Company/Organization Profile

1、Institutional Profile

CCCC Guangzhou Dredging (Heilongjiang)Water and Electric Co.,Ltd has years of in-depth experience in water conservancy engineering construction in cold regions of Heilongjiang Province. It focuses on the research and development of green and low-carbon technologies for waterborne construction during the ice-sealed period in northern areas, integrating local traditional ice and snow construction techniques with modern hydraulic engineering technologies.

The company has established a dedicated R&D team to tackle the pain points of high ecological disturbance, high costs and high safety risks inherent in conventional temporary construction works. It has independently developed the construction technology for ice road erection and operation-period dynamic monitoring for water-related projects in cold regions, with three national patent applications accepted and granted original identification through provincial-level scientific and technological novelty search.

Centered on the ecological protection requirements of the Heilongjiang River Basin, this technology develops temporary access roads constructed from natural ice that feature low environmental disturbance, zero residual waste and recyclability. Having been applied in three key grain production capacity water conservancy projects in Tongjiang, Raohe and Xunke, the company practices the green construction concepts of the Dual Carbon Goals and the Beautiful China Initiative, and has formulated a replicable complete set of green construction solutions for water conservancy projects in cold regions.

2.Corporate Logo

机构简介

1、机构简介

中交广航（黑龙江）水利水电有限公司深耕黑龙江寒区水利工程建设多年，聚焦北方冰封期涉水施工绿色低碳技术研发，融合本土冰雪建造传统与现代水利工程技术。公司组建专项研发团队，攻克传统临建高扰动、高成本、高风险痛点，自主研发寒区涉水项目冰道修筑与运行期动态监测施工技术，获3项国家专利受理、省级科技查新原创认定。项目立足黑龙江流域生态保护需求，打造低扰动、零遗留、可再生天然冰临时通道，已在同江、饶河、逊克三大粮食产能水利工程落地，践行双碳与美丽中国绿色施工理念，形成可复制寒区水利绿色施工成套方案。

Project Overview

1.Current Problems

The ice-bound period in cold northern regions of China lasts 3 to 5 months. For water-related revetment and river regulation projects, traditional island construction and temporary access roads in winter require large-scale earth and rock excavation with enormous earthwork volume, causing severe disturbance to riverbeds and aquatic habitats. Conventional simple ice roads lack a standardized system; ice thickness is designed purely based on experience, leading to high collapse risks. In addition, construction debris left in river channels during the ice thawing period impairs flood discharge capacity and damages aquatic ecosystems.

Traditional solutions involve lengthy land acquisition cycles and high construction costs, and cannot be implemented within ecological red lines and water source protection zones. Interruptions in winter construction hinder the continuous advancement of water conservancy livelihood projects for grain production capacity improvement.

2.Cause Analysis

Existing construction technologies fail to take advantage of the natural low temperature and renewable ice resources in cold regions. There is a lack of quantitative bearing capacity models for ice bodies and a full-cycle ecological management and control system. Besides, ice roads are not equipped with diverging transportation layouts, resulting in the separation of safety supervision and environmental protection control.

3.Improvement Objectives

To build 50-ton heavy-load eco-friendly ice roads relying on natural freshwater ice, reduce earthwork volume by 95% and overall comprehensive costs by 70%. Achieve zero safety accidents and zero residual water pollution throughout the construction, operation and dismantling stages, maximize the utilization of natural cold energy, and establish a new green and low-carbon winter construction model for water conservancy projects in cold regions.

项目背景

1、问题现状：

我国北方寒区冰封期3-5个月，涉水护岸、河道整治工程冬季传统筑岛、临时便道需大规模土石方开挖，土石方量巨大，河床、水生栖息地扰动严重；常规简易冰道无标准化体系，冰厚凭经验设计，坍塌风险高，且融冰期建筑垃圾遗留河道，破坏行洪与水生态。传统方案征地周期长、施工成本高，生态红线、水源保护区内无法落地，冬季施工断档制约粮食产能水利民生工程连续推进。

2、原因分析：

现有施工技术未利用寒区天然低温、冰体可再生资源，缺乏量化冰体承载力模型、全周期生态管控体系，冰道无分流运输设计，安全与环保管控分离。

3、改进目标：

依托天然淡水冰打造50t级重载生态冰道，土石方削减95%、综合成本降低70%，实现施工、运行、拆除零安全事故、零水体遗留污染，最大化利用自然冷能，构建寒区水利绿色低碳冬季施工新模式。

Project Implementation

The company established a special technical research team to systematically carry out technological innovation and engineering practice in three stages: research and development, on-site pilot application, and standardized promotion and implementation.

1. Solve the problems of unscientific ice road design and high risk of brittle collapse

The project independently developed a composite reinforced ice modification technology. Combining Chinese national standards with Canadian cold-region ice road construction experience, a dual ice thickness checking calculation system was established. An innovative reinforcement technology of layered pouring with pine poles arranged in a 0.5-meter cross grid was applied to optimize the structural performance of the ice road.

A 483-meter test ice road was constructed as a pilot for the Tongjiang water conservancy project. By adopting the layered thin-layer temperature-controlled pouring process, the failure mode of sudden brittle fracture of ice was transformed into controllable ductile deformation, which greatly improved the structural stability of the ice mass. Four-level static and dynamic bearing capacity tests were conducted to fully verify the safety margin of the ice road, fundamentally eliminating the hidden danger of high collapse probability caused by empirical design of traditional simple ice roads.

2.Address low transportation efficiency of single-lane two-way traffic and severe fatigue damage of ice

A closed-loop three-lane transportation route layout was innovatively designed. The ice road was divided into three independent dedicated lanes for heavy-load forward travel, empty vehicle return and emergency evacuation respectively, with a clear spacing of no less than 5 meters between lanes to prevent ice damage induced by superimposed loads from multiple lanes.

The construction team adopted GNSS underwater topographic survey technology to accurately calculate the bearing capacity of the ice layer and determine the optimal alignment of the ice road. Standard passing bays were set every 100 meters to avoid vehicle head-on conflicts at the source, significantly improving the transportation efficiency in winter construction and reducing ice fatigue damage under repeated cyclic loads.

Overcome the management deficiencies of delayed manual inspection and untimely risk early warning

A four-dimensional digital intelligent monitoring system covering meteorology, under-ice hydrology, ice layer condition and construction load was constructed, equipped with automatic weather stations, water level sensors, Beidou vehicle-mounted monitoring terminals and regular UAV inspection devices. A three-level closed-loop risk early warning and disposal mechanism was formulated.

Relying on the online intelligent management and control platform, multi-source monitoring data can be collected, summarized and analyzed in real time to realize accurate prediction and rapid disposal of safety risks. The overall risk response time is controlled within 30 minutes, realizing dynamic and precise full-process management during the operation of the ice road.

4.Eliminate ecological hazards including severe disturbance from earth-rock works and river pollution by dismantling residues

A full-cycle collaborative management system for safety and environmental protection was formulated. During construction, on-site accumulated snow was reused for protective dike construction and natural fresh water was adopted for ice production, requiring no large-scale earth and rock excavation and minimizing ecological disturbance from the source. In the ice melting and demolition phase, 100% of construction materials including pine reinforcement members, sand and gravel auxiliary materials and impermeable membranes were recovered and transported ashore. No construction waste or residual materials were left in the river channel, effectively protecting the aquatic ecosystem and flood discharge safety of the river basin.

The core theoretical research of the project was launched in October 2025, and the first standardized heavy-load eco-friendly ice road was completed for the Tongjiang water conservancy project in November of the same year. By the end of 2025, the complete technical system was popularized and applied to key water conservancy projects in Raohe and Xunke, with a total length of 1,790 meters of standardized heavy-load eco-friendly ice roads completed. Green and ecological construction management specifications were strictly enforced throughout the project, eventually forming a mature, standardized and replicable set of standard operating procedures for green winter construction of water conservancy projects in cold regions.

项目实施

公司组建专项技术攻关小组，分技术研发、现场试点应用、标准化推广落地三个阶段，系统性开展技术革新与工程实践工作。

一、攻克冰道设计不科学、脆性坍塌风险高的难题。项目自主研发复合加筋冰体改良技术，融合国内国标规范与加拿大寒区冰道施工经验，构建双重冰厚验算体系；创新采用松木杆0.5米井字格分层浇筑补强工艺，优化冰道施工结构。依托同江水利工程开展试点建设，修筑483米试验冰道，通过分层薄层控温浇筑工艺，将冰体原有突发脆断的破坏模式优化为可控延性变形，大幅提升冰体结构稳定性。同时开展四级分级静、动载承载力试验，全面验证冰道安全冗余，彻底解决传统简易冰道仅凭经验设计、坍塌风险极高的痛点。

二、解决单车道双向运输效率低、冰体疲劳损伤严重的问题。创新设计三车道闭环运输动线布局，将冰道划分为重载通行、空载返程、应急避险三条独立专用通道，设定车道净距不小于5米，有效规避多车道荷载叠加引发的冰体损伤问题。施工团队依托GNSS水下地形勘察技术，精准测算冰层承载力，划定最优冰道敷设线路，每100米设置标准化错车点位，从源头杜绝车辆会车冲突，大幅提升冬季施工运输效率，减少冰体反复荷载造成的疲劳破损。

三、破解人工巡检滞后、风险预警不及时的管控短板。搭建气象-冰下水文-冰层状态-施工荷载四维数字化智能监测体系，配套布设自动气象站、水位传感器、北斗车载监测终端、无人机常态化巡检等智能设备，建立三级风险预警闭环处置机制。依托线上智能管控平台，实时采集、汇总、分析多源监测数据，实现安全风险精准预判、快速处置，将整体风险响应时长严格控制在30分钟以内，实现冰道运行全过程动态、精准管控。

四、根治土石方施工扰动大、拆除遗留物料污染河道的生态问题。建立全周期安全、环保协同管控体系，施工阶段就地取用场地积雪修筑防护堤、采用天然淡水制备工程用冰，全程无需大规模土石方开挖，从源头降低生态扰动；融冰拆除阶段，对松木加固材料、砂石辅料、防渗膜等所有施工物料实现100%回收上岸处置，无任何建筑垃圾、废弃物料遗留河道，全面保护流域水生态与行洪安全。

本项目于2025年10月启动核心技术理论研究，同年11月在同江水利项目建成首条标准化重载生态冰道；2025年底，整套技术体系同步推广应用至饶河、逊克重点水利工程，累计建成标准化重载生态冰道1790米。项目全过程严格落实绿色施工、生态施工管控要求，最终形成一套成熟、规范、可复制的寒区水利工程冬季绿色施工标准化作业流程。

Project Outcome

1.Quantitative Comparison Before and After Implementation

The earthwork volume for the traditional island construction temporary structure reaches 25,000 cubic meters per kilometer, while only 1,200 cubic meters are required for the proposed construction technique, representing a 95% reduction in earthwork quantity. The direct cost per kilometer is lowered from 1.95 million RMB to 580,000 RMB, marking a 70% cost cut. Transportation efficiency is boosted from 7 vehicle trips per hour to 11 vehicle trips per hour, an increase of 60%. A total carbon emission reduction of 37.6 tons and a diesel saving of 21,600 liters are achieved throughout the full life cycle. Zero safety liability accidents and zero water pollution incidents were recorded across three pilot projects, with no solid residues left in river channels upon demolition.

2. Core Innovation Highlights

(1) Technological Innovation

A domestically pioneering closed-loop digital intelligent monitoring system for four-in-one ice passage is developed, incorporating quantitative ice thickness design based on dual theories and pine grid composite ice reinforcement technology. Provincial novelty search and assessment confirm that no identical complete set of technologies exists at home and abroad. Two invention patents have been granted, and one utility model patent is under acceptance.

(2) Model Innovation

An innovative three-lane diverging ecological ice passage model is proposed. It integrates traditional ice and snow construction techniques unique to Heilongjiang Province with modern hydraulic engineering, and cross-applies cultural tourism ice construction technologies to heavy-load temporary hydraulic projects.

(3) Ecological Mechanism Innovation

Collaborative safety, environmental protection and risk control is implemented over the entire life cycle. Natural ice is adopted as a renewable temporary building material, which is erected seasonally, dismantled seasonally and melts naturally without permanent pollution. A low-carbon construction route relying on natural cold energy utilization is established.

3. Replicability and Sustainability

A complete standardized manual covering investigation, construction, monitoring and demolition has been compiled for the technique. It requires no large special equipment and is applicable to all inland river hydraulic projects in northern regions with extreme low temperatures ≤ -20°C and ice sealing periods of no less than 3 months. Its application can be further extended to ice rescue access roads and supporting roads for ice and snow parks. The solution can be repeatedly deployed during the annual icebound season with sustainable and recyclable natural ice resources, complying with long-term green construction policies for cold regions.

成果亮点

1、量化实施前后对比

传统筑岛临建单公里土石方2.5万m³，本工艺仅0.12万m³，土石方削减95%；单公里直接成本由195万元降至58万元，成本下降70%；运输效率由7车次/小时提升至11车次/小时，提升60%；全周期减碳37.6吨，节约柴油21600L。三个试点工程实现零安全责任事故、零水体污染事件，拆除后河道无任何固体遗留物。

2、核心创新亮点

（1）技术创新：国内首创四维一体冰道数智监测闭环体系，双重理论冰厚定量设计+松木网格复合冰体补强技术，经省级查新认定国内外未见同类成套技术；已取得2项发明专利、1项实用新型专利受理。

（2）模式创新：三车道分流生态冰道新模式，融合黑龙江传统冰雪建造技艺与现代水利工程，将文旅冰建技术跨界应用于水利重载临时工程。

（3）生态机制创新：全生命周期安环协同管控，天然冰作为可再生临时建材，季建季拆、自然消融无永久污染，构建“自然冷能利用”低碳施工路径。

3、可复制持续性

工艺形成完整勘察-施工-监测-拆除标准化手册，无需大型特种设备，适用于北方极端低温≤-20℃、冰封≥3个月所有内河水利工程，还可拓展冰上救援通道、冰雪园区配套道路；每年冰封周期可重复落地应用，天然冰资源可持续循环利用，长期适配寒区绿色施工政策要求。

Project Highlights

Ecological and Environmental Benefits

The statistical scope covers three water conservancy pilot projects. The projects reduced earth and rock excavation volume, cutting disturbance to riverbeds and aquatic habitats by 95%. All construction wastewater was collected and recycled, and 100% of demolished materials were recovered onshore. No oil pollution or solid waste was discharged into river channels, keeping the water quality stably compliant with Class III of the Surface Water Environmental Quality Standard. Throughout the full life cycle, the projects cut carbon dioxide emissions by 37.6 tons and saved 31.9 tons of standard coal. By harnessing natural cold energy in winter, the consumption of high-carbon building materials such as cement and steel was lowered.

Social Impacts

This achievement fills the industrial gap in standardized construction of 50-ton heavy-load ice roads in cold regions, delivering a feasible solution for green and continuous construction of offshore water conservancy projects in northern areas during winter. The whole construction process strictly guaranteed on-site workers’ safety. A total of 223,000 cubic meters of revetment materials were transported, accelerating the implementation of river flood control and grain security projects, and blazing a new path for the green utilization of ice and snow resources.

Auxiliary Economic Benefits

The three pilot projects saved over 4.9 million yuan in comprehensive costs in total, shortened the construction period, and enabled flood control and grain production capacity guarantee benefits to be delivered in advance.

成果影响力

1、生态环境效益

统计范围为3个水利试点项目。项目缩减土石方开挖量，河床及水生栖息地扰动降低95%；施工废水全部收集回用，拆除物料100%上岸回收，无油污、固废排入河道，水质稳定达到地表水Ⅲ类。项目全生命周期减排二氧化碳37.6吨，节约标准煤31.9吨，利用冬季自然冷能，减少水泥、钢材等高碳建材使用。

2、社会影响

该成果填补寒区 50 吨级重载冰道标准化施工行业空白，为北方冬季离岸水利项目绿色连续施工提供解决方案。项目全过程筑牢人员安全防线，完成22.3万立方米护岸物料运输，助推沿江防洪与粮食安全工程实施，开辟冰雪绿色利用新路径。

3、辅助经济效益

三处试点项目累计节约综合成本超490万元，缩短施工工期，提前发挥防洪、粮食产能保障效益。

Reviews & Honors

1. Evaluations from Users and Third Parties

According to the acceptance feedback submitted by water conservancy construction entities and supervision units in Tongjiang, Raohe and Xunke, the ecological ice road features convenient construction, sound safety and stability. It incurs no extra costs for dredging and ecological restoration required by conventional construction schemes, leaves the river channel intact after ice thawing, and achieves remarkable results in ecological control. A novelty search report issued by a third party verified the originality and technological advancement of the complete set of construction techniques. On-site construction teams reported that the intelligent digital monitoring system greatly reduces the workload of manual inspections, and the three-level early warning mechanism effectively avoids major safety hazards such as ice falling and structural collapse.

2. Industrial and Phased Recognitions

Two invention patents and one utility model patent for core technologies of the construction method have been accepted. Three physical verifications on water conservancy projects have been completed, and standardized construction guidelines have been compiled, which can serve as practical models for green construction in the water conservancy industry in cold northern regions. The project complies with the requirements of "Four Savings and One Environmental Protection" stipulated in the Guidelines for Green Construction. Its low-carbon construction mode utilizing natural cold energy has won high recognition from water conservancy industry experts and has been listed as a typical practical case of ecological temporary works in cold regions.

Though no official awards have been obtained to date, the project has passed all special acceptance procedures for environmental protection and safety upon project completion. All acceptance documents are complete and traceable, demonstrating great value for promotion and demonstration across the industry.

评价与荣誉

1、用户与第三方评价

同江、饶河、逊克三地水利业主单位、监理单位验收反馈，该生态冰道施工便捷、安全稳定，未产生传统方案清淤、生态修复额外投入，融冰后河道原貌无破坏，生态管控成效显著；第三方出具查新报告，认定整套工艺具备原创性，技术领先。现场施工班组反馈数智监测系统大幅降低人工巡检压力，三级预警机制有效规避坠冰、坍塌重大安全风险。

2、行业与阶段性认可

工艺关键技术已受理2项发明专利、1项实用新型专利，完成三项水利工程实体验证，形成标准化施工指导文件，可为北方寒区水利行业绿色施工提供实操范本；项目践行《绿色施工导则》“四节一环保”要求，依托天然冷能的低碳建造模式获得水利行业专家高度认可，被作为寒区生态临时工程典型实践案例。现阶段无官方评奖，已完成全部工程竣工环保、安全专项验收，所有验收资料完整可追溯，具备行业推广示范价值。