中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所2011年知识产出  > 期刊论文
题名: The earthquake precursor detected in a granular medium and a proposed model for the propagation of precursive stress-strain signal
作者: Lu, KQ ;  Hou, MY ;  Wang, Q ;  Peng, Z ;  Sun, W ;  Sun, XM ;  Wang, YY ;  Tong, XH ;  Jiang, ZH ;  Liu, JX
刊名: CHINESE SCIENCE BULLETIN
出版日期: 2011
卷号: 56, 期号:11, 页码:1071-1079
学科分类: Physics
通讯作者: Lu, KQ (reprint author), Chinese Acad Sci, Inst Phys, Key Lab Soft Matter Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
部门归属: [Lu KunQuan; Hou MeiYing; Wang Qiang; Peng Zheng] Chinese Acad Sci, Inst Phys, Key Lab Soft Matter Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China; [Sun Wei; Sun XiaoMing] Beijing Precis Technol Co Ltd, Beijing 100089, Peoples R China; [Wang YuYing; Tong XiaoHui] Earthquake Adm Liaoning Prov, Shenyang 110034, Peoples R China; [Jiang ZeHui] Harbin Inst Technol, Dept Appl Phys, Harbin 150001, Peoples R China; [Liu JiXing] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: A way to detect the seismic precursor in granular medium is described and a model of propagation for precursive stress-strain signals is proposed. A strain sensor buried in a sandpit is used to measure a seismic precursor signal. The signal has been investigated and confirmed to originate from a specific earthquake. A comparison of simulated and experimental signals indicates that the signal results from the strain in the earth's strata. Based on the behavioral characteristics of granular materials, an analysis of why this method can be so sensitive to the seismic strain signal is undertaken and a model for the propagation of this stress-strain signal is proposed. The Earth's lithosphere is formed of tectonic plates, faults and fault gouges at their boundaries. In the case of the quasi-static mechanics of seismic precursory stress-strain propagation, the crustal lithosphere should be treated as a large-scale granular system. During a seismogenic event, accumulated force generates the stick-slip motion of adjacent tectonic plates and incrementally pushes blocks farther apart through stick-slip shift. The shear force released through this plate displacement causes soil compression deformation. The discrete properties of the sand in the sandpit lead to the sensitive response of the sensor to the deformation signal which enables it to detect the seismic precursor. From the analysis of the mechanism of the stress-strain propagation in the lithosphere, an explanation is found for the lack of signal detection by sensors installed in rocks. The principles and method presented in this paper provide a new technique for investigating seismic precursors to shallow-source earthquakes.
资助者: Chinese Academy of Sciences [KJCX2-SW-W15, KKCX1-YW-03]; National Natural Science Foundation of China [10374111]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000289898600003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14382
Appears in Collections:理论物理所2011年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
The earthquake precursor detected in a granular medium and a proposed model for the propagation of precursive stress-strain signal.pdf(988KB)----开放获取View Download

Recommended Citation:
Lu, KQ,Hou, MY,Wang, Q,et al. The earthquake precursor detected in a granular medium and a proposed model for the propagation of precursive stress-strain signal[J]. CHINESE SCIENCE BULLETIN,2011,56(11):1071-1079.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Lu, KQ]'s Articles
 [Hou, MY]'s Articles
 [Wang, Q]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Lu, KQ]‘s Articles
 [Hou, MY]‘s Articles
 [Wang, Q]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: The earthquake precursor detected in a granular medium and a proposed model for the propagation of precursive stress-strain signal.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace