI：
  CLC： O383.1
- Online First：14 November 2012，
  
  Published：2012
- 稿件说明：
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HU Ying-guo, LU Wen-bo, CHEN Ming, et al. Comparison and improvement of blasting damage models for rock[J]. 2012, 33(11).
DOI：

HU Ying-guo, LU Wen-bo, CHEN Ming, et al. Comparison and improvement of blasting damage models for rock[J]. 2012, 33(11). DOI：

摘要

归纳了目前应用较为广泛的爆破损伤模型关于损伤变量的定义方法，基于FORTRAN与LS-DYNA自定义接口，将5种典型的爆破损伤模型成功导入LS-DYNA。根据具体的工程实例，对5种爆破损伤模型计算的精确性进行了对比计算和验证。结果表明，KUS模型与RFPA模型对应的结果与实测值更接近。选取计算结果较为准确的KUS模型进行改进，考虑压缩损伤，并修正了宏观弹性常数的确定方法，建立了拉压损伤模型，并对该模型的计算精确性进行验证，结果表明，该拉压损伤模型可以更好地定量描述岩体爆破损伤范围。

Abstract

Several variables of different damage models are listed and compared. Based on a specific project

the accuracy of five blasting damage models which are widely used are tested and compared through the user subroutine interface of LS-DYNA. The results show that the calculated values of KUS and RFPA models are more close to the measured values than other blasting models. Based on the KUS model

considering the compression damage

a modified method to determine the macroscopic elastic parameters is put forward; and then a new tension-compression damage model is established. The accuracy of the new tension-compression damage model is verified. The results show that the new tension-compression damage model can describe the damage effect better.

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