以克罗地亚MS6.4地震为例检验震前应力集中现象

来源 :防灾减灾学报 | 被引量 : 0次 | 上传用户：linxiong12

【摘要】

：

为检验大震发生之前是否有应力集中现象,本研究以2020年克罗地亚MS6.4地震及其序列为例,采用比较地震序列的震源机制之间最小空间旋转角的方法来研究应力变化关系.最终发现,主震发生前的一段时间内,该地区发生的不同地震之间的震源机制中心解有趋近主震震源机制中心解的趋势;主震之后,余震的震源机制和主震震源机制之间的差别逐渐增大,并离散开来.此变化趋势一方面是对“应力集中和应变能释放”假说的印证,另一方面则间接说明了该地区的应力分布.由于此次大地震的发生而进行了局部调整,致使局部应力集中趋于平缓,该地区的区域构

【作者】

：

孔华万永革

【机构】

：

防灾科技学院,河北三河 065201;河北省地震动力学重点实验室,河北三河 065201

【出处】

：

防灾减灾学报

【发表日期】

：

2021年4期

【关键词】

：

克罗地亚地震震源机制震源机制中心解最小空间旋转角

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

Characterization of a Multi-responsive Magnetic Graphene Oxide Nanocomposite Hydrogel and Its Applic

Nanocomposite hydrogels are one of the most important types of biomaterials which can be used in many different applications such as drug delivery and tissue engineering.Incorporation of nanoparticles within a hydrogel matrix can provide unique characteri

期刊

Nanocomposite hydrogelCarboxymethyl celluloseGraphene oxideDoxorubicinDrug d

中国高等教育自信的维度

建设高等教育强国是一种自信的表达.面对多重世界一流大学排行榜上的名次,尽管中国大学的名次不如一些国家,但中国对建设自己的世界一流大学充满自信.自信来自对中国高等教育多维度的理性分析与审视:从历史基因与历史时空来看,中国有着深厚的高等教育文化基因;从发展速度与体量来看,中国高等教育取得了快速的发展,承载了国家、人们的期盼;从发展道路来看,道路自信奠基和坚定了高等教育自信;从现代大学制度来看,中国高等教育正在按照高等教育规律提升现代化治理能力和水平,注重内涵建设,稳步高质量发展.

期刊

中国高等教育自信维度内涵建设

The Effect of Trifluoroacetic Acid on Molecular Weight Determination of Polyesters:An in Situ NMR In

Due to the poor solubility of aromatic polyesters in common organic solvents,trifluoroacetic acid is usually used as a co-solvent to increase their solubility for characterizations.However,only few studies have reported the side reactions induced by it.We

期刊

PolyestersNMR spectroscopyTrifluoroacetic acidMolecular weight

Intelligent Surfaces Thermally Switchable between the Highly Rough and Entirely Smooth States

Reversible switching from a highly rough surface to another entirely smooth surface under external stimuli is crucial for intelligent materials applied in the fields of anti-fogging,self-cleaning,oil-water separation and biotechnology.In this work,a therm

期刊

Intelligent surfaceLiquid crystal elastomerSwitchable topological structure

Reactive TiO2 Nanoparticles Compatibilized PLLA/PBSU Blends:Fully Biodegradable Polymer Composites w

The fully biodegradable polymer blends remain challenges for the application due to their undesirable comprehensive performance.Herein,remarkable combination of superior mechanical performance,bacterial resistance,and controllable degradability is realize

期刊

Reactive TiO2 nanoparticlesPLLA/PBSU blend compositesCompatibilizationPhotode

Micro-Macro Scale Relationship in Creep Deformation of Ultra High Molecular Weight Polyethylene

Macroscopic and microscale creep deformations of UHMWPE were investigated by using in situ SAXS.A methodology for the measurement of the local creep deformation of inter-lamellar amorphous phase has been proposed.The local strain of inter-lamellar amorpho

期刊

Ultra-high molecular weight polyethyleneCreepSmall angle X-ray scatteringMicr

Liquid Crystalline Microdroplets of Graphene Oxide via Microfluidics

Study of stable liquid crystal (LC) microdroplets is of great significance for LC dynamics in confined space or at topological surface.However,the fabrication of LC microdroplets with diverse shape without ionic gelation agents still remains challenging d

期刊

Graphene oxideLiquid crystalMicrodropletsMicrofluidics

Kinetic Pattern Formation with Intermolecular Interactions:A Modified Brusselator Model

In this work,we modify the traditional Brusselator model to incorporate the intermolecular interactions,based on which a systematic study is performed on the pattern formation mediated by chemical reaction and phase separation.It is found that if the chem

期刊

Brusselator modelRegular solutionPhase separation

A Constitutive Model Describing Molecular Configuration Evolution and Transient Rheological Behavior

Entanglement network is an important structural feature in concentrated polymer solutions and polymer melts,which has a great influence on the transient rheological behavior and molecular configuration evolution.However,the existing constitutive models ha

期刊

Molecular configurationPolymer solutionsTransient theologyDumbbell model

基于灰色关联层次分析法的灾害应急物流方案选择

为了降低突发灾害事件给国家和人民带来的损失,我们必须以最短的时间、最简洁的流程、最快的方式为灾害应对行动提供应急物资,保障灾区恢复工作的快速开展.通过运用灰色关联层次分析法,结合实际事例,对应急物流方案进行最优选择,保证灾区灾后救灾物资的及时供应,尽量降低突发灾害事件造成的损失.

期刊

突发灾害事件应急物流灰色关联层次分析法

以克罗地亚MS6.4地震为例检验震前应力集中现象

与本文相关的学术论文