摘要
海堤填筑过程中,如何保证堤防地基稳定性是制定施工方案的关键。针对浙江舟山蚂蚁岛海堤工程,采用有限元强度折减法建模分析了典型断面的地基稳定性,结果表明:不同断面的稳定性安全系数与滑动类型不同;各断面的滑动破坏类型与地基土体性质、断面形状直接相关。同时,以典型断面的爆破地基处理方法对地基稳定性影响进行的研究表明,受爆破冲击荷载作用的海床极易发生滑动破坏。研究成果对海堤施工方案的制定提供了参考依据。
How to ensure the stability of embankment foundation is the key of construction project in seawall construction.In this paper,foundation stability of a typical cross-section of Mayidao costal levee is analyzed using strength reduction finite element method,which indicated that stability factor and sliding type of each section are different and that sliding failure type of each section is directly related to soil properties and section shape.At the same time,the influence on foundation stability is studied using blasting method based on a typical cross-section,and the result shows that seabed is easily damaged subjected to blasting impact load.These results provide a reference for the establishment of construction program of this coastal levee.
出处
《路基工程》
2011年第3期176-178,共3页
Subgrade Engineering
关键词
海堤
稳定性
有限元
coastal levee
stability
finite element
