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分节预制地下连续墙螺栓连接横向接头力学性能研究
黄大明1, 黄 栩1, 王坤为2, 胡大柱3, 赖世华1
摘 要

(1 中铁二院华东勘察设计有限责任公司, 杭州 310004;2 中铁四局集团有限公司上海分公司,上海 200070;3 上海应用技术大学城市建设与安全工程学院, 上海 201418)

摘要: 受运输及起吊能力的影响,单幅预制地下连续墙的长度和重量受到限制。 为推广预制地下连续墙的应用,对地下连续墙进行分节预制、现场拼装连接是一种有效可行的方案。 提出一种分节预制地下连续墙螺栓连接横向接头方案,利用 1:1 模型试验的方法对横向接头的承载力及刚度进行分析,并将提出的分节预制地下连续墙螺栓连接横向接头方案应用于某地铁车站附属基坑工程中。 模型试验及工程实践均证明,分节预制地下连续墙螺栓连接横向接头具有足够的强度与刚度,能够满足车站附属基坑开挖、回筑及结构使用和防水的要求,效果良好。

关键词: 分节预制地下连续墙;螺栓连接横向接头;承载力;刚度中图分类号:TU476+. 3 文献标志码:A 文章编号:1002 ̄848X(2022)01 ̄0138 ̄06

DOI:10. 19701 / j. jzjg. 20200288

Research on mechanical property of bolt connection transversal joint ofsegmental pre ̄cast diaphragm wall

HUANG Daming1, HUANG Xu1, WANG Kunwei2, HU Dazhu3, LAI Shihua1

(1 China Railway Eryuan Engineering Group East China Survey and Design Co., Ltd., Hangzhou 310004, China;2 Shanghai Engineering Co., Ltd. of China Tiesiju Civil Enginneering Group, Shanghai 200070, China;3 Collegeof Urban Construction and Safety Engineering, Shanghai Institute of Technology, Shanghai 201418, China)

Abstract:Affected by transportation and lifting capacity, the length and weight of a single prefabricated diaphragm wall arerestricted. In order to promote the application of prefabricated diaphragm walls, it is an effective and feasible plan to carryout segmental pre ̄cast and assembling segmentally on site for diaphragm wall. A plan for bolt connection transversal joint ofsegmental pre ̄cast diaphragm wall was put forward, and the bearing capacity and rigidity of the transverse joints wereanalyzed by 1:1 model test, and the proposed plan for bolt connection transversal joint of segmental pre ̄cast diaphragm wallwas applied in a subway station subsidiary foundation pit project. Model tests and engineering practice have proved that thebolt connection transversal joint of segmental pre ̄cast diaphragm wall has sufficient strength and rigidity to meet therequirements of the excavation of the subsidiary foundation pit of the station, rebuilding, structural use and waterproofing,and the effect is good.

Keywords:segmental pre ̄cast diaphragm wall;bolt connection transversal joint;bearing capacity;rigidity

第一作者:黄大明,硕士,高级工程师,主要从事城市轨道交通与地下工程、基坑工程的设计研究与咨询工作,Email:11241499@ qq. com。

[引用本文] 黄大明,黄栩,王坤为,等. 分节预制地下连续墙螺栓连接横向接头力学性能研究[ J]. 建筑结构,2022,52(1):138 ̄143,137. HUANG Daming,HUANG Xu,WANG Kunwei,et al. Research on mechanical property of boltconnection transversal joint of segmental pre ̄cast diaphragm wall[J]. Building Structure,2022,52(1):138 ̄143,137.

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