Comparison and improvement of blasting damage models for rock

被引：0

作者：

Hu Ying-guo ^{[1
,2
]}

Lu Wen-bo ^{[1
,2
]}

Chen Ming ^{[1
,2
]}

Yan Peng ^{[1
,2
]}

Zhou Chuang-bing ^{[1
,2
]}

机构：

[1] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Hubei, Peoples R China

[2] Wuhan Univ, Minist Educ, Key Lab Rock Mech Hydraul Struct Engn, Wuhan 430072, Hubei, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2012年 / 33卷 / 11期

关键词：

damage zone; blasting damage model; comparing; tension-compression damage model;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

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.

引用

页码：3278 / 3284

页数：7