摘要
在刚性涵洞及刚性地基条件下,利用ANSYS有限元软件分析在箱涵洞顶两侧设置减载块(混凝土块体)对涵顶土压力的影响。研究表明:涵顶两侧的减载块,能够有效地改善涵洞洞顶受力情况,对涵洞顶板起到良好的减载效果;随减载块高度的加大,洞顶土压力系数直线下降。
Under the condition of rigid culverts and rigid foundation,adding concrete blocks to the culvert at the two sides of the top culvert,using ANSYS finite element software to do impact analysis of the concrete blocks about the earth pressure on the culvert,studies have shown that: adding concrete blocks can effectively improve the force condition of the culvert and can play a good load shedding effect for the culvert.The coefficient of vertical earth pressure on the top of the culvert plummets with the heightening of the concrete blocks.
出处
《山西水利科技》
2012年第1期64-65,76,共3页
Shanxi Hydrotechnics
关键词
涵洞
土压力
减载
有限元
culvert
earth pressure
load shedding
finite element
