Shijiazhuang Tiyu Street overpass slope-adjustment jacking project
Engineering Service
Bridge Jacking, Bearing Replacement and Slope Adjustment Services
桥梁顶升、支座更换与调坡改造服务
Specialized services for bridge upgrading in municipal, highway, railway and waterway infrastructure, including bridge jacking, slope adjustment, bearing replacement, underpinning reinforcement, structural modification and widening.
面向市政、公路、铁路、航道等基础设施领域，为桥梁提升改造提供顶升、调坡、支座更换、托换加固、结构改造和拼宽改造等专业服务。
Supplied by Shanghai Zhitongxing Urban Renewal Construction Co., Ltd.
Overview
Service overview
This service is designed for municipal, highway, railway and waterway infrastructure, providing specialized services for bridge upgrading and modification, including jacking, slope adjustment, bearing replacement, underpinning reinforcement, structural modification and widening. It is applicable to bridge maintenance and repair, road elevation adjustment, navigation clearance improvement, bridge functional upgrading, seismic bearing replacement, treatment of route-crossing impacts and bridge modification under complex traffic conditions.
The service adopts PLC synchronous hydraulic jacking, temporary support, structural conversion, phased construction control and night-time construction organization, enabling implementation under conditions such as maintained traffic, constrained sites, operation-sensitive environments and short construction windows.
该服务面向市政、公路、铁路、航道等基础设施领域，为桥梁提升改造提供顶升、调坡、支座更换、托换加固、结构改造和拼宽改造等专业服务。适用于桥梁养护维修、道路标高调整、航道净空提升、桥梁功能提升、抗震支座更换、线路交叉影响处理及复杂交通条件下的桥梁改造项目。
服务采用PLC同步液压顶升、临时支撑、结构转换、分阶段施工控制和夜间施工组织等技术手段，可在不中断交通、场地受限、运行敏感或施工窗口期较短的条件下实施。
Scope
Service scope
Key components that may be provided for relevant engineering scenarios.
- PLC synchronous hydraulic jacking, temporary support, structural conversion, phased construction control and night-time construction organization can be adopted to meet engineering conditions involving maintained traffic, constrained sites, operation-sensitive environments or short construction windows
- 采用PLC同步液压顶升、临时支撑、结构转换、分阶段施工控制和夜间施工组织等技术手段，可适应不中断交通、场地受限、运行敏感或施工窗口期较短的工程条件
Scenarios
Applicable project scenarios
Typical project conditions where this offering may be relevant.
- Bridge maintenance and repair
- road elevation adjustment
- navigation clearance improvement
- bridge functional upgrading
- seismic bearing replacement
- treatment of route-crossing impacts
- bridge modification under complex traffic conditions
- 桥梁养护维修
- 道路标高调整
- 航道净空提升
- 桥梁功能提升
- 抗震支座更换
- 线路交叉影响处理
- 复杂交通条件下的桥梁改造
Offering Details
Technical Details & Applications
Representative Project References
Company project: Inner Ring Elevated Road facility upgrading and functional improvement project (Phase IV) (Nanpu Bridge–Dong’an Road) bearing replacement. PLC synchronous jacking was adopted under maintained-traffic and night-time construction conditions. A total of 86 spans and 4,322 bearings were replaced, reducing the impact on urban traffic as much as possible.
Company project: Underpinning of P118 and P120 piers of Metro Line 3 during shield tunnel crossing. This project was the first light-rail line underpinning modification project in East China carried out without suspending operation. The P120 and P118 pier underpinning works were completed within maintenance windows, ensuring normal metro operation on the following day and creating the conditions for subsequent shield tunnelling.
Company project: S20 Outer Ring Expressway Taihe Road viaduct repair and maintenance project, K177-K179 bridge jacking and bearing replacement. The project involved a steel-concrete composite girder structure. PLC synchronous jacking was adopted during night-time construction to complete bridge jacking and bearing replacement.
Company project: Shijiazhuang Jianshe Street and Tiyu Street overpass slope-adjustment jacking project. Due to urban renewal requirements, 8 spans were jacked for slope adjustment. Follow-up jacking technology was adopted, with a maximum jacking height of 6.277 m and a total jacking area of 4,292 m². After jacking, the overall bridge gradient was nearly levelled.
Company project: Yixian Avenue overpass jacking modification for the reconstruction and expansion of the Nansha-Zhuhai section of the Guang’ao Expressway. PLC synchronous jacking was adopted. The modification length was 370.54 m and the total jacking area was 5,558.10 m². The works included bearing replacement, pedestal heightening, cap-beam heightening, column-cutting jacking and other processes.
Company project: Lüsi regional water-supply pipeline crossing the Tonglü Canal lifting and modification project. Due to navigation-channel upgrading, the clearance of the existing pipeline no longer met requirements. A new steel truss was built as the river-crossing pipeline structure, with a single span of 82.4 m, a bridge width of 3 m and a structural height of 8 m. A 500-tonne floating crane was used for lifting and installation.
Previous representative project of the core team: Beijing Road Yi River bridge jacking project. The project received the Guinness World Records certification for the “longest bridge jacking length”. The bridge is 1,210.72 m long, with 40 spans in a single carriageway, and both carriageways were lifted integrally by 3.1 m.
Previous representative projects of the core team: Maozhan Expressway jacking modification, Sutong Bridge bearing rehabilitation, Hongpailou Bridge jacking and Shuangnan Bridge jacking. These projects demonstrate the core team’s previous engineering experience in bridge jacking, bearing rehabilitation and bridge modification under complex traffic conditions.
技术说明与应用案例
代表项目参考
公司案例：内环高架设施提升及功能完善工程（四期）（南浦大桥—东安路）支座更换项目 项目采用 PLC 同步顶升工艺，在不中断交通、夜间施工条件下实施，总计更换 86 跨、4322 个支座，最大限度降低施工对社会交通的影响。
公司案例：盾构隧道穿越地铁 3 号线 P118、P120 桥墩托换项目 项目为华东地区首例轻轨线路“不停运托换改造”项目，利用天窗点完成 P120、P118 墩柱托换工作，保障第二天地铁正常运营，并为后续盾构穿越施工创造条件。
公司案例：S20 外环高速泰和路高架桥修复养护工程 K177-K179 桥梁顶升及支座更换项目 项目涉及钢混叠合梁结构，采用 PLC 同步顶升工艺夜间施工，完成桥梁顶升及支座更换。
公司案例：石家庄建设大街、体育大街跨线桥调坡顶升项目 因城市更新需求调坡顶升 8 跨，采用随动顶升工艺，顶升最大高度 6.277 米，顶升总面积 4292 平方米。顶升到位后，整座桥坡度接近调平。
公司案例：广澳高速公路南沙至珠海段改扩建工程逸仙大道跨线桥顶升改造工程 项目采用 PLC 同步顶升工艺，改造全长 370.54m，顶升总面积 5558.10㎡，包含支座更换、垫石接高、盖梁接高、断柱顶升等多种工艺。
公司案例：吕四区域供水管道跨通吕运河提升改造工程 项目因航道升级导致现有管道净空不满足要求，新建钢桁架作为过河管道，单跨 82.4m，桥宽 3m，结构高度 8m，采用 500T 浮吊船吊装就位。
核心团队既往代表案例：北京路沂河桥梁顶升工程 项目获得吉尼斯世界纪录“顶升长度最长桥梁”认证，桥梁全长 1210.72m，单幅 40 跨，左右幅整体抬升 3.1m。
核心团队既往代表案例：茂湛高速顶升改造工程、苏通大桥支座整治、红牌楼和双楠桥顶升等 这些项目体现了核心团队在桥梁顶升、支座整治和复杂交通条件下桥梁改造中的既往工程经验。
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