摘要
针对真空负压加固过程中引起的工程破坏、地下水位变化规律、土体渗流特性、渗流固结机理等问题进行了分析,发现这种方法虽已得到广泛的应用,但其理论研究远落后于工程实践,并存在很多争议。指出今后需要研究的关键工作,如负压状态下地下水位测试新技术、土体渗流固结作用机理、真空度有效传递范围、"0"压面变化规律等。
This paper presents a review of literature related to project failures, variations of groundwater level, seepage characteristics of soil bodies, and mechanisms of seepage-induced consolidation during the reinforcement process under vacuum negative pressures. Although the seepage-induced vacuum consolidation method has been widely applied, theoretical study of the method lags far behind its practical application and still involves some disputes. Some key issues for future research regarding the method are presented, including new technology for measurement of groundwater levels under negative pressures, mechanisms of seepage-induced consolidation of soil, the effective transmission range of the vacuum degree, and the variation regularity of the zero-pressure surface.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第2期115-121,共7页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金(51408187)
江苏省自然科学基金(BK20140850)
关键词
综述
真空预压
负压
渗流固结
地下水位
机理分析
review
vacuum preloading
negative pressure
seepage-induced consolidation
groundwater level
mechanism analysis
