一种参数非定常的软岩非线性黏弹塑性蠕变模型

来源 :城市地下空间与地质灾害防治技术论坛暨第八届江苏省岩土力学与工程学术会议 | 被引量 : 0次 | 上传用户：jamesleehp1111

【摘要】

：

将黏弹塑性体(NVPB模型)和Maxwell蠕变模型串联,并考虑蠕变过程中岩石弹性模量随时间的弱化,提出了一种新的非定常非线性黏弹塑性蠕变本构模型,通过泥岩蠕变试验数据对该非定常非线性蠕变模型的参数进行了辨识.将该蠕变模型的计算结果和试验数据进行了对比,证明了本文所建立的非定常非线性黏弹塑性蠕变模型的正确性与合理性.

【作者】

：

刘开云薛永涛周辉

【机构】

：

北京交通大学土木建筑工程学院,北京,100044 中国科学院武汉岩土力学研究所,湖北武汉4300

【出处】

：

城市地下空间与地质灾害防治技术论坛暨第八届江苏省岩土力学与工程学术会议

【发表日期】

：

2017年3期

【关键词】

：

岩石力学蠕变模型粘弹塑本构非定常参数

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

Quantitative Analysis of Burden of Infectious Diarrhea Associated with Floods in Northwest of Anhui

Background:Persistent and heavy rainfall in the upper and middle Huaihe River of China brought about severe floods during the end of June and July 2007.However,there has been no assessment on the asso

会议

A Mixed Method to Evaluate Burden of Malaria Due to Flooding and Waterlogging in Mengcheng County,Ch

Background:Malaria is a highly climate-sensitive vector-borne infectious disease that still represents a significant public health problem in Huaihe River Basin.However,little comprehensive informatio

会议

Infectious Diseases and Tropical Cyclones in Southeast China

Southeast China is frequently hit by tropical cyclones(TCs)with significant economic and health burdens each year.However,there is a lack of understanding of what infectious diseases could be affected

会议

tropical cycloneinfectious diseasesimpactChina

Perception,Knowledge and Behaviors Related to Typhoon:A Cross Sectional Study among Rural Residents

(1)The objective of this study was to assess the risk perceptions,attitudes,knowledge,and behaviors related to typhoon among rural residents in Zhejiang province of China.A cross-sectional study was c

会议

typhoon disasterrisk perceptionattitudeknowledgebehaviorrural residents

Impacts of Different Grades of Tropical Cyclones on Infectious Diarrhea in Guangdong,2005-2011

Objective Guangdong province is one of the most vulnerable provinces to tropical cyclones in China.Most prior studies concentrated on the relationship between tropical cyclones and injuries and mortal

会议

Impacts of Tropical Cyclones and Accompanying Precipitation on Infectious Diarrhea in Cyclone Landin

multicollinearity.A multivariate logistic regression model was used to estimate the odds ratios(ORs)and the 95%confidence intervals(CIs).Results:For all typhoons studied,the greatest impacts on bacill

会议

tropical cycloneprecipitationinfectious diarrheabacillary dysenteryrisk fact

Influence of planting patterns on fluoroquinolone residues in the soil of an intensive vegetable cul

Recent studies have demonstrated the persistence of antibiotics in soil,especially in areas of vegetable culti-vation.However,there are very few studies of the influence of planting regimes on the lev

会议

Antibiotic residueSpatial stratificationFluoroquinoloneIntensive vegetable cu

Analysis of a Community-based Intervention to Reduce Heat-related Illness during Heat Waves in Liche

Objective To reduce health-related threats of heat waves,interventions have been implemented in many parts of the world.However,there is a lack of higher-level evidence concerning the intervention eff

会议

EffectivenessInterventionQuasi-experimentalHeat wavesDifference-in-differenc

A Cross-Sectional Study of Heat Wave-Related Knowledge,Attitude,and Practice among the Public in the

Knowledge,attitude,and practice(KAP)are three key components for reducing the adverse health impacts of heat waves.However,research in eastern China regarding this is scarce.The present study aimed to

会议

knowledgeattitudepracticeheat wavesChinacross-sectional study

泡沫混凝土单轴压缩下声发射特征试验研究

为了探究泡沫混凝土的单轴压缩下的内部损伤演变规律,对2种不同密度的泡沫混凝土试样进行了单轴受压试验,并利用声发射技术对试验全过程进行了动态监测,获得了表征泡沫混凝土损伤演化过程的典型声发射事件累计数曲线、声发射事件率、能率曲线以及事件定位演化图.结果显示:不同密度泡沫混凝土都要经历压密阶段、弹性阶段、塑性阶段以及峰后破坏阶段.塑性阶段之前声发射事件累计、事件率和能率值都相对很低,而在峰后破坏阶段事

会议

泡沫混凝土单轴压缩损伤演化声发射特征

一种参数非定常的软岩非线性黏弹塑性蠕变模型

其他学术论文