关键词: 洞室群, 施工期, 安全监测, 施工期监测自动化, 安全预警

Abstract: Timely and accurate information about the safety status of underground powerhouse cavern during excavation of construction is needed for construction guidance and design feedback. To play the role of safety monitoring and early warning, the establishment of temporary automatic monitoring system before excavation of the underground powerhouse cavern of Shuangjiangkou hydropower station is of great importance, which aims to monitor the deformation of surrounding rock caused by relief of high ground stress and blasting, as well as to adjust the support force. This paper mainly introduces the design, planning and warning measures of the temporary automatic monitoring system of Shuangjiangkou hydropower station, for reference.

Key words: cavern group, construction period, safety monitoring, automatic monitoring during construction period, safety warning