SIMULATION OF THE FRACTURE PROCESS IN ROCK WITH APPLICATION TO HYDROFRACTURING

被引：53

作者：

BOONE, TJ

WAWRZYNEK, PA

NGRAFFEA, AR

机构：

[1] Cornell Univ, Ithaca, NY, USA, Cornell Univ, Ithaca, NY, USA

来源：

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | 1986年 / 23卷 / 03期

关键词：

ELASTICITY - FRACTURE MECHANICS - HYDRAULICS;

D O I：

10.1016/0148-9062(86)90971-X

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Fracture problems in rock are commonly approached by two methods, strength of materials and linear elastic fracture mechanics (LEFM). The strength of materials approach predicts crack initiation. LEFM can be applied to propagation of cracks of known length, given minimum size restrictions. This paper presents a rational approach for the analysis of cracks in the transition range from initiation to the limit of LEFM applicability. The finite element method is employed to model rock structures with discrete cracks. Modelling of the crack process zone circumvents the limitation of LEFM. The essence of the method is the Dugdale-G. I. Barenblatt approach of the method.

引用

页码：255 / 265

页数：11