斯登眉登Ⅱ级水电站隧洞单端进尺再破新高- 大数跨境

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斯登眉登Ⅱ级水电站隧洞单端进尺再破新高

华飞安和集团

2024-07-07

导读：继2024年4月柬埔寨斯登眉登Ⅱ级水电站隧洞单个掌子面单月掘进突破200.8m成绩后。2024年6月，斯登眉登Ⅱ级站1#支洞下游隧洞单个掌子面单端进尺突破219.7m，再创新高！在我司水电站建设史上谱

斯登眉登Ⅱ级水电站隧洞单端进尺再破新高
The Tunnel of STMT II Station’s has Reached a New High Record

继2024年4月柬埔寨斯登眉登Ⅱ级水电站隧洞单个掌子面单月掘进突破200.8m成绩后。2024年6月，斯登眉登Ⅱ级站1#支洞下游隧洞单个掌子面单端进尺突破219.7m，再创新高！在我司水电站建设史上谱写出了又一壮丽篇章。

Following the achievement in April 2024, when a single tunnel face at the Steung Meteuk II Hydropower Station in Cambodia surpassed a monthly excavation record of 200.8 meters, another milestone was reached in June 2024. The downstream tunnel face of Branch Tunnel No. 1 at Steung Meteuk II achieved a new record with an excavation progress of 219.7 meters in a single month. This marks a new high and writes another magnificent chapter in the history of our company's hydropower station construction.

项目部紧紧围绕总目标，将引水隧洞作为控制性关键工程抓手，克服在掘进过程中面临地质条件复杂、围岩类型多次变化、岩石硬度不均技术难题；在施工组织上面临设备性能有限、作业人员国籍不同等困难。项目部采取一系列措施，有效保障隧洞施工安全顺利推进，隧洞开挖进度比计划开挖工期整体提前2个多月，为项目取得佳绩提供强力支撑。

The project team, closely adhering to the overall objectives, has focused on the diversion tunnel as a critical control project. They have overcome technical challenges such as complex geological conditions, frequent changes in rock types, and uneven rock hardness during the excavation process. Additionally, they have addressed difficulties in construction organization, including limited equipment performance and the different nationalities of the workforce. By implementing a series of measures, the project team has effectively ensured the safe and smooth progress of tunnel construction. The excavation progress of the tunnel is now more than two months ahead of the planned schedule, providing strong support for the project's outstanding achievements.

项目部团队精心组织策划，充分发挥集体智慧，在施工中不断优化施工组织，调整技术方案，及时有效地解决了掘进中的难题，大大提高掘进效率，提升项目整体进度风险应对能力。隧洞开挖断面为43平米，调整合理布孔，严格施行光爆，每轮钻孔110余个，每孔深3.5m，达到超欠挖控制良好效果。现场出渣配备50侧翻装载机1台，215挖机1台用于出渣及排险，平均每轮出渣5小时。同时，项目部合理安排，采取人员、设备循环施工作业的方法，现场每轮配备中国钻工5人，越南钻工7人，台车分三阶7把风钻同时钻孔，平均每轮钻爆时间4小时，2天完成5轮进尺。隧洞开挖进度、质量、安全等，得到了属地监管单位及监理单位的一致认可。

The project team meticulously organized and planned, leveraging collective wisdom to continually optimize construction organization and adjust technical plans during the construction process. This approach has promptly and effectively resolved excavation challenges, significantly improving excavation efficiency and enhancing the project's overall progress risk response capability. The tunnel excavation cross-section is 43 square meters, with hole placement adjusted appropriately and strict implementation of smooth blasting. Each drilling cycle involves more than 110 holes, each 3.5 meters deep, achieving excellent over-excavation and under-excavation control. The site is equipped with one 50-side dump loader and one 215 excavators for muck removal and hazard mitigation, with an average muck removal time of 5 hours per cycle. Additionally, the project team has efficiently arranged personnel and equipment, adopting a method of cyclical construction operations. Each cycle involves 5 Chinese drillers and 7 Vietnamese drillers on site, with the drilling rig equipped with seven pneumatic drills operating simultaneously. The average drilling and blasting time per cycle is 4 hours, completing 5 excavation rounds in 2 days. The excavation progress, quality, and safety of the tunnel have received unanimous recognition from local regulatory and supervisory units.

柬埔寨斯登眉登Ⅱ级水电站

风正海阔千帆竞，百尺竿头再攀登。下一步项目部将继续加大现场管理力度，“重安全、保质量、抓进度、创口碑”，秉承“短工期”经营理念，彰显“安和速度”，坚守初心，始终保持高昂的斗志和严谨的态度，以更加饱满的热情投入工作，再接再厉，为电站顺利投产继续战斗！

With favorable winds and vast seas, a thousand sails compete, and we climb to new heights. In the next phase, the project team will continue to strengthen on-site management efforts, focusing on "ensuring safety, maintaining quality, adhering to schedule, and building reputation." Upholding the "short construction period" operational philosophy and demonstrating the "Anhe Speed," the team will stay true to its original mission, maintaining high morale and a rigorous attitude. With even greater enthusiasm, they will press on and redouble their efforts, continuing to work tirelessly for the smooth commissioning of the power station.

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