关键词: 300 m级高土石坝, 柔性测斜仪, 垂直和水平位移, 监测

Abstract: For safety monitoring of 300-meter super high earth-rock dams, the traditional instruments have difficulties to meet the technical requirements in aspects such as monitoring of horizontal displacement and vertical displacement in the core wall, as well as vertical displacement monitoring of upstream rockfill zone during water impoundment and operation. Currently, there are no effective monitoring methods domestic and abroad. This paper puts forward a new method for monitoring of both horizontal and vertical displacement of the core wall, and the vertical displacement of upstream rockfill zone by using the flexible inclinometer. The working principle of the instrument and its monitoring scheme are introduced in detail, worth reference.

Key words: 300-meter high earth-rock dam, flexible inclinometer, vertical and horizontal displacement, monitoring