Study on dynamic assessment method and application of rockburst risk under high crustal stresses in western Sichuan

被引：0

作者：

Wen Z. ^{[1
]}

Jiang Q. ^{[2
]}

Jiang Y. ^{[3
]}

Zhou H. ^{[4
]}

Li X. ^{[4
]}

Du W. ^{[2
]}

Wen J. ^{[5
]}

机构：

[1] College of Mining, Guizhou University, Guizhou, Guiyang

[2] State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province, the Ministry of Science and Technology, Shandong University of Science and Technology, Shandong, Qingdao

[3] Graduate School of Engineering, Nagasaki University, Nagasaki

[4] China Construction Railway Investment and Construction Group Co., Ltd., Beijing

[5] School of Civil Engineering, Qingdao University of Technology, Shandong, Qingdao

来源：

Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering | 2024年 / 43卷 / 02期

基金：

中国国家自然科学基金;

关键词：

dynamic-weight; high crustal stress; refinement level; risk assessment; rock mechanics; rockburst;

D O I：

10.13722/j.cnki.jrme.2023.0484

中图分类号：

学科分类号：

摘要：

A dynamic assessment method for rockburst risk in tunnels is proposed in response to the complex construction conditions of high ground stress tunnels, which make it difficult to assess rockburst risk. Fault tree analysis method is adopted to identify rockburst risk sources and to screen risk assessment indicators. Based on the risk matrix method, the values of probability level and severity level are expanded from discrete points to a range, refining the classification criteria and constructing a risk level assessment regional map. The dynamic assessment model for rockburst risk is established by introducing the concept of dynamic weight based on the static risk indicator system, thus achieving a finer classification of rockburst probability levels. Taking the Taoziping tunnel as an example, the implementation process of the dynamic assessment method for rockburst risk is discussed. After evaluation, the results are consistent with the actual construction situation. The research can provide theoretical and practical guidance for the risk management of actual tunnel engineering construction and have good application prospects. © 2024 Academia Sinica. All rights reserved.

引用

页码：308 / 321

页数：13

共 39 条

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