[1]崔光耀,戴艾蒙,宁茂权,等.超大矩形顶管隧道新型弹性密封垫防水性能研究[J].高速铁路技术,2024,15(06):21-26,39.[doi:10.12098/j.issn.1674-8247.2024.06.004]
　CUI Guangyao DAI Aimeng NING Maoquan,JIANG Mengxin HAN Chi LIU Bingjie.Study on the Waterproof Performance of a Novel Elastic Sealing Gasket for Large Rectangular Jacked Tunnels[J].HIGH SPEED RAILWAY TECHNOLOGY,2024,15(06):21-26,39.[doi:10.12098/j.issn.1674-8247.2024.06.004]
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超大矩形顶管隧道新型弹性密封垫防水性能研究()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
15卷
期数:
2024年06期
页码:
21-26,39
栏目:
理论探索
出版日期:
2024-12-15

文章信息/Info

Title:
Study on the Waterproof Performance of a Novel Elastic Sealing Gasket for Large Rectangular Jacked Tunnels
文章编号:
1674-8247(2024)06-0021-06
作者:
崔光耀1; 戴艾蒙1; 宁茂权2; 3; 蒋梦新1; 韩驰1; 刘炳杰1
(1.北方工业大学, 北京 100144; 2.中铁第四勘察设计院集团有限公司, 武汉 430064; 3.海峡(福建)交通工程设计有限公司, 福州 350004)
Author(s):
CUI Guangyao1 DAI Aimeng1 NING Maoquan2;  3 JIANG Mengxin1 HAN Chi1 LIU Bingjie1
(1.North China University of Technology, Beijing 100144,China; 2.China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430064,China; 3.Haixia Traffic Engineering Design Co., Ltd., Fuzhou 350004,China)
关键词:
顶管隧道;  新型弹性密封垫;  防水性能;  接缝错动量;  接缝张开量
Keywords:
jacked tunnel;  novel elastic sealing gasket;  waterproof performance;  joint misalignment;  joint gap opening
分类号:
U25
DOI:
10.12098/j.issn.1674-8247.2024.06.004
文献标志码:
A
摘要:
为提高超大矩形顶管隧道管片接缝的防水性能,本文以福建莆田火车站地下通道工程为依托,提出一种新型内嵌钢片弹性密封垫,采用有限元分析软件ABAQUS,对不同张开度、错缝量下的无内嵌钢片弹性密封垫(工况1)、内嵌单层钢片弹性橡胶垫(工况2)、内嵌双层钢片弹性橡胶垫(工况3)的防水性能进行对比分析。结果表明:(1)无错缝量时,工况2、工况3防水性能均优于工况1,除测线1张开度0 ～2.4 mm、测线2张开度0～5 mm外,工况3防水性能均优于工况2;(2)施加错缝量时,除测线1位于错缝6 mm张开度0～2.3 mm、6.2～9.9 mm与错缝12 mm张开度1.6 ～2.8 mm时工况2防水性能低于工况1外,工况2、工况3防水性能均优于工况1,其中除错缝6 mm时测线2处工况3、工况2防水性能相近外,其余测线处工况3防水性能最优。综上所述,工况3的防水性能最优。研究结果可为隧道接缝防水提供参考。
Abstract:
To enhance the waterproofing performance of joint gaps in large rectangular jacked tunnels, this study took the underground passage of Putian Railway Station in Fujian Province as an example, and introduced a new type of elastic sealing gasket with embedded steel plate. By using the finite element analysis software ABAQUS, the waterproofing performance of three scenarios was comparatively analyzed: an elastic seal without embedded steel plates(Case 1), an elastic rubber gasket with a single layer of embedded steel plates(Case 2), and an elastic rubber gasket with double layers of embedded steel plates(Case 3), under varying degrees of joint gap openings and misalignments. The findings reveal:(1)Without any misalignment, the waterproofing performance of both Case 2 and Case 3 surpasses that of Case 1, except for when the opening of Test Line 1 is between 0 mm and 2.4 mm, and that of Test Line 2 is between 0 mm and 5 mm, where Case 3 outperforms Case 2.(2)Under applied misalignments, except for when Test Line 1 experiences a misalignment of 6 mm with openings between 0 mm and 2.3 mm and 6.2 mm to 9.9 mm, and misalignment of 12 mm with openings between 1.6 mm and 2.8 mm, where Case 2 shows inferior waterproofing compared to Case 1, Case 2 and Case 3 generally demonstrate better waterproofing than Case 1. Among these, except for the similarity in waterproofing performance between Case 3 and Case 2 at Test Line 2 under a 6 mm misalignment, Case 3 exhibits the best waterproofing across other test lines. Overall, Case 3 demonstrates the most favorable waterproofing performance. These results provide a reference for waterproofing measures in tunnel joints.

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备注/Memo

备注/Memo:
收稿日期:2023-05-25
作者简介:崔光耀(1983-),男,教授。
基金项目:中铁第四勘察设计院集团有限公司重点科研项目(2020K143); 北京市大学生创新创业训练计划项目(24XN139-248)
更新日期/Last Update: 2024-12-15