聚焦世界运河大会｜广西大学校长肖建庄：兼具“优质”与“绿色” 平陆运河是现代运河的开端

大运河传媒讯（董明 桂艳 发自广西桂林）10月15日，2026年世界运河大会在广西桂林闭幕。作为平陆运河建设的重要参与方，广西大学校长肖建庄聚焦绿色发展维度，在会上分享了平陆运河建设过程中的创新实践。他说，平陆运河的建设，在世界运河史上很难找到可直接借鉴的经验，也因此实现了多个“首次”，可以说是现代运河的开端。Grand Canal Media News (Dong Ming, Gui Yan, from Guilin, Guangxi) On October 15, the 2026 World Canal Conference concluded in Guilin, Guangxi. As a key participant in the construction of the Pinglu Canal, Xiao Jianzhuang, the president of Guangxi University, focused on the aspect of green development and shared the innovative practices adopted during the construction of the Pinglu Canal at the conference. He said that the construction of the Pinglu Canal offers few examples that can be directly borrowed from the history of world canals; therefore, many “firsts” were achieved during its construction. It can be said to mark the beginning of modern canals.

运河不只是交通要道，更是各国经济、文化与政治交流的重要基础设施，甚至是生命线工程。运河的建造范式，正随着全球科技创新与材料创新发生深刻改变。平陆运河里程不算长，但时间短、要求高。它的建造，需要开山辟岭，还面临突出的生态约束。在世界运河建造史上，很难找到可直接借鉴的经验。习近平总书记对平陆运河作出重要批示，要把它建成优质工程、绿色工程、廉洁工程。优质与绿色看似矛盾，平陆运河却在四年建设期里较好化解了。它呈现快设计、大规模、高强度、短工期的特点，把人工智能、数字孪生技术运用其中。我们认为，平陆运河是现代运河的开端。Canals are not only important transportation routes, but also crucial infrastructure for economic, cultural, and political exchanges between different countries. They can even be regarded as vital lifeline projects. The way in which canals are built is undergoing profound changes due to global technological and material innovations. The Pinglu Canal is not very long in length, but its construction requires a short time and high standards. Its construction involves breaking through mountains and obstacles, and it also faces significant ecological challenges. It is difficult to find any precedents from the history of canal construction around the world that can be directly applied here. The concepts of “high quality” and “greenness” may seem contradictory, but the Pinglu Canal has managed to resolve these contradictions effectively during its four-year construction period. It features rapid design, large-scale operations, high intensity, and a short construction period; artificial intelligence and digital twin technologies are also utilized in its construction. We believe that the Pinglu Canal represents the beginning of modern canals.

我们构建了 "安全、低碳、韧性、绿色" 的建造技术体系，这里重点分享几项突破。We have developed a construction technology system that emphasizes “safety, low carbon emissions, resilience, and sustainability”. Here, we will highlight several key breakthroughs.

马道、企石、青年三大枢纽需要大量混凝土，水泥生产与砂石骨料运输都带来大量碳排放，温控是巨大难题。我们从原材料、运输、搅拌、养护到长期温度监控实现全流程把关，并引入再生低碳材料，借助自然界多孔结构开发出多孔混凝土，既减少用量又减轻水化热压力，置换率可达 14%，注水条件下能显著降低温峰。针对青年枢纽海水上溯带来的氯离子侵蚀，以及马道、企石枢纽的收缩徐变问题，我们提出 "超百年" 耐久性设计。我们还提出组合混凝土，或者叫梯度混凝土的概念，以 "金包银" 方式把高性能混凝土放在外侧、性能稍弱的放在内侧，既提升结构性能，又降低造价与碳排放，同时满足耐久性要求。The Ma Dao, Qi Shi, and Qingtong hubs require a large amount of concrete. The production of cement and the transportation of sand and gravel aggregates both result in significant carbon emissions; maintaining appropriate temperatures is a major challenge. We ensure full control over the entire process—from raw material acquisition and transportation to mixing and curing, as well as long-term temperature monitoring. We also use recycled, low-carbon materials and utilize the porous structure of nature to create porous concrete. This not only reduces the amount of material needed but also lowers the heat generated during hydration. The replacement rate can reach 14%, and the temperature peaks can be significantly reduced under water-filled conditions. To address the chloride corrosion caused by seawater intrusion at the Qingtong hub, as well as the shrinkage and creep issues at Ma Dao and Qi Shi hubs, we propose a “super-century” durability design. We also introduce the concept of composite concrete, or gradient concrete: high-performance concrete is placed on the outer layer, while less efficient concrete is placed on the inner layer. This approach improves structural performance while reducing costs and carbon emissions, all while meeting the requirements for durability.

建造平陆运河要拆途经的20多座桥梁，我们在原位对拆下的混凝土破碎筛分，形成再生粗骨料、再生细骨料与再生粉料，重新用于新混凝土制备，并做成保通桥和永久桥梁 —— 这在我国桥梁建设史上尚属首次。大量再生混凝土还用在了护坡、挡土墙等部位，再生骨料也进入沿线低矮房屋等建筑工程中。开挖产生 的3.15 亿立方米渣土，我们结合人工智能与 5G 技术搭建数字化平台，实现快速识别、快速调运、安全堆存和高效复垦。既实现高效处置，又让弃土 "重生"，为沿线农业、工业、商业发展储备了大量土地。The construction of the Pinglu Canal required the demolition of more than 20 bridges along the route. We crushed and separated the concrete that was removed from its original locations, producing recycled coarse aggregate, recycled fine aggregate, and recycled powder. These materials were then used again in the production of new concrete, as well as in the construction of bridges that remain in use and permanent bridges – this is a first in the history of bridge construction in our country. A large amount of recycled concrete was also used for slope protection and retaining walls, while the recycled aggregates were incorporated into construction projects such as low-rise houses along the route. The 315 million cubic meters of waste soil generated during the excavation process was processed using digital platforms based on artificial intelligence and 5G technology. This allowed for rapid identification, efficient transportation, safe storage, and effective reclamation of the waste soil. In this way, efficient disposal was achieved, and the waste soil was “reborn”, providing a large amount of land for agricultural, industrial, and commercial development along the route.

平陆运河穿越多个生态敏感区，有山、有江、有海，是一个完整的系统。沿线分布着大量红树林，海洋生物也亟需守护，海水上溯还会带来一系列环境变化，这些都不可回避。为此，我们对古树的移植、红树林的保护、海洋养殖业的发展，都做了详细的技术设计，让绿色真正贯穿工程始终。另外，我们还在沿线布局了大量光伏发电项目，并统筹风能、光能、水能等，为平陆运河的运维提供绿色低碳的能源。The Pinglu Canal passes through several ecologically sensitive areas. It includes mountains, rivers, and the sea – forming a complete ecosystem. There are numerous mangroves along its route, and marine life also needs to be protected. The rise of seawater can also cause various environmental changes; these issues cannot be ignored. Therefore, we have developed detailed technical plans for the transplantation of ancient trees, the protection of mangroves, and the development of marine aquaculture, so that sustainability is truly integrated throughout the project. In addition, we have installed a large number of photovoltaic power generation facilities along the canal, and we also utilize wind, solar, and water energy sources to provide green and low-carbon energy for the operation and maintenance of the Pinglu Canal.

平陆运河是多学科交叉融合的范例，涵盖水运、水利、土木、桥梁、材料乃至管理与经济。我们为此召开论坛、创办平陆运河创新论坛，出版《前瞻科技》专辑与科普书《走进绿色平陆运河》。广西大学的土木工程是世界一流学科，平陆运河建设的全过程我们都参与其中。在参与建设中我们培养了人才，形成了 "绿色大工程观" 的教育理念。我们呼吁培育运河的新质生产力，充分实现它的战略与安全价值、生态与人文价值、经济与社会价值。The Pinglu Canal is an example of interdisciplinary integration, covering aspects such as water transportation, water management, civil engineering, bridges, materials, as well as management and economics. To this end, we have organized forums, established the Pinglu Canal Innovation Forum, published a special issue of “Future Technology” magazine, and produced the popular science book “Exploring the Green Pinglu Canal”. The civil engineering department at Guangxi University is a world-class field; we were involved in every stage of the construction of the Pinglu Canal. Through our participation in the construction process, we have trained professionals and developed the educational concept of “green large-scale engineering”. We call for the development of new productive forces related to the canal, so that its strategic and security values, ecological and cultural values, as well as economic and social values can be fully realized.

（大运河新闻热线：18611735190）

制作 曹宇

编校 延晨 徐蓉

一审 桂艳 张莉

二审 肖东 董明

三审 晖军