宁波舟山港主通道工程技术创新

宁波舟山港主通道工程技术创新Technical

Innovation

of

Ningbo-Zhoushan

Port

Main

Passage

(NZPMP)工程对策

Countermeasure

of

NZPMP技术创新

TechnicalInnovation工程背景Backgroundof

NZPMP工程挑战Challenges

of

NZPMPContent0Backgr工ou

d背o1fZPMP理念工艺施工设计杭州湾HZB

Area沪舟甬大通道HZY

Great

Passage技

术

标

准

Design

standard公路等级Highway

Grade高速公路(双向四车道

)

Expressway

(two-way

four-lane)设计速度Design

drivingspeed100km/h路基宽度Roadbed

width26.0m荷载等级Load

grade公路

-

I级Highway

–Grade

I设计洪水频率Design

floodfrequency特大桥1/300；

其他1/100Super

major

br.

(1/300),Others1/100基本风速Basic

wind

speed42.3m/s(鱼山大桥Yushan

Br.,44.3m/s）平潭Pingtang

Br.

,44.8m/s、西堠门Xihoumen

Br.,41.2m/s舟岱大桥Zhoudai

Bridge富翅门大桥Fuchimen

Bridge鱼山支线大桥Yushan

BridgeThe

steel

box

girder

cable-stayed

bridgeSpan

arrangement：(74+106+390+106+74)m=750m南通航孔桥Southern

channel

bridge主通航孔桥

Main

channel

bridge跨径布置：

(78+187+550+550+187+78)m=1650mContinuous

rigid

frame

BridgesSpan

arrangement：(125

＋260

＋

125)m=510m北通航孔桥

Northern

Channel

bridge富翅门大桥

Fuchi

men

bridge

跨径布置：

(

57+108+340+108+57)m=670mContinuous

rigid

frame

Bridges鱼山支线大桥Yushan

branch

bridgeSpan

arrangement：(70+140+180+260+180+140+70)m=1040m0Challeg

o2挑fN战ZPMP念艺施工工管理理设计理

工程规模挑战

Challenge

of

Project

Scale

总长36.777km，跨越5个航道、连接五座岛屿的桥梁集群工程The

NZPMP

with

a

total

length

of

36.777km

crossing

five

waterways

and

connecting

the

five

islands.

继港珠澳大桥之后最大规模的公路跨海工程；其规模与杭州湾大桥、

港珠澳大桥主体桥梁工程相当The

largest

highway

cross-sea

project

after

the

HZMB.

Its

scale

is

comparable

to

that

of

the

HZBB

and

the

mainproject

of

the

HZMB.

混凝土总用量：约207.1万方Total

dosage

amount

of

concrete:

about

2.07million

m3.

钢材总用量：约80.4万吨。其中，钢管桩28.3万吨，钢箱梁4.2万吨，

其它钢材47.9万吨Total

usage

amount

of

steel:

about

0.8

million

tons.

Of

these,

0.283million

tons

of

steel

pipe

piles,

42,000

tons

of

steel

box

girder

and

0.479

million

tons

of

other

steel建设条件挑战Construction

condition

challenges季风影响严重，

最大可达11级，

平均八级以上大风天数达90d，最多达137dThe

influence

of

monsoon

is

serious,

the

maximum

can

be

up

to

11,

the

average

numberof

days

of

strong

wind

is

90days,

and

the

maximum

is137

days.桥位测线地震反射剖面图基岩埋深在

45~131m

之

间，普遍埋深120m

左右The

depth

of

bedrock

is

between

45m

and

131m,and

the

depth

of

bedrockis

about

120m.平均盐度‰

主通道：

25

杭州湾：10.8港珠澳：28.3Averagesalinity

‰

NZPMP:

25

HZBB:

10.8

HZMB:

28.3

海洋环境结构氯离子腐蚀问题突出Chloride

Ion

corrosion

of

structures

in

Marine

Environment

is

prominent

管理挑战

Project

management

challenges

中途接手、项目标准及建设工期不同

品质工程示范项目要求高High

requirement

of

quality

Engineering

demonstration

Project

海洋环境施工风险高（安全、工期、投资及进度）High

risk

of

construction

in

marine

environment

(safety,

duration,investment

and

progress)品质工程Quality

engineering管理挑战Project

management建设条件挑战Complex

construction

condition建设规模挑战Project

scale03工程对策Countermeasure

of

NZPMP念艺施工工管理理设计理集约化布局

Intensive

layout装配化施工Assemblyconstruction工厂化预制Factoryprefabricated安全舒适Safe

andcomfortable结构耐久Durability工业化生产Industiallpooduction施工组织层面

Construction

dimension工厂化预制Factoryprefabrication设计层面

Design

dimension工业化建造总体思路General

idea

of

industrialization

construction品质

需求

Quality

requirements经济效益Economicbenefits社会效益

Social

benefits桥梁工业化总体思路

General

ideal

pf

Bridge

Industrialization海上作业工序减到最少

Minimize

marine

operations海上作业时间减到最短

Minimize

operating

time

at

sea工业化

关键举措

Key

initiatives工业化

问题导向

Problem

orientation工业化

需求导向

Demand

orientation建设条件适应性

Adaptability效益

需求

Benefit

requirements海上作业人数减到最少Minimize

the

number

ofpeople

working

at

sea环境

需求

Environmental

needs环境需求

Environmental

needs效益需求

Benefit

requirements工高品质可控

QHaigith

qualtylled品质工程示范

Quality

Engineering顶层设计

Top-leveldesign环境友好性Environmentalfriendliness标准化设计Standardizeddesign标准化设计Standardizeddesign建设条件适应性

Adaptability海上作业人数减到最少Minimize

number

ofworkers

at

sea海上作业工序减到最少Minimize

operatingprocedure

at

sea工业化关键举措

Key

countermeasure工业化需求导向

Demand

orientation工业化问题导向

Problem

orientation信息化管理

InInfrmtatiotnonmanagementt工工业业化化成成效效

EEffffeecctt环境友好性Environmentalfriendliness品质需求

Quality

requirements装配化施工Assemblyconstruction安全舒适Safe

andcomfortable经济效益Eeconomicbenefits集约化布局Intensivelayoutoperating

time

at

sea社会效益

Scocial

benefits三减少

理念

Three

reductions过程制控

rocessscoontoll海上作业时间减到最短结构耐久

DurabilityMinimize桥梁设计标准化、构件制造工厂化、施工装配化及管控信息化Bridgedesign

standardizing,

components

manufacturing

in

plant

and

construction

assembling主要举措Majorcountermeasures设计标准化DesignStandardized北通航孔桥主通航孔桥南通航孔桥Integralpre-casted

boxgirder舟岱大桥总长26.188km,，海上桥梁16.355kmThe

total

length

of

Zhoudai

Bridge

is

26.188

km

,

and

the

bridge

at

sea

is

16.355km

鱼山大桥路线总长8.815km，海域桥长7.782kmThe

total

length

of

Yushan

Bridge

is

8.815km,

and

the

bridge

at

sea

is

7.782km94×

70m×

70m

整孔预制梁11

×

70mIntegralpre-castedboxgirder9

×

62.5m

Segmentalpre-casted

beam71×

70mIntegralpre-casted

boxgirder28

and30m

Prefabricated

T-beam48

×

50~

61×

70mSegmentalpre-casted

beam38

×

50mSegmentalpre-casted

beam鱼山大桥长白互通（

6

＋

9）

×

62.5m

Segmentalpre-casted

beam装配化率：基础67.7%、下部结构83.2%、上部

ss构e

9b.l9in%g

rate:

foundation

67.7%,

substructure

83.2%,

superstructure

99.9%预制盖梁316榀总预制量10805件Precasted

segmentalgirderTotal

prefabricated

unit:Integral

precasted

boxgirder预制墩柱1344节

Prefabricated

pier

column预制T梁2245片PrecatedT

beam钢管桩

2388根Pre

a孔te

c

v3e7r0

am节

e

l

i

4i2le榀C55中心高度CenterHeight(m)顶宽Top

slabwidth(m)底宽BottomSlab

width(m)翼缘悬臂Flangelength(m)顶板厚度Top

slabThickness(cm)腹板厚度Webthickness(cm)底板厚度Bottomslabwidth(cm)标准节段长度Standardsegmentlength(m)最大梁重Maximumweight（t）70m4.012.555.502.9528~5545~7027~95---185462.5m3.612.555.752.9528.045~7027~603.2/3.593.450m3.016.506.704.0028.045~7027~553.0/3.596.9260m4~13.312.555.502.9532~6250~9032~1203.0/3.5/4.0

/4.5257.8舟岱大桥

Zhoudai

Bridge非通航孔桥预制墩身墩高11.157m～49.672m不等，

预制类型共4类(

Ⅰ-Ⅳ类)。墩身数量为368座/694节，

最大节

段高度为18.7m，最大吊重560t。The

height

of

prefabricated

pier

piers

of

non-navigable

bridge

is

different

from

that

of11.157m~49.672m,

and

there

are

four

types

of

prefabricated

pier

(class

Ⅰ

-

Ⅳ).

The

number

of

piers

is

368

/

694

pieces,

the

maximum

segment

height

is

18.7

m,

and

the

maximum

lifting

weight

is

560

tons.C45C40C35C35

T梁跨径为30m或28m跨径，单幅桥宽12.50m，横向布置6片梁The

span

of

T

beam

is

30m

or

28m,

the

width

of

single

bridge

is

12.50m,

and

six

beams

are

arranged

transversely.

单片T梁高2.0m、宽2.07m(中)/2.11m(边)，湿接缝宽37cmSingle

unit

of

T

beam

is

2.0m

high,

2.07m

wide

(center)

/

2.11m

(edge),

wet

joint

width

37cm

最大梁重78t

The

maximum

beam

weight

78

tons装配式预应力砼T梁Prefabricated

PC

T-BeamC50Bent

CapPrecastedcolumnPile墩高Pier

heightH盖梁宽Bent

capwidth立柱边长Columnlength桩径Pilediameter承台边长Cushioncaplength系梁高Crossbeamheight系梁宽Crosswidth(m)(m)(m)(m)(m)(m)＜10m1.7/1.91.21.621.81.210～20m1.7/1.91.51.82.21.81.520～25m1.7/1.91.51.82.21.81.5预制拼装桥下部结构Prefabricated

bridge

substructureCrossbeam

临时工程标准化Temporary

engineering

standardization

栈桥工程

Trestle

works鱼山大桥、舟岱大桥DSSG01、DSSG02及DSSG04标YushanBridge,

Zhoudai

Bridge

Contract

DSSG01,DSSG02

&

DSSG04富翅门大桥A标、

B标Fuchimen

Bridge

Contract

A&B

海上平台

Offshore

platform舟岱大桥DSSG03、DSSG02及DSSG04标Zhoudai

Bridge

Contract

DSSG03,DSSG02

&

DSSG04

非通承台套箱

Cofferdam

of

platform

of

non-channel

bridge

DSSG04、DSSG02海上平台

Modular

Construction

of

Marine

Multi-Function

platform（生产、生活及存储区）

3个月（有效作业时间50天）

(production,

living

and管理理念Storage

area)

3

months

(effective

50

days)一个成功解决的施工工艺问题圆端型

哑铃型

三哑铃型

圆形

矩形非通航孔桥承台套箱设计Design

of

cofferdam

of

platform

of

non-channel

bridge7种类型7Types最重约175tThe

heaviest,

175tons一个未能解决的施工工艺问题One

unsuccessfully

solved

construction

technology

problem04技术创新TechnicalInnovation

ofNZPMP念艺施工工管理理设计理Integrated

erection

of

Terrestrial

Bridge常规双导梁架桥机Conventional

double-beam

bridge

erecting

machineAccelerated

Bridge

Construction

of

Yushan

Bridge单桩独柱结构Single

pile

single

column

structure承台Pile

caps桩基施工25天Pile

foundationconstruction

25

days墩身施工7天Construction

of

the

pier

7days常规桥梁P

onventional

bridgextCconte背景ct目roje项鱼山大桥Yushan

bridge鱼山大桥栈桥

Yushan

bridge

Trestle

有效工作日由200天提升至300天左右

Effective

working

day

increased

from

200

to

about

300

days全线栈桥7.8公里、

3个月完成

Trestle

Bridge

7.8km3

months

to

completeis

28

m

and

the

weight

is

35

t.

It

is

the

first

time

used

in

China。

The

structure

of

the

pier

is

a

cylindrical

vase

type

with

single

pile

and

single

column

structure,

the

steel

skeleton

is

prefabricated,,

the

maximum

reinforcement

skeleton

lengthIt

only

takes

0.5

days

to

install

on

site,

which

saves

at

least

15

days

compared

with

the

traditional

way.上部结构100%预制，混凝土箱梁节段预制，

钢箱梁整节预制。

100%

prefabricated

for

Superstructure主跨(span)260m

hmax

=12.14m钢箱梁整节预制通航孔节段梁非通节段梁Wet-joint

connection

of

composited

girder

construction

of

Fuchimen

BridgeNew

Building

Materials

for

Sea-Crossing

BridgesConnection

of

Prefabricated

Pier

shaft

of

non-channel

Bridge墩高小于20m墩身采用整体预制，钢筋混凝土结构。墩高大于20m墩身采用分节预制，分2节预制和3节预制两种情况

（分节原则为单节墩高小于20m，单节吊重小于600t），墩身受力采用预应力结构。舟岱大桥

Zhoudai

Bridge

预制墩身

Prefabricated

pier

shaft节段个数：

2节段最长：

18m底节段节段最重：

560t

Ⅲ类墩身（适用于35m<桥面设计高程≤45m区段）节段个数：

3节段最长：

18.7m中节段节段最重：

540tⅣ类墩身（适用于桥面设计高程>45m区段）本工程墩身设计采用“底节墩内齿块处P锚固定端+纵向预应力束+深埋锚张拉端”预应力体系。具有工艺成熟、技术可靠、成本低的优点。分节预制墩身通过剪力键和预应力钢束连接，

下节段顶部的剪力键和上节段底部的剪力槽匹配预

制，现场涂抹环氧树脂后拼装为整体。分两节预制墩身内部设有12束15-15预应力钢束，分三节预制

墩身在中下节墩身设置20束15-15预应力钢束。墩身下部内壁设置齿板作为下端预应力的锚固构造。墩顶为预应力张拉端，采用深埋锚工艺。墩身竖向预应力施工存在的问题

齿，

块处钢筋规格型号多，钢筋安装与模板安装交替施工，难以模块化工效低；

齿块处钢筋密集，纵横交错，浇注混凝土时下料、振捣难度较大。占用浮吊时间可减少—节约成本固定端圆P型锚具预制场提前穿束

钢绞线防腐问题预制场可提前穿束—降低风险预应力齿块可取消—提高功效思路一：采用连接器的竖向预应力体系钢绞线活动式套筒连接器张拉端深埋锚目前比较成熟，安装方便，施工质量易保证；主要缺点是首节钢棒须预埋和分段接长和锚固，相对钢绞线，

钢棒强度较低，价格高。思路二：采用预应力粗钢棒体系思路三：采用自锁式锚固预应力体系ZSM15-15自锁式锚