Pipe Jacking Machine Lowering Operation in a Circular Launch Shaft
Engineering Service
Trenchless Pipe Jacking
非开挖顶管工程
Trenchless pipe jacking services for municipal, district heating and underground utility pipelines, including slurry balance construction, large-diameter jacking and crossings beneath existing roads and expressways.
面向市政、供热及地下管网提供非开挖顶管施工服务，涵盖泥水平衡顶管、大直径管道顶进及道路、高速公路等既有基础设施下方的管线穿越。
Supplied by Henan Zhongding Bohua Construction Engineering Co., Ltd.
Overview
Service overview
Henan Zhongding Bohua provides trenchless pipe jacking services for underground pipeline construction. For projects beneath urban roads, expressways, existing structures and other areas where extensive open-cut excavation is undesirable, equipment and construction planning can be developed with consideration of geology, groundwater conditions, pipe diameter, jacking distance, cover depth and crossing constraints.
The company operates slurry balance and rock pipe jacking machines. Slurry balance pipe jacking coordinates cutting-head excavation, face-pressure control, slurry circulation and spoil removal with pipe advancement to maintain excavation-face stability and limit construction disturbance. Equipment and construction arrangements can be selected to suit different ground conditions, with process control focused on jacking alignment, ground settlement and protection of existing infrastructure.
The company's equipment portfolio covers multiple pipe-diameter ranges and supports new-build and crossing works for district heating, municipal and other underground pipelines, particularly where traffic continuity, limited surface excavation or disturbance control are key project requirements.
河南中鼎博华提供地下管道非开挖顶管施工服务。针对城市道路、高速公路、既有建构筑物及其他不宜大面积开挖区域的地下管线建设，可结合工程地质、地下水条件、管径、顶进距离、覆土条件及穿越对象进行设备选型和施工组织。
公司配置泥水平衡顶管机及岩石顶管机等专业设备。泥水平衡顶管通过刀盘开挖、开挖面压力控制、泥浆循环排渣与管节顶进等环节协同作业，以维持开挖面稳定并控制施工扰动；结合不同地层条件，可选择相应顶管设备及施工组织方式。施工过程中可围绕顶进姿态、地表沉降及既有设施保护等关键指标实施过程控制。
公司顶管设备能力覆盖多个管径区间，可服务于供热、市政及其他地下管线的新建和穿越工程，尤其适用于交通组织要求高、地表开挖受限或对地层扰动控制要求较高的工程环境。
Scope
Service scope
Key components that may be provided for relevant engineering scenarios.
- Slurry balance and rock pipe jacking equipment for varying ground conditions
- Equipment portfolio covering multiple diameters including large-diameter jacking
- Face stability, slurry circulation and jacking control to limit construction disturbance
- Equipment and method selection based on geology, groundwater, diameter and crossing constraints
- Suitable where road operation must be maintained or extensive excavation is restricted
- 泥水平衡与岩石顶管设备配置，可适应不同地层条件
- 设备能力覆盖多个管径区间，支持大直径管道顶进
- 通过开挖面稳定、泥浆循环及顶进控制降低施工扰动
- 可结合地质、地下水、管径和穿越环境进行设备与工法匹配
- 适用于需维持道路运营或限制大面积开挖的工程场景
Scenarios
Applicable project scenarios
Typical project conditions where this offering may be relevant.
- Pipeline crossings beneath urban roads
- Crossings beneath expressways and transport infrastructure
- Trenchless district heating and municipal pipelines
- Large-diameter underground pipe jacking
- Crossings in built-up or excavation-restricted areas
- Crossings requiring ground-settlement and existing-infrastructure control
- 城市道路下穿管道施工
- 高速公路及重要交通设施下穿
- 供热及市政地下管网非开挖施工
- 大直径地下管道顶进
- 既有建成区或开挖受限区域管线穿越
- 对地表沉降与既有设施保护要求较高的穿越工程
Offering Details
Technical Details & Applications
Construction Technology & Equipment
Equipment can be selected according to ground conditions, pipe diameter, crossing distance and site constraints. Pipe-jacking diameter ranges include DN200-DN800, DN800-DN2000 and above DN2000.
- Slurry balance pipe-jacking models include SPB2000-SPB4000, XDN300H-L, XDN450 and XDN500H-L.
- The core slurry-balance principle is to maintain excavation-face pressure while circulating slurry for spoil transport and coordinating continuous pipe advancement.
- Typical control priorities include jacking alignment, ground settlement, impacts on existing infrastructure and launch/reception conditions.
Application Case | West Third Ring Road North Extension / Lianhuo Expressway (G30)
For the West Third Ring Road North Extension crossing beneath the Lianhuo Expressway (G30), the company used slurry balance pipe jacking to install a district heating pipeline beneath the operating expressway. The pipeline diameter is DN2200 or above. Construction was carried out under heavy traffic conditions while maintaining normal expressway operation, with a ground-settlement control requirement of no more than 30 mm and focused control of jacking accuracy and ground disturbance.
技术说明与应用案例
施工技术与设备能力
公司可根据地层条件、管径、穿越距离及施工环境配置相应顶管设备。顶管施工管径范围包括DN200-DN800、DN800-DN2000及DN2000以上。
- 泥水平衡顶管设备型号包括SPB2000-SPB4000、XDN300H-L、XDN450、XDN500H-L等。
- 泥水平衡施工的核心技术逻辑为维持开挖面压力稳定，并通过泥浆循环完成渣土输送，同时配合管节连续顶进。
- 施工控制重点通常包括顶进轴线、地表沉降、既有设施影响及始发/接收条件等。
应用案例｜西三环北延穿越连霍高速（G30）顶管工程
在西三环北延穿越连霍高速（G30）顶管工程中，公司采用泥水平衡顶管技术实施热力管道下穿高速公路施工，管径为DN2200以上。施工区域交通繁忙，施工期间保持高速公路正常通行，地面沉降控制要求不超过30 mm，并对顶进精度与地层扰动实施重点控制。
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