220 m级高土质边坡快速施工关键技术研究  

Key Technologies for Rapid Construction of 220-meter High Soil Slopes

作　　者：赵华勇 ZHAO Huayong(China Gezhouba Group No.1 Engineering Co.,Ltd.,Yichang 443002,China)

机构地区：[1]中国葛洲坝集团第一工程有限公司,湖北宜昌443002

出　　处：《水电与新能源》2024年第12期4-6,共3页Hydropower and New Energy

摘　　要：海南迈湾水利枢纽工程主坝土质边坡高220 m,支护形式复杂。针对高土质边坡快速施工难点,本研究提出了多个小台阶多个支护面同步施工工法,通过试验优化了锚索施工工艺和锚墩模板施工工艺,形成了一套适用于热带季风气候高土质边坡锚杆、锚索施工工艺,提高了边坡开挖支护施工质量及进度,边坡开挖支护完工时间较总进度计划提前近2个月。该研究可为今后高土边坡快速施工提供参考。The soil slopes at the abutments of the main dam in Maiwan Water Conservancy Project in Hainan Province are of 220 meter high and with complex support structures.To address the challenges in rapid construction of the high soil slopes,a synchronous construction method with multiple small steps and support surfaces is proposed.The construction processes of the anchor cables and the anchor piers are optimized with experiments,and a set of construction techniques of anchor cables and anchor piers suitable for high soil slopes in tropical monsoon climate is obtained.The techniques improve the quality and progress of the slope excavation and support construction.The completion time of the slope excavation and support construction is nearly 2 months earlier than the overall schedule.The research provides useful reference for the rapid construction of high soil slopes in the future.

关 键 词：220 m级 高土质边坡 快速施工 关键技术 水利枢纽 

分 类 号：TV641.2[水利工程—水利水电工程]