摘要
吹填土由于其成分来源及沉积环境不同,性质千差万别。以天津海积软土为土质材料,模拟现场吹填环境,研究了吹填软土强度形成影响因素。试验表明,不同的压力及排水条件对吹填软土强度增长影响较大。当排水条件有利于土体中的水排出时,强度增长明显。上覆压力对土体强度增长的影响通过一定的排水条件得以实现,排水条件差和压力增大时,强度增长缓慢且很小,反之,强度增长快且绝对值大。
Because of different compositions and depositional environments, the natures of dredger fills are different. In this paper, Tianjin marine soft soil is used as material to simulate site environment to study the strength growth in soft dredger fill. Experiments show that the different conditions of pressure and drainage affect the growth of soft dredger fill greatly. When conditions are conducive to the drainage of water in soil, the growth of strength is significant. The effect on soil strength growth by overburden pressure is through some possible drainage; when drainage conditions are bad, and the pressure increased, the strength grows slowly and little; on the contrary, it grows faster and absolute value is large.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2011年第1期172-178,共7页
Rock and Soil Mechanics
基金
天津市科技发展计划项目(No.04311381)
天津市科技发展计划重点科技攻关项目(No.06YFSZSF04000)
科技创新能力与环境建设平台项目(No.06SYSYJC14900)
天津市科技创新专项基金项目(No.07FDZDSF02101-04)
关键词
吹填软土
屈服应力
排水条件
上覆压力
现场模拟
soft dredger fill
yield stress
drainage conditions
overburden pressure
site simulation
