崩解岩保护层精准开挖施工技术

Precise Excavation Construction Technology of Protective Layer of Disintegrating Rock

引江济淮工程江淮沟通段穿越江淮分水岭,沿线地质条件复杂,渠道底部为崩解岩。为解决渠道崩解岩基础保护层开挖不平整度、超欠挖不易控制问题,文章提出了“采用基于CNSS和地理信息技术的无人机倾斜摄影测量技术+铣刨机”用于崩解岩保护层精准开挖施工的方法。对开挖面不同的角度进行数据采集、分析后,将导出数据实时传输给铣刨机操作手,为精准、高效控制崩解岩保护层开挖提供参考。

Jianghuai communication section of Yangtze-to-Huaihe Water Diversion Project penetrates through Jianghuai watershed.The geological conditions along the section are complicated.The bottom of the channel belongs to disintegrating rock.It is proposed in the paper that the method of“using UAV tilt photogrammetry technology based on CNSS and geographic information technology+milling machine”for the precise excavation and construction of the protective layer of disintegrating rock in order to solve the unevenness problems of protective layer excavation of channel disintegrating rock foundation and the difficulty in controlling the over-excavation or under-excavation.The derived data are transmitted to the milling machine operator in real time after data collection and analysis of different angles of the excavation face,thereby providing reference for precise and efficient control of excavating the protective layer of disintegrating rock.