摘要
污水处理厂由于其所处地质条件及工艺布置的复杂性、地下环境的多变性,导致结构设计难度大。本文以浙江省某半地下高效沉淀预氧化综合池为例,研究地下复杂水池结构设计要点,重点对侧壁、底板等重要结构构件进行了定性分析,研究表明:(1)在侧壁尺寸一定时,加大走道板的悬挑长度及板厚可提高走道板对侧壁的约束作用;当走道板水平跨度与侧壁宽度之比为0.5时,走道板对侧壁的约束最大;侧壁侧壁长宽比为2.0~3.5时,走道板的约束作用最为明显;(2)对于桩基础的底板,无梁楼盖模型适用于嵌岩桩等桩端承载力较大的情形,而当桩基持力层较弱、桩端承载力较小时,弹性支座模型更为合理。
Due to the complexity of the geological conditions and process layout of the sewage treatment plant,and the variability of the underground environment,the structural design of the sewage treatment plant is complex.This paper takes semi-underground high efficiency precipitation and pre-oxidation integrated tank in Zhejiang Province as an example to study the key points of the structural design of the complex underground tank,focusing on the qualitative analysis of important structural components such as side walls and bottom plates.The research shows that:(1) When the size of the side walls is constant,increasing the cantilever length and thickness of the walkway board can improve the restraint effect of the walkway board on the side wall;when the ratio of the horizontal span of the walkway board to the width of the side wall is 0.5,the walkway board has the largest constraint on the side wall;When the length-to-width ratio of the wall is 2.0~3.5,the constraining effect of the walkway slab is the most obvious.(2) For the bottom plate of the pile foundation,the beamless floor model is suitable for cases when the bearing capacity of the pile end is large,such as rocksocketed piles.When the bearing layer of the pile foundation is weak and the bearing capacity of the pile end is small,the elastic bearing model is more suitable.
作者
李锦
Li Jin(Shanghai Urban Construction Design&Research Institute(Group)Co.,Ltd.,200125,China)
出处
《特种结构》
2022年第5期69-73,共5页
Special Structures
关键词
污水处理厂
结构设计
有限元模型
内力分析
计算分析
Sewage treatment plant
Structural design
Finite element model
Internal force analysis
Calculation and analysis
