Research on the Quality Control Technology of Dam Shoulder Groove Project of Wudongde Hydropower Station. (May 2019)

• Record Type: Journal Article
• Authors: Ming, Ming; Liu, Yang
• Is Part Of: IOP conference series. Volume 283(2019)
• Publication Date: 2019-05
• Subjects: Wudongde Hydropower Station -- dam shoulder groove -- Quality Control Technology; Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/283/1/012056
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The shoulder groove project of Wudongde dam is a key program of the entire Wudongde Hydropower Project. The slope of the dam project is centered on the dam shoulder groove, where the upstream is the upstream shoulder and the power station intake, and the downstream is the downstream shoulder, plunge pool, second dam and downstream revetment. Therein, the excavation quality of the dam shoulder groove directly affects the long-term safety of the dam operation. The dam shoulder groove excavation elevation is 988m-718m, with the excavation height of about 270m, the excavation width of 18.32-51.42m, and excavation slope ratio of 1:0.21-1:9.2. The slope changes from steepness to slow, and there is no horse track set in the middle. Since the excavation quality directly affects the long-term safety of the dam operation, this paper deeply analyzes the influence factors of the relevant quality control requirements such as over-under-excavation, flatness, half-hole rate and blasting depth of the dam shoulder groove project of Wudongde Hydropower Station through integration and modularization of its key processes. This paper has a certain practical significance for the formation of the theoretical system and practical foundation of quality control technology for abutment trough of high slope dam of large hydropower station.