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分節(jié)預(yù)制地下連續(xù)墻螺栓連接橫向接頭力學(xué)性能研究
黃大明1, 黃 栩1, 王坤為2, 胡大柱3, 賴世華1
摘 要

(1 中鐵二院華東勘察設(shè)計(jì)有限責(zé)任公司, 杭州 310004;2 中鐵四局集團(tuán)有限公司上海分公司,上海 200070;3 上海應(yīng)用技術(shù)大學(xué)城市建設(shè)與安全工程學(xué)院, 上海 201418)

摘要: 受運(yùn)輸及起吊能力的影響,單幅預(yù)制地下連續(xù)墻的長度和重量受到限制。 為推廣預(yù)制地下連續(xù)墻的應(yīng)用,對地下連續(xù)墻進(jìn)行分節(jié)預(yù)制、現(xiàn)場拼裝連接是一種有效可行的方案。 提出一種分節(jié)預(yù)制地下連續(xù)墻螺栓連接橫向接頭方案,利用 1:1 模型試驗(yàn)的方法對橫向接頭的承載力及剛度進(jìn)行分析,并將提出的分節(jié)預(yù)制地下連續(xù)墻螺栓連接橫向接頭方案應(yīng)用于某地鐵車站附屬基坑工程中。 模型試驗(yàn)及工程實(shí)踐均證明,分節(jié)預(yù)制地下連續(xù)墻螺栓連接橫向接頭具有足夠的強(qiáng)度與剛度,能夠滿足車站附屬基坑開挖、回筑及結(jié)構(gòu)使用和防水的要求,效果良好。

關(guān)鍵詞: 分節(jié)預(yù)制地下連續(xù)墻;螺栓連接橫向接頭;承載力;剛度中圖分類號:TU476+. 3 文獻(xiàn)標(biāo)志碼:A 文章編號: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:黃大明,碩士,高級工程師,主要從事城市軌道交通與地下工程、基坑工程的設(shè)計(jì)研究與咨詢工作,Email:11241499@ qq. com。

[引用本文] 黃大明,黃栩,王坤為,等. 分節(jié)預(yù)制地下連續(xù)墻螺栓連接橫向接頭力學(xué)性能研究[ J]. 建筑結(jié)構(gòu),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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