应力波扰动下结构面的应力量化及强度表征

doi:10.16285/j.rsm.2017.2444

›› 2018, Vol. 39 ›› Issue (8): 2844-2850.doi: 10.16285/j.rsm.2017.2444

应力波扰动下结构面的应力量化及强度表征

王斐笠，王述红，修占国

东北大学资源与土木工程学院，辽宁沈阳 110819

收稿日期:2017-12-08 出版日期:2018-08-11 发布日期:2018-09-02
通讯作者: 王述红，男，1969年生，博士，教授，博士生导师，主要从事岩体力学方面的教学和研究工作。E-mail: wangshuhong@mail.neu.edu.cn E-mail:wangfeili109@126.com
作者简介:王斐笠，女，1990年生，博士研究生，主要从事节理岩体动态损伤与断裂方面的学习和研究工作。
基金资助:
国家自然科学基金资助项目（No. 51474050，No. U1602232）；辽宁省高等学校优秀人才支持计划项目（No. LN2014006）；辽宁省自然科学基金项目（No. 20170540304，No. 20170520341）；硅酸盐建筑材料国家重点实验室（武汉理工大学）开放基金资助项目（No. SYSJJ2017-08）。

Method on stress quantification and strength characterization of rock structural plane under the disturbance of stress wave

WANG Fei-li, WANG Shu-hong, XIU Zhan-guo

School of Resource and Civil Engineering, Northeastern University, Shenyang, Liaoning 110819, China

Received:2017-12-08 Online:2018-08-11 Published:2018-09-02
Supported by:
This work was supported by the National Natural Science Foundation of China (51474050, U1602232), the Program for Liaoning Excellent Talents in University (LN2014006), the Natural Science Foundation of Liaoning Province (20170540304, 20170520341) and the State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology)(SYSJJ2017-08).

摘要/Abstract

摘要： 开挖利用和开发建设等人类工程活动，破坏了岩体原有的天然应力平衡状态，而结构面的存在进一步恶化了地质环境安全，所以，为了有效防治崩塌、滑坡等地质灾害的发生，有必要对扰动作用下结构面的应力状态和强度特性进行分析研究。将岩体所受扰动作用以应力形式量化，分析了扰动应力波在结构面中的传递过程并对其衰减特征进行了量化，同时建立了扰动作用下结构面应力分析模型。基于此，结合库仑-纳维叶准则，给出了扰动作用下结构面的强度分析准则，同时，实现了扰动作用对结构面强度的劣化效应分析并使用折减系数进行定量描述。该过程的实现为有效防治工程活动引起的地质灾害提供理论依据，给出了一种分析扰动作用下地质灾害诱发机制的新思路。

关键词: 应力波扰动, 结构面, 应力量化, 强度表征

Abstract: The original natural stress balance of the rock structure is destroyed by human engineering activities of excavation and construction, and the geological environment safety is deteriorated further by the existence of weak structural plane. Therefore, it is necessary to analyze the stress state and strength characteristics of rock structure under engineering disturbance to effectively control the occurrence of geological disasters such as collapse and landslide. In this paper, the disturbance process of the rock structure was quantified in the form of stress. The propagation of the stress wave in weak structure plane was analyzed and its attenuation characteristics were quantified. Also, the quantification expression of stress was given and the stress analysis model was established. Based on this, the criterion of strength analysis of rock structure under stress disturbance was deduced by the Coulomb-Navier criterion. At the same time, the damage effect of stress disturbance on the strength of rock structure was realized and the reduction coefficient was used to quantitatively describe it. The realization of this process provides a theoretical basis for effective prevention and control of geological disasters caused by engineering disturbance, and a new idea to analyze the induced mechanism of geological disasters under engineering disturbance is given.

Key words: disturbance of stress wave, rock structural plane, stress quantification, strength characterization

中图分类号:

TU 452

王斐笠，王述红，修占国. 应力波扰动下结构面的应力量化及强度表征[J]. , 2018, 39(8): 2844-2850.

WANG Fei-li, WANG Shu-hong, XIU Zhan-guo. Method on stress quantification and strength characterization of rock structural plane under the disturbance of stress wave[J]. , 2018, 39(8): 2844-2850.

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应力波扰动下结构面的应力量化及强度表征

Method on stress quantification and strength characterization of rock structural plane under the disturbance of stress wave

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