基于多参数准则的深部地下工程岩爆倾向性评价方法研究

IF 0.8 Q4 ENGINEERING, CIVIL

Electronic Journal of Structural Engineering Pub Date : 2023-01-23 DOI:10.56748/ejse.233511

Fei Sun, Wenlong Wu, Zhi-jia Wang, Zhi-hua Liu, Zhu-wen Shao

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引用次数: 3

摘要

岩爆判据的研究是预测岩爆发生的关键。基于能量原理，建立了一种新的多参数岩爆准则。利用一些经典岩爆准则和新提出的RPC，验证了我国一些典型岩爆工程实例的准确性和适用性。研究结果表明：RPC综合考虑了围岩单元的各种应力状态，反映了岩爆孕育过程中的完整性因素、力学因素、脆性因素和储能因素。提出了无岩爆、弱岩爆、中岩爆和重岩爆四个等级的三个岩爆分级阈值（2、11和110）。RPC对岩爆的预测和评价与岩爆的实际情况基本一致，能够更好地反映深部隧道岩爆破坏的总体趋势。

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Research on rockburst proneness evaluation method of deep underground engineering based on multi-parameter criterion

The study of rockburst criterion is the key to predict the occurrence of rockburst. Based on the energy principle, a new multi-parameter rockburst criterion (RPC) were established. The accuracy and applicability of some typical rockburst engineering examples in China were verified by using some classical rockburst criteria and the newly proposed RPC. The research results show that: RPC comprehensively considers the various stress states of the surrounding rock mass unit, and reflects the integrity factors, mechanical factors, brittleness factors and energy storage factors in the process of rockburst inoculation. Three rockburst classification thresholds (2, 11 and 110) for four grades of none, weak, moderate and severe rockburst were proposed. The prediction and evaluation of rockburst by RPC is basically consistent with the actual situation of rockburst, which can better reflect the overall trend of rockburst failure in deep tunnels.

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来源期刊

Electronic Journal of Structural Engineering Engineering-Civil and Structural Engineering

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： The Electronic Journal of Structural Engineering (EJSE) is an international forum for the dissemination and discussion of leading edge research and practical applications in Structural Engineering. It comprises peer-reviewed technical papers, discussions and comments, and also news about conferences, workshops etc. in Structural Engineering. Original papers are invited from individuals involved in the field of structural engineering and construction. The areas of special interests include the following, but are not limited to: Analytical and design methods Bridges and High-rise Buildings Case studies and failure investigation Innovations in design and new technology New Construction Materials Performance of Structures Prefabrication Technology Repairs, Strengthening, and Maintenance Stability and Scaffolding Engineering Soil-structure interaction Standards and Codes of Practice Structural and solid mechanics Structural Safety and Reliability Testing Technologies Vibration, impact and structural dynamics Wind and earthquake engineering. EJSE is seeking original papers (research or state-of the art reviews) of the highest quality for consideration for publication. The papers will be published within 3 to 6 months. The papers are expected to make a significant contribution to the research and development activities of the academic and professional engineering community.