摘要
提出了一种新型桥梁竖向泄水管用以解决桥梁泄水管处渗漏的病害问题。在多孔介质非饱和渗流理论的基础上以有限元软件ABAQUS对新型、普通泄水管周围混凝土进行模拟得出其渗流场分布规律,结果证明新型泄水管能够有效防止桥梁竖向渗流。
A new type of bridge vertical drain pipe is proposed to solve the leakage problem of bridge drain pipe. On the basis of unsaturated seepage theory of porous media,ABAQUS is used to simulate the seepage field distribution of concrete around the new and ordinary drainage pipes. The results show that the new drainage pipes can effectively prevent the vertical seepage of bridges.
引文
[1]JTG/T D33-2012,公路排水设计规范[S].
[2]万剑平,张亮,罗杰.关于桥面表面排水若干问题的探讨[J].中南公路工程,2004(1):40-41,54.
[3]金玉泉.桥梁的病害及灾害[D].上海:同济大学,2006.
[4]仵彦卿.多孔介质污染物迁移动力学[M].上海:上海交通大学出版社,2007.
[5]李春秋.干湿交替下表层混凝土中水分与离子传输过程研究[D].北京:清华大学,2009.
[6]张庆章,顾祥林,张伟平,等.混凝土中毛细压力-饱和度关系模型[J].同济大学学报(自然科学版),2012,40(12):1753-1759.
[7]Nguyen H V,Durso D F.Absorption of water by fiber webs:an illustration of diffusion transportation[J].Proceed.technica Assoc.of the Pulp&Paper Industry,1983(2):35-37.
[8]Neuman S P.Saturated-unsaturated seepage by finiteelements[J].Proc ASCE HY,1973,99(12):2233-2250.
[9]张林洪,王苏达,吴培关,等.沥青路面结构的渗透性能测试研究[J].中南公路工程,2005(3):10-14.
[10]徐宝维.混凝土抗渗性能及检验方法研究[D].兰州:兰州理工大学,2007.