Fracture systems caused by mechanical indentation in medium or hard rocks

被引：1

作者：

Kou, SQ ^{[1
]}

机构：

[1] Lulea Univ Technol, Dept Civil & Min Engn, S-97187 Lulea, Sweden

来源：

FRACTURE AND STRENGTH OF SOLIDS, PTS 1 AND 2: PT 1: FRACTURE MECHANICS OF MATERIALS; PT 2: BEHAVIOR OF MATERIALS AND STRUCTURE | 1998年 / 145-9卷

关键词：

fracture; indentation; rock; mechanical excavation; similarity analysis; confinement;

D O I：

10.4028/www.scientific.net/KEM.145-149.941

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fracture systems in brittle rocks induced by indentation are presented. These are based on numerous experimental results. Two models have been developed to account for the experimental observations and elucidate the failure mechanisms induced during indentation. One model concerns the indentation depth and the other describes the length of radial/median cracks remaining in the rock. Equations deduced from both models correlate well with experimental results in the laboratory. Modification of the equations makes it possible to take the fracture systems in the deep underground into consideration. The equations can serve for general use in many medium or hard rocks with different dimensions of indenters.

引用

页码：941 / 946

页数：6