T/CHTS 10020-2019 港珠澳大桥设计指南 第二分册：沉管隧道工程

团体标准

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港珠澳大桥设计指南�

第二分册�沉管隧道工程

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中国公路学会发布

作为国家标准化管理委员会、中国科学技术协会团体标准双试点单位，中国公路学会积极贯彻国

务院《深化标准化工作改革方案》(国发〔2015〕13号)的要求，立足交通运输行业公路交通领域，于2015

年6月正式启动团体标准工作。同时，中国公路学会标准工作得到了交通运输部的大力支持，并正式

写人交通运输部《交通运输标准化“十三五”发展规划》。

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准，促进行业技术进步，并打造中国公路学会标准品牌。

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中国公��路学会地址:北京市朝阳区安华路17号

电话:010一64288725��

网址:/��

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团体标准

港珠澳大桥设计指南�

第二分册:沉管隧道工程

GuidelinesforDesignofHongKong一Zhuhai一MacaoofDesignforGuidelinesBridge

Divisionl:ImmersedEngineeringTunnel���

T/CHTS0020一11920

主编单位:港珠澳大桥管理局

中交公路规划设计院有限公�����司

发布单位:中国公路学会

实施日期:2019年10月31日

‘民交通禽板社股份有限公司

北京�������

T/CHTS10020一2019

月IJ舀

本指南在总结港珠澳大桥沉管隧道设计及研究成果、施工��经验的基础上编制。

本指南按照《中国公路学会标准编写规则》(T/CHTS10001)的要求编写而成。本��指南共分15章，

主要技术内容包括总则，术语、符号和代号，基础资料，总体设计，管节结构设计，接头设计，抗震设计，

地基处理与基础设计，基槽与回填防护设计，防水设计，耐久性设计，施工监测与运营期健康监测，临时

工程设计，管节艇装设计，运营设施设计等。

本指南实施过程中，请将发现的问题和对指��南的意见、建议反馈至港珠澳大桥管理局(地址:广东

省珠海市横龙路368号;邮编:519000;联系电话:0756一3295080;电子邮箱:fl@)，供修订时

参考。

��本指南由港珠澳大桥管理局提出，受中国公路学会委托，由港珠澳大桥管理局负责具体解释工作。

主编单位:港珠澳大桥管理局、中交公路规划设计院有限公司��

主要起草人:方磊、吕勇刚、苏权科、张志刚、陈越、刘洪洲、吴泽��生、黄清飞、苏宗贤、王勇、闻禹、

李毅、王彦林、李贞新、鲁华英、张涛、许星、李宏哲、秦辉辉、姬海、李会驰、胡传鹏、毛幸全

主要审查人:胡滨、周海涛、陈韶章、沈永芳、王华牢、袁勇、魏立新、白云、蒋树屏、韩亚��楠

T/CHTS0020一20191

目次

·······················································⋯11总则···············································································································⋯⋯

2术语、符号和代号···，·······⋯⋯，’··········································································⋯⋯2

····················································⋯22.1术语·········································································································⋯⋯�

·······························，····················⋯42.2符号·······························································，·········································⋯⋯�

2.3代号·········································································································⋯⋯4�

3基础资料················································...··········，···········································⋯⋯6

3.1一般规定···································································································⋯⋯6�

3.2调查······························································································....··⋯⋯，.⋯6�

3.3测绘·········································································································⋯⋯7�

········.···········································⋯83.4勘察················..·······················································································⋯⋯�

·····················································一93.5地震···········································································································一�

3.6水文·······················································································...········.·..⋯⋯10�

3.7气象·································，····················，···············································⋯⋯10�

·······························.·····..····...⋯103.8航运及航道······························································..···········....········......⋯⋯�

3.9锚地及码头·······················································，···················.....······.......⋯⋯n�

态········································.······⋯n3.10环境与生态················································································.············⋯⋯�

体计························..··......·................⋯124总体设计·········，·，···································....·····............··................................⋯⋯

规·············································..·⋯124.1一般规定························································································.·....··⋯⋯�

4.2技术标准及指标·············································，·······················，·········........⋯⋯12�

4.3隧道位置······································································..··········⋯⋯，......·⋯⋯13�

4.4隧道平面······················································································....······⋯⋯13�

4.5隧道纵面·················································································.·..··········.⋯⋯14�

··············································⋯144.6隧道横断面·····························································································⋯⋯�

···········································..····⋯154.7岛上段····················································································.··...········.⋯⋯�

程····································....··...⋯巧4.8大型临时工程·······································································........····.......⋯⋯�

5管节结构设计·············，···············，························································，······...⋯⋯16

5.1一般规定································································································⋯⋯16�

5.2横断面设计···········································，·······························.·................⋯⋯16�

5.3纵向结构体系··············································································......······⋯⋯17�

型·············································⋯185.4管节结构选型··························································································⋯⋯�

···············································，⋯185.5结构计算·······························································································，⋯⋯�

5.6主体结构构造要求···············································································.....⋯⋯28�

计···················································⋯306接头设计······································································································⋯⋯

6.1一般规定····························································································⋯⋯，⋯30�

6.2管节接头···························，····································································⋯⋯30�

.接头········································..···...⋯316.3节段接头···············································································....·······......⋯⋯�

6.4最终接头·······································，··································.············.........⋯⋯33�

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T/CHTS0020一20191

···················································⋯357抗震设计······································································································⋯⋯

················································⋯357.1一般规定··············，·····································································.···········⋯⋯�

················································⋯367.2分析验算································································································⋯⋯�

施················································⋯387.3抗震措施································································································⋯⋯�

8地基处理与基础设计·······················································································⋯⋯40

定················································⋯408.1一般规定································································································⋯⋯�

理················································⋯408.2地基处理································································································⋯⋯�

:’···············································⋯418.3桩基础二:’’······························································································⋯⋯�

··············································..⋯428.4基础垫层····························································································....⋯⋯�

8.5地基基础计算··························································································⋯⋯43�

9基槽与回填防护设计······································································..···············⋯⋯45

················································⋯459.1一般规定································································································⋯⋯�

···················································⋯459.2基槽······································································································⋯⋯�

············，································...⋯479.3回填防护·························，································································......⋯⋯�

··················，，·············........··.·...⋯489.4水下护坦·····································，·，···························.·.............····...·......⋯⋯�

计·，·················································⋯4910防水设计··，··································································································.⋯⋯

10.1一般规定································································································⋯⋯49�

10.2结构防水································································································⋯⋯49�

10.3接头防水································································································⋯⋯49�

n耐久性设计···············································································.·........········..⋯⋯52

11.1一般规定·:······························································································⋯⋯52�

11.2材料耐久································································································⋯⋯53�

················································⋯5611.3构造措施······················································，·········································⋯⋯�

11.4防腐措施··································································································，⋯57�

12施工监测与59运营期健康监测··············································································⋯⋯

················································⋯5912.1一般规定································································································⋯⋯�

测················································⋯5912.2施工监测································································································⋯⋯�

1260.3运营期健康监测······················································································⋯⋯�

计················································⋯6213临时工程设计································································································⋯⋯

定··········································......⋯6213.1一般规定···················································，·······························.............⋯⋯�

······························，····················⋯6213.2干坞··························································，··，········································⋯⋯�

道····，···········································⋯6413.3临时航道········，·······················································································⋯⋯�

计················································⋯“14管节栖装设计································································································⋯⋯

定·············································...⋯6514.1一般规定··························································································......⋯⋯�

42端门··················································⋯6514.2端封门···································································································⋯⋯�

箱················································⋯6514.3压载水箱································································································⋯⋯�

·············································⋯“14.4其他辅助设施····················，·····································································⋯⋯�

计················································⋯6915运营设施设计································································································⋯⋯

明····························，·························⋯71用词说明························································，···················································⋯⋯

T/CHTS0020一20191

港珠澳大桥设计指南�

第二分册:沉管隧道工程

总则

�1.0.1为规范港珠澳大桥沉管隧道设计，总结、推广港珠澳大桥沉管隧道设计经验，促进我国沉管

隧道工程设计技术水平发展，编制本指南。

条文说明:我国沉管隧道理论研究和工程应用��起步于20世纪70年代，进人21世纪以后快速发展，积累了丰富的工

程经验。港珠澳大桥是“一国两制”框架下、粤港澳三地首次合作共建的超大型跨海通道，三地设计技术规范要求及设

计习惯不完全一致，为保证大桥按统一标准建设，需统一设计中采用的技术标准及规范要求。港珠澳大桥沉管隧道在

实施过程中，针对海洋环境、深厚软基、大回淤、特长等特点，提出了一系列成功的解决方案，通过总结其设计经验，将对

我国后续的沉管隧道实施具有较好的指导意义。

.0.2本指南适用于港珠澳大桥沉管隧道工程设计，类似工程可参照执行。

条文说明:本指南重点规定了港珠澳大桥隧道沉管段设计中与土建相关内容。

1.0.3沉管隧道设计应遵循“安全、适用、耐久、美观、环保、经济”的基本原则，满足公路使用功能�

要求。

。0。4沉管隧道设计宜积极采用新技术、新工艺、新材料、新设备。

1.0.5�沉管隧道设计除应符合本指南的规定外，尚应符合有关法律、法规及国家、行业现行有关标

准的规定。

T/CHTS0020一20191

2术语、符号和代号

2.1术语

2.1.1沉2.1管隧道tunnelimmersed

在水域中主要由若干预制完成的基本�结构单元，将其通过浮运、沉放、水下对接形成的隧道。

2.1.2管节element

一次或分次预制完成�，可实施浮运、沉放、水下对接组成沉管结构的基本单元。

2.1.3节段segment月‘口...臼匕‘

一次或分次预制完成，在陆上舀盒管节��药侧训又单元。相邻节段间纵向钢筋不连

通，组成的管节称为节段式”护尔整体式管节。

2.1.4管节接头elemel涌oin�

管节与管节、管节与千间的连接

2.1.5节段接头se漏en心oint

节段与节段之’“白f气身构。

2.1.6最终接头己)su日joint

实现沉管隧道贯j对内丢结构，又称合

2.1.7剪力键sh‘.1.k

设于管节接头或节段接势，限制水平向工剪构件。

2.1.8CINA止水带勺昭1

安装于管节接头处的月脚沾

牡goMEGA止水带曳

安装于管节接头处的内贴可�

2.1.10可注浆中埋式止水带黯嘿黔袱

预埋在钢筋混凝土施工缝或管节节段间、用于止水的专用��橡胶带制品。止水带通常是带钢边、可

注浆式的橡胶止水带。

2.1.11口部建筑building�portal

位于隧道轴线两端的出、人口建筑物。��

2.1.12通风竖井shaftventilation�

隧道运营通风系统的进风、排风或排烟��竖井。

2.1.13中管廊2.1gallerycentral�

设置于沉管横断面左右行车孔之间��的综合服务廊道。

T/CHTS0020一20119

2.1.14基槽trench

用于埋置隧道的条形水下�基坑。

2.1.15碎石垫层bedgravel

管节沉放前铺设于基槽底部，为管��节提供稳定连续支撑的碎石层。

2.1.16回填2.1backfilling�

管节在基槽沉放到位后，采用碎石或其他材料对管节上��部和基槽进行填筑。起到对管节位置锁

定、防止上浮和覆盖保护等作用，可分为锁定回填、一般回填及护面回填。

2.1.17压重层ballast�

安放在沉管内或沉管顶作��为增加沉管有效j浦豁白主久结构。

2.1.15水下护坦pl州杯6nsubmarineapr塑

用于保护海床下构筑物免受爵舶的泪厄冈」性构造物或设施。

2.1.19隔离桩isolatio耳而ile

以减少或阻隔邻近荷拼不

2.1.20大边载hea，51

日‘眨加伙a]曰仁川

为了保护人工岛或广二山��构，采用石料胜行t面积、厚回填的沉管防

旧门r

护，防护体在沉管结构l生的较大荷载

we

.

.(l

2.1.21干舷free�

管节在寄放、系泊程中，其顶面高竖向距离�

2.1.222.1干坞dry

用于管节预制的场士用于晒装、起浮、系宁通常为固定干��坞况下利用大型船舶作为

管节预制、晒装的场地则干坞。

2.1.23寄放区‘sinkin创kl.ea

用于临时存放已经完成晒习颐亏管水

2.1.24浮运rloatingtranspoi确恤!n，，......，尸��月口

管节预制完成后，浮于水面，将其拖道野知血自自的必履。�

2.1.252.1沉放immersion

管节下沉至指定位置的过�程。

2.1.262.1对接connection

管节与管节间或管节与岛�上段间进行拉合及水力压接的过程。

2.1.27舟西装outfitting

管节浮运沉放所需的临时�设施及设备安装作业。

2.1.282.1压载水箱tankballast

调整管节起浮、浮运、沉放过程中�压载重量所采用的临时设施。

T/CHTS0020一20191

2.1.29人孔manhole

管节顶部预留的人员临�时进出孔洞。

2.1.30作业窗口windowoPeration

水文、气象等外部环境条件能够满足�特定施工工序作业要求的一个连续时间段。

2.2符号

C—��土体薪聚力;

d—细粒土粒径;��

。—孔隙比;���

fa—地基承载��力修正值;

fak—地基承载力特征值;��

frk—饱和岩石单轴抗压强度特��征值;

G—永久荷载;��

H—地基基础嵌��人深度;

C50—立方体抗压强度标准值�为50MPa的混凝土强度等级;

D—粗粒土粒径;��

EC—混凝土弹性模量;��

E，—普通钢筋弹性模量;��

Ep—预应力钢筋弹性模量��;

fcu—边长为150mm的混凝��土立方体抗压强度;

fcu，k—边长为150mm的混凝土立方体抗压强度标�准值;

fck，fcd—混凝土轴心抗压强度标准值、设计值;

ftk，ftd—混凝土轴心抗拉强度标准值、设计值;

fsk，fsd—普通钢筋抗拉强度标准值、设计值;

几k，九d—预应力钢筋抗拉强度标准值、设计值;

f:d，f;d—普通钢筋、预应力钢筋抗压强度设计值;

a—附加应力系数;���

了5—饱和重度;��

yus—非饱和土的��重度;

甲—土内摩擦角;