A non-linear creep model considering disturbance damage at different depths-Reference-Cited by-同舟云学术

A non-linear creep model considering disturbance damage at different depths

Published:2023 Issue:5 Part A Volume:27 Page:3863-3868
ISSN:0354-9836
Container-title:Thermal Science
language:en
Short-container-title:THERM SCI

Author:

Xiao Kun¹,Zhang Ze-Tian¹,Zha Er-Sheng²,Ren Li³,Xie Jing¹,Zhang Zhi-Long¹,Lou Chen-Di⁴,Ai Ting³

Affiliation:

1. State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, College of Water Resource and Hydro Power, Sichuan University, Chengdu, China

2. State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, National Institute of Clean-and-Low-Carbon Energy, Beijing, China + MOE Key Laboratory of Deep Earth Science and Engineering, Sichuan University, Chengdu, China

3. MOE Key Laboratory of Deep Earth Science and Engineering, Sichuan University, Chengdu, China

4. Institute for Disaster Management and Reconstruction,Sichuan University, Chengdu, China

Abstract

The rock creep model is an important part of the study of the time-dependent me?chanical behavior of rock. To ensure the safe excavation and long-term stable operation of deep engineering, a creep damage factor considering accelerating creep initiation time and creep failure time was proposed. By introducing the initial damage of excavation disturbances at different depths, a creep damage constitutive model for rocks at different depths considering disturbances was derived. This creep model has fewer parameters that are easy to obtain. It can better describe the accelerating creep characteristics of rock at different depths, especially for a more accurate description of the long-term creep mechanical behavior of deep rock.

Publisher

National Library of Serbia

Subject

Renewable Energy, Sustainability and the Environment

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