岩石中封闭应力研究进展1)

封闭应力对岩石力学特性的影响不容忽视。从陈宗基提出岩石的封闭应力定义以来，研究的学者较少。本文从前人对封闭应力的定义出发，结合岩石力学发展现状，对封闭应力概念进行了拓展，提出了新的定义。将岩石力学研究中符合封闭应力定义的应力形式进行了归纳和分类，总结了各类封闭应力的变化规律及其计算公式，讨论了封闭应力与地下工程开挖之间存在的关联性及其影响的表达形式。本文对于推动封闭应力的深入研究具有积极意义，将为解释深部岩石力学特殊现象提供新的途径。

RESEARCH PROGRESS OF LOCKED-IN STRESS IN ROCKS1)

The influence of the locked-in stress on the rock mechanical properties cannot be ignored. Since Chen Zongji proposed the definition of the locked-in stress in rocks, there were very few related studies. Starting from the definition, combined with the current development of the rock mechanics, this paper expands the concept of the locked-in stress，in a new definition of the locked-in stress in rocks. The forms of the stress in accordance with the new definition of the locked-in stress in the rock mechanics research are classified. The variation law of various kinds of locked-in stress and its empirical formula are summarized. The correlation between the locked-in stress and the excavation of the underground engineering and its influence are discussed. This paper provides a new way to explain the special phenomenon of deep rock mechanics.