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饱和岩体热流固耦合数学模型研究

发表时间:2010-02-15  浏览量:1548  下载量:539
全部作者: 刘善利
作者单位: 长江南京航道工程局
摘 要: 在高压注水油采作业、冻土冷融及核废料库围岩等工程中,均可能会因地质环境条件(如内部温度、压力等)的剧烈变化而导致岩体介质密度发生改变。基于对此类岩体热流固(thermo�hydro�mechanical,THM)耦合问题的认识和研究,将液固介质的密度作为随温度、压力改变而变化的参数,将粘性耗散能热源项和温度梯度引起的流量变化流源项反映在THM耦合作用过程中,推导建立了考虑介质密度变化的饱和岩体THM耦合数学模型。
关 键 词: 水利工程;饱和岩体;耦合;热流固;数学模型
Title: Study on thermo hydro mechanical coupling mathematical model of saturated rocks
Author: LIU Shanli
Organization: Nanjing Changjiang Waterway Engineering Bureau
Abstract: In oil mining operations by water injection in high pressure, the permafrost by melting and freezing, and the nuclear waste project in rock mass, the density of rock medium will be changed when the geological environmental conditions (such as internal temperature, pressure, etc) have a more dramatic change. Based on understanding and studying the thermo�hydro�mechanical (THM) coupling problem of such rock mass, the density of liquid�solid medium is considered as a parameter changing with temperature and pressure, the heat source produced by the viscous dissipation and the stream flow source made by temperature gradient are reflected in the process of the THM coupling, then the saturated rocks coupling model is derived by considering the changes of medium density.
Key words: hydraulic engineering; saturated rocks; coupling; thermo�hydro�mechanical; mathematical model
发表期数: 2010年2月第3期
引用格式: 刘善利. 饱和岩体热流固耦合数学模型研究[J]. 中国科技论文在线精品论文,2010,3(3):314-319.
 
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