8月23日，重庆万州电厂二期扩建项目冷却塔环基第一仓混凝土顺利开始浇筑，这标志着本项目冷却塔工程建设自此由基础开挖全面转入主体结构施工阶段。

On August 23rd, the first batch of concrete for the foundation of the cooling tower ring of the second phase expansion project of Chongqing Wanzhou Power Plant was successfully poured. This marked that the construction of the cooling tower of this project has now completely shifted from foundation excavation to the main structure construction stage.

受制于现场场地布局条件，重庆万州电厂二期扩建工程创新采用“两机一塔”高位收水冷却塔设计，风筒总高239.51米，单体淋水面积达22900平方米，且创新性将循环水泵房整体内嵌于冷却塔内部。整体结构具备体量超大、高度超高、基坑超深的特点，人、材、机统筹调配难度大，现场施工工艺复杂、管控标准严苛，施工技术与组织管理难度均处于行业较高水平。

Due to the constraints of the on-site site layout conditions, the second-phase expansion project of Chongqing Wanzhou Power Plant innovatively adopted the "two turbines and one tower" high-position water collection cooling tower design. The total height of the wind duct is 239.51 meters, and the single unit's water spraying area reaches 22,900 square meters. Moreover, the circulating water pump room was innovatively integrated entirely within the cooling tower. The overall structure features an extremely large volume, an extremely high height, and an extremely deep foundation pit. The coordination of personnel, materials, and machinery is extremely challenging, and the on-site construction techniques and management standards are extremely strict. The difficulty in construction technology and organizational management is at a relatively high level in the industry.

作为项目三大核心工期主线之一，需与锅炉、汽机安装工程同步统筹推进，且必须保障三号机组投产时同步投运。为高效攻克冷却塔施工重难点，该厂党委成立二期扩建项目各参建单位联合临时党支部，充分参考行业同类型“超大塔”施工成功经验，开展多轮专题研讨、技术复盘与方案优化，针对项目凝聚智慧工地建设、西南地区复杂地基不均匀沉降控制、超大超高风筒施工质量管控、大体积混凝土温控防裂、高空作业安全管控等八大核心施工难题，逐一细化技术措施、明确管控标准、压实管理责任，形成《万州电厂二期扩建项目冷却塔施工安全质量专项策划》，为冷却塔全流程标准化、规范化、精细化施工提供系统的纲领性技术支撑文件，切实发挥“党建+安全”“党建+工程”深度融合，保障项目全速推进可控在控。

As one of the three core project schedule lines, it needs to be coordinated and advanced in parallel with the installation projects of boilers and steam turbines, and it is necessary to ensure that the No. 3 unit is put into operation simultaneously. To efficiently overcome the key and difficult points in the construction of the cooling tower, the Party Committee of this plant established a joint temporary Party branch of all participating units of the second-phase expansion project. It fully referred to the successful construction experience of similar "super large towers" in the industry, conducted multiple rounds of special discussions, technical reviews and scheme optimizations. It targeted the eight core construction problems of the project, such as the construction of the cooling tower, the control of uneven settlement of complex foundations in the southwest region, the quality control of super large and super tall wind towers, the temperature control and crack prevention of large-volume concrete, and the safety control of high-altitude operations, and detailed technical measures, clarified control standards, and strengthened management responsibilities. A "Special Planning for the Construction Safety and Quality of the Cooling Tower of the Second-phase Expansion Project of Wanzhou Power Plant" was formed, providing a systematic and guiding technical support document for the standardized, standardized and refined construction of the cooling tower throughout the process. It truly realizes the deep integration of "Party building + safety" and "Party building + engineering", ensuring that the project can be advanced at full speed under controllable and manageable conditions.

本次施工的冷却塔环基结构宽11米、厚2.3米，整体混凝土总方量15000立方米，工程采用分段跳仓法施工工艺，共划分25个施工仓段，单仓浇筑方量600立方米，属于典型大体积混凝土结构。针对重庆地区高温高湿、温差变化大的特殊气候特点，项目针对性布设水冷管智能温控体系，精准管控大体积混凝土水化热温升，有效消解结构温度应力、防范混凝土裂缝病害，从技术源头筑牢混凝土施工质量防线，保障结构施工安全优质。

The foundation structure of the cooling tower in this project is 11 meters wide and 2.3 meters thick. The total volume of concrete is 15,000 cubic meters. The construction process adopts the segmented jump-lag method. A total of 25 construction sections are divided, with each section having a pouring volume of 600 cubic meters. It is a typical large-volume concrete structure. Considering the special climatic characteristics of high temperature and high humidity, as well as large temperature differences in Chongqing, the project has specifically set up an intelligent temperature control system for water cooling pipes to precisely control the temperature rise of the large-volume concrete during hydration. This effectively reduces structural temperature stress and prevents concrete cracking. From the technical perspective, it builds a solid foundation for the quality control of concrete construction and ensures the safety and quality of the structural construction.

此次冷却塔环基首仓混凝土顺利浇筑完成，是重庆万州电厂二期扩建项目建设进程中极具里程碑意义的重大突破。不仅充分验证了前期专项施工策划的科学性、可行性，为后续超大体量冷却塔主体结构施工积累了宝贵的实战经验，也为项目整体按期优质竣工投产奠定了坚实基础。重庆万州电厂将根据集团公司的批复要求全力实现“两不超、三个零”，努力打造“工期短、造价低、质量优、效益好”的精品工程。

The first batch of concrete for the cooling tower foundation was successfully poured this time, which is a significant milestone achievement in the construction process of the second-phase expansion project of Chongqing Wanzhou Power Plant. It not only fully verified the scientificity and feasibility of the previous specialized construction planning, but also accumulated valuable practical experience for the subsequent construction of the super-large volume cooling tower structure. Moreover, it laid a solid foundation for the overall project to be completed and put into operation on schedule and with high quality. Chongqing Wanzhou Power Plant will fully implement the requirements of the group company's approval, striving to achieve "two no-exceeds, three zeros", and endeavor to build a "short construction period, low cost, high quality, good efficiency" high-quality project.