桥梁快速施工技术在鱼山大桥中的创新应用

工程难点
Engineering difficulties
支撑条件缺乏 建设条件复杂 建设规模浩大 建设工期紧迫
Lack of support conditions Complex conditions Great scale of construction Urgent construction period
无案例可借鉴 No case to learn
2016/9 2017/1
2018/1
2018/12
开工
Commencement of Work
跨海大桥7782米/1座
The bridge is 7782 meters across the sea
通车
Open to traffic
支撑条件缺乏
Lack of support conditions
项目背景 Project context
宁波舟山港主通道线位图
Main aisle linemap of Ningbo-Zhoushan Port
甬舟高速
Ningbo-Zhoushan Highway
富翅互通
Connect with Fuchimen bridge
富翅门大 桥
Fuchimen bridge
承台 Pile caps
鱼山大桥
Yushan bridge
墩身施工7天
Construction of the pier 7 days
下部结构工期可减少5个月
The substructure construction period can reduced by 5 months
施工工效分析
Construction efficiency analysis
Minimize the number of constructors at sea
设计方面
Bridge Design
施工组织
Construction Organization
桥梁设计
Bridge Designs
标准化设计 Standardized
design
强化统筹设计
减少作业时间
Sபைடு நூலகம்rengthen the overall design Reduce operating time
统筹设计，减少作业时间
Overall design for reducing construction period
项目背景
Project context
常规桥梁
Conventional bridge
单桩独柱结构
Single pile single column structure
桩基施工25天
Pile foundation construction 25 days
non-navigation zone near by Yushan island. 非通航孔桥分为靠近通航孔桥的深水区和靠近岸边的浅水区
Non-navigation zone is divided into deep water zone and shallow water zone.
300 -1.880 0#
季风、台风 monsoon and typhoon
风力≥ 6级为173天，≥ 8级为66天。 Wind power ≥ 6 is 173 days Wind power ≥ 8 is 66 days
有效工作日仅200天左右。 The effective working day is only about 200 days.
“three reductions” management concept
三减少
Three reductions
海上作业工序减少到最少
Minimize construction works at sea
海上作业时间减到最短
Minimize construction time at sea
海上作业人数减到最少
桥位水流速度大 High speed of water flow at bridge site
最大设计流速2.84m/s Maximum design flow rate is 2.84m/s
大于其他跨海大桥的设计流速。 Design flow rates higher than other sea- crossing bridges.
桩径： φ4.5-4.0 φ5.0-3.8
Pile diameter：φ4.5-3.8 φ5.0-3.8
双曲面花瓶墩：φ3.6
Double curved vase pier: φ3.8
单桩独柱结构
Single pile single column structure
通航孔桥设计
Zones of the bridge
双合互通
Merge channels
岱山环岛
Daishan roundabout
鱼山大桥线位图
linemap of Yushan bridge
岱北大围垦
工程难点
Engineering difficulties
支撑条件缺乏
建设条件复杂 建设规模浩大 建设工期紧迫
Lack of support conditions Complex conditions Great scale of construction Urgent construction period
• 鱼山大桥孤悬海外 Yushan bridge stand lonely on the sea.
• 岱山和鱼山距离本岛在16km以上 Daishan and yushan are more than 16km
away from the island.
• 桥位缺乏遮蔽 Bridge position lack of shelter.
下部结构包括170余根超大超长桩基，最大桩径5m，最大桩长148.2m The substructure consists of more than 180 super-long piles with a maximum pile diameter of 5m
and a maximum length of 148.2m.
烟墩互通
Connect with Yandun
岑港互通
Connect with Cengang
G329
灰鳖洋
Huibie ocean zone
Yushan bridge
鱼山大桥
长白互通
Connect with Changbai
舟岱大桥
ZhoushanDaishan bridge
北向大通道
large channel northward
标准化设计
上部结构
Superstructure
项目背景
Project context
通航孔桥
navigation bridge
主跨260 main span 260m
全桥节段梁
segmental girder of full bridge
非通航孔桥 non-navigable
bridge
浅水区：50m跨
工程难点
Engineering difficulties
支撑条件缺乏 建设条件复杂 建设规模浩大
建设工期紧迫
Lack of support conditions Complex conditions Great scale of construction Urgent construction period
The buried depth of bedrock is more than 100m, and the maximum buried depth is 140m
岩性复杂，可分为6大类12小类。
The complex lithology can be divided into 6 categories and 12 sub-categories.
设计方面
Design aspects
工厂化预制 Factory
prefabrication
桥梁区域划分
Zones of the bridge
鱼山大桥全桥分为3个区域，通航孔桥，岱山侧通航孔桥，鱼山侧通航孔桥 The bridge is divided into 3 zones, navigation zone , non-navigation zone near by Daishan island and
通航孔桥跨布置为70+140+180+260+180+140+70m，总长1040m，通航孔桥涵盖了水深大 Pr项oje目ct 背con景tex于t 15m的深槽，且桥梁跨径缓缓变化，协调大方，相较工可减少了4个桥墩，降低了船撞风险。
非通航孔桥设计
Zones of the bridge
岱山侧非通航孔桥布置为：3×(4×50)+2×(5×50)+4×(4×70)+2×(5×70)m，总长2920m； 项目背景 鱼山侧非通航孔桥布置为：4×（5×70）+3×（4×70）+（3×70+64.75）+5×50+4×（4×50） Project context +50+7+50+3×（50）m，总长3821.75m
工程难点
Engineering difficulties
支撑条件缺乏
Lack of support conditions
建设条件复杂
建设规模浩大
建设工期紧迫
Complex conditions Great scale of construction Urgent construction period
建设条件复杂
Complex conditions
建设规模浩大
Great scale of construction
建设工期紧迫
Urgent construction period
complete this huge project quickly with
better quality
创新“三减少”管理理念
路线总长8.815km，海域桥长7.782km，墩台共114个 The overall length of the route is 8.815 km, and the bridge length of sea area is 7.782 km, and there
are a total of 114 piers.
上部结构全部节段预制拼装，共计2370榀节段梁，及89m长钢箱梁 All sections of the superstructure are prefabricated and assembled, with a total of 2,370 trusses of
segmental beams and 89m steel box beams
桥梁快速施工技术在鱼山大桥 中的创新应用
王再荣
浙江交工集团股份有限公司 鱼山大桥项目部
2108.11
汇报内容 Outline
01 工程背景 Project Context
02 桥梁设计 Bridge Designs
03 桥梁施工组织 Bridge Construction Organization
Shallow water: 50m span
深水区：70m
Deep water: 70m span
下部结构 Substructure
群桩承台结构 Group pile platform
structure
桩径： φ3.8-3.0
pile diameter: φ3.8-3.0
双曲面花瓶墩：φ3.6
Double curved vase pier: φ3.6
-2.500
23# 48# 51# 52# 55#
Non-navigation zone 鱼山侧非通航孔桥
2514.75m
3821.75m
70m跨区域
Deep Water
（36孔）
0.700
91#
1307m
50Smh跨all区ow域 （W2a6te孔r ）
-0.500
-2.998 0.000
118#
海底电缆 DC cable
Navigation zone
通航孔桥跨越舟山国家柔性直流输
电示范工程舟岱线海底电缆
Navigation zone aross the ntricate
submarine DC cables
地质条件复杂 Complex geological conditions
基岩埋深大于100m，最大埋深140m
1100m
50Smh跨al区low域 （W22a孔te）r
0.500
Non-navigation zone 岱山侧非通航孔桥
2920m
1820m
De7e0pm跨W区ate域r （26孔）
-0.300
2.500
Navigation zo 通航n孔e 桥
1040m 1040m
通航净空220×30m 2000吨杂货船兼顾通达号客轮