关键词: 溪洛渡水电站, 厂房, 蜗壳混凝土, 温控, 蜗壳变形, 监测

Abstract: This paper introduces the construction technology and temperature control of concrete on the spiral case in the underground powerhouse on the right bank of Xiluodu hydropower station. As well, the deformation monitoring technology is introduced here. Especially, effective measures are taken to ensure the plumpness and compactness of the concrete at the volute bottom and on the chock internal angle, which is important for operation safety. Further, the temperature change of the inner concrete is presented. Based on the experience learnt from Xiluodu project, the concrete construction technology of the spiral case of turbine is summarized for reference.

Key words: Xiluodu hydropower station, powerhouse, concrete volute, temperature control, volute deformationg, monitoring