块状断裂对块岩体中 P 波传播影响的实验研究

IF 0.7 4区 工程技术 Q4 MINING & MINERAL PROCESSING
Wang Kaixing, Wu Bin, Pan Yishan, A. P. Khmelinin, A. I. Chanyshev
{"title":"块状断裂对块岩体中 P 波传播影响的实验研究","authors":"Wang Kaixing, Wu Bin, Pan Yishan, A. P. Khmelinin, A. I. Chanyshev","doi":"10.1134/s1062739124020030","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This article experimentally investigates the characteristics of <span>\\(P\\)</span>-wave propagation in block rock mass when blocks fracture transversely and longitudinally. The velocity of <span>\\(P\\)</span>-wave, rock block acceleration, kinetic energy, displacement response, and the time–frequency response of rock block were analyzed. The results show that when the rock block fractures, the <span>\\(P\\)</span>-wave velocity decreases, the acceleration response duration time increases, and the maximum acceleration and kinetic energy decrease. However, transverse fractures show a more evident decrease in the acceleration and kinetic energy near the fracture area, and longitudinal fractures show a more evident decrease in the displacement amplitude far from the fracture area. On transverse fractures, the dominant frequency of acceleration and kinetic energy leads to a low value near the fracture area, but the dominant frequency of displacement—to a high value. Longitudinal fracture leads to a dominant frequency of block response occurrence time delayed far from the fracture area.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"23 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Experimental Investigation of Block Fracture Influence on P-Wave Propagation in Block Rock Mass\",\"authors\":\"Wang Kaixing, Wu Bin, Pan Yishan, A. P. Khmelinin, A. I. Chanyshev\",\"doi\":\"10.1134/s1062739124020030\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h3 data-test=\\\"abstract-sub-heading\\\">Abstract</h3><p>This article experimentally investigates the characteristics of <span>\\\\(P\\\\)</span>-wave propagation in block rock mass when blocks fracture transversely and longitudinally. The velocity of <span>\\\\(P\\\\)</span>-wave, rock block acceleration, kinetic energy, displacement response, and the time–frequency response of rock block were analyzed. The results show that when the rock block fractures, the <span>\\\\(P\\\\)</span>-wave velocity decreases, the acceleration response duration time increases, and the maximum acceleration and kinetic energy decrease. However, transverse fractures show a more evident decrease in the acceleration and kinetic energy near the fracture area, and longitudinal fractures show a more evident decrease in the displacement amplitude far from the fracture area. On transverse fractures, the dominant frequency of acceleration and kinetic energy leads to a low value near the fracture area, but the dominant frequency of displacement—to a high value. Longitudinal fracture leads to a dominant frequency of block response occurrence time delayed far from the fracture area.</p>\",\"PeriodicalId\":16358,\"journal\":{\"name\":\"Journal of Mining Science\",\"volume\":\"23 1\",\"pages\":\"\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Mining Science\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1134/s1062739124020030\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MINING & MINERAL PROCESSING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mining Science","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1134/s1062739124020030","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MINING & MINERAL PROCESSING","Score":null,"Total":0}
引用次数: 0

摘要

摘要 本文通过实验研究了岩块横向和纵向断裂时\(P\)-波在块状岩体中的传播特征。分析了(P)波的速度、岩块加速度、动能、位移响应以及岩块的时频响应。结果表明,当岩体发生断裂时,波速降低,加速度响应持续时间增加,最大加速度和动能减小。不过,横向断裂在断裂区附近的加速度和动能下降更为明显,而纵向断裂在远离断裂区的地方位移振幅下降更为明显。在横向断裂上,加速度和动能的主导频率导致断裂区附近的数值较低,但位移的主导频率导致数值较高。纵向断裂导致远离断裂区域的块体响应发生时间延迟的主导频率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Experimental Investigation of Block Fracture Influence on P-Wave Propagation in Block Rock Mass

Experimental Investigation of Block Fracture Influence on P-Wave Propagation in Block Rock Mass

Abstract

This article experimentally investigates the characteristics of \(P\)-wave propagation in block rock mass when blocks fracture transversely and longitudinally. The velocity of \(P\)-wave, rock block acceleration, kinetic energy, displacement response, and the time–frequency response of rock block were analyzed. The results show that when the rock block fractures, the \(P\)-wave velocity decreases, the acceleration response duration time increases, and the maximum acceleration and kinetic energy decrease. However, transverse fractures show a more evident decrease in the acceleration and kinetic energy near the fracture area, and longitudinal fractures show a more evident decrease in the displacement amplitude far from the fracture area. On transverse fractures, the dominant frequency of acceleration and kinetic energy leads to a low value near the fracture area, but the dominant frequency of displacement—to a high value. Longitudinal fracture leads to a dominant frequency of block response occurrence time delayed far from the fracture area.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Mining Science
Journal of Mining Science 工程技术-矿业与矿物加工
CiteScore
1.70
自引率
25.00%
发文量
19
审稿时长
24 months
期刊介绍: The Journal reflects the current trends of development in fundamental and applied mining sciences. It publishes original articles on geomechanics and geoinformation science, investigation of relationships between global geodynamic processes and man-induced disasters, physical and mathematical modeling of rheological and wave processes in multiphase structural geological media, rock failure, analysis and synthesis of mechanisms, automatic machines, and robots, science of mining machines, creation of resource-saving and ecologically safe technologies of mineral mining, mine aerology and mine thermal physics, coal seam degassing, mechanisms for origination of spontaneous fires and methods for their extinction, mineral dressing, and bowel exploitation.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信