铁道科学与工程学报2016，Vol.13Issue(10)：2018-2026,9.
穿江隧道对堤防工程影响研究
Study on the influence of the cross-river tunnel to the embankment project
摘要
Abstract
In this article the numerical method is used to simulate the seepage stability and deformation of the embankment engineering through multiple operating condition. By analysing tunnel's cover thicknees, distance from the entrance of ramp to the embankment, relative distance from the major entrance to the embankment and ground water, the seepage stability and deformation of the embankment is studied. It turns out that within the scope of the levee engineering, with closer distance from cross-river tunnel ramp entrances and exits to dike and lower underground water level. The hydraulic grade will be greater, which has worse effect on the seepage stabili-ty of the dike. But the higher underground water level, the greater the settlement of levee crest and ground sur-face are, which has worse effect on settlement stabilization. The tunnel’ s cover thickness almost has no effect on the embankment’ s hydraulic gradient, but it does affect the embankment’ s settlement deformation. So that the cover thickness must be defined according to specifications or experience. With closer the distance from major en-trance to the embankment and lower ground water level, the hydraulic gradient will be greater, and the change of relative distance and groundwater level has little effect on settlement.关键词
穿江隧道/堤防/覆土厚度/距离/水力坡降/沉降Key words
cross-river tunnel/embankment/cover thickness/distance/hydraulic gradient/settlement分类
建筑与水利引用本文复制引用
张贵金,刘丽玲,陈宏任,李梦成..穿江隧道对堤防工程影响研究[J].铁道科学与工程学报,2016,13(10):2018-2026,9.基金项目
国家自然科学基金资助项目(51279019) （51279019）
