预制内隔墙应用于地铁车站工程关键技术
李涛1费金新1徐小涛2杨政1
Key Technologies for the Application of Prefabricated Interior Partition Walls in Metro Station Projects
LI Tao1FEI Jinxin1XU Xiaotao2YANG Zheng1
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作者信息:1.中铁第四勘察设计院集团有限公司， 430063， 武汉
2.徐州地铁集团有限公司， 221018， 徐州
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Affiliation:1.China Railway Siyuan Survey and Design Group Co., Ltd., 430063, Wuhan, China
2.Xuzhou Metro Group Co., Ltd.,221018, Xuzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2025.05.013
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中图分类号/CLCN:U231.4
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栏目/Col:土建工程
摘要:
［目的］预制内隔墙在地铁车站工程中的应用尚不多见，有必要对预制内隔墙应用于地铁车站工程中的方案及关键技术进行研究。［方法］针对地铁车站工程的应用场景，提出了成套预制内隔墙结构应用体系，解决了预制内隔墙的配筋设计和拼接方案，确定了预制内隔墙的最优构造形式和结构安全厚度，研究了预制内隔墙的抗裂措施，并形成了全套关键技术。［结果及结论］在保证施工质量的前提下，预制条板的拼缝抗拉强度可以达到或超过其自身的抗拉强度；预制条板拼缝抗拉强度与拼缝砂浆的抗压强度没有直接关系。拼接错缝距离为900 mm的拼接条板试件平面外抗弯承载力较弱；拼接错缝距离为600 mm的拼接条板试件平面外抗弯承载能力较强。地铁车站的预制内隔墙材料建议采用陶粒混凝土空心隔墙条板。所提预制内隔墙成套关键技术已应用于徐州地铁3号线二期工程。
Abstracts:
［Objective］The application of prefabricated interior partition（hereinafter abbreviated as PIP）walls in metro station projects is still relatively rare. Therefore, it is necessary to study the schemes and key technologies for this application.［Method］In view of the application scenarios of metro station projects, a complete set of application systems for PIP wall structures is proposed. The reinforcement design and splicing schemes of PIP walls are solved, the optimal structural form and structurally safe thickness，as well as the crack-resistance measures of PIP walls are determined and studied, and a full set of key technologies is formed.［Result & Conclusion］Under the premise of ensuring construction quality, the tensile strength of the prefabricated panel joints can reach or exceed the panel inherent tensile strength. There is no direct relationship between the tensile strength of the prefabricated panel joints and the compressive strength of the joint mortar. The out-of-plane flexural bearing capacity of the spliced panel specimens with a staggered joint distance of 900 mm is relatively weak, while that of the spliced panel specimens with a staggered joint distance of 600 mm is relatively strong. It is recommended that the material of PIP walls in metro stations adopt ceramsite concrete hollow partition wall panels. The proposed complete set of key technologies for PIP walls has been applied to the second-phase project of Xuzhou Metro Line 3.
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