岩土破损演化理论(I)：破损空间

›› 2005, Vol. 26 ›› Issue (4): 513-519.

岩土破损演化理论(I)：破损空间

党发宁^1,2

1.西安理工大学岩土工程研究所, 西安 710048；2.中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室，兰州 730000

收稿日期:2004-01-04 出版日期:2005-04-09 发布日期:2013-12-19
作者简介:党发宁，男，1962年生，博士，教授，博士生导师，主要从事计算力学和岩土工程数值分析方面的研究
基金资助:
国家自然科学基金资助项目(No.10372078)和陕西省教育厅专项科研计划项目(No.01JK139)。

Damage-fracture evolution theory of rock and soil(I): damage-fracture space

DANG Fa-ning^1,2

1. Resarch Institute of Geotechnical Engineering, Xi'an University of Technology, Xi’an 710048,China; 2. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

Received:2004-01-04 Online:2005-04-09 Published:2013-12-19

摘要/Abstract

摘要： 指出当前利用CT数研究岩土力学的所有方法为观察研究，浪费了宝贵的CT定量化信息。利用CT数定义了岩样某点的完整度和破损度。根据完整度和破损度的水平以及集合论定义了水平完整域、水平破损域和( — )截理，利用测度论精确度量它们的大小，在此基础上建立了岩土介质完整空间和破损空间的概念，为利用CT数开展岩土介质力学性质定量分析开创了新途径。如果将水平由细观值逐渐放大到宏观值，则该方法适应于宏观岩土力学，实现了宏观力学与细观力学的统一描述，实现了连续介质力学与多孔或裂隙介质力学的统一描述。

关键词: 破损度；水平破损域；( &mdash, )截理；测度；破损空间

Abstract: This article points out each of the current analytical methods used in rock and soil mechanics through CT number research avail of observation, wasting the precious quantitative information of CT datum. Utilizing the CT number, the perfect degree and the damage-fracture degree of a point inside the rock sample are defined; the level perfect field, the level damage-fracture field and the ( — )level intercepted section are defined according to the level perfect degree and the level damage-fracture degree and the set theory; the size of the level perfect field, the level damage-fracture field and the( — )level intercepted section can be accurately calculated avail of the measure theory; based on these conceptions of the rock and soil media perfect space and damage-fracture space are established, paving a new way for the quantitative analysis of the rock and soil mechanics by means of the CT datum. If the level is magnified from the mesomechanics value to the macroscopic one, this method is suitable for the macroscopic geotechnical mechanics, realizing the unified description of the macroscopic mechanics and the mesomechanics, the unified description of the continuum mechanics and porous media or crannied media mechanics comes true, too.

Key words: damage-fracture degree, level damage-fracture field, ( &mdash, )level intercepted section, measure, damage-fracture space

中图分类号:

TU 452

党发宁 . 岩土破损演化理论(I)：破损空间[J]. , 2005, 26(4): 513-519.

DANG Fa-ning . Damage-fracture evolution theory of rock and soil(I): damage-fracture space[J]. , 2005, 26(4): 513-519.

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