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Analysis on Slope Stability of Jinchuan Hydropower Station

Author: ShangJingHong
Tutor: ZuoWenWu
School: Lanzhou University
Course: Geological Engineering
Keywords: Hydropower Station Slope Three-dimensional model Network simulation Structural surface statistics Stability Analysis
CLC: TV221.2
Type: Master's thesis
Year: 2009
Downloads: 166
Quote: 1
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Abstract


The station is located in the Aba Tibetan and Qiang Autonomous Prefecture in Sichuan Province the Jinchuan territory, Jinchuan control projects upstream of the Dadu River mainstream. Barkam to Jinchuan oil line through the dam site on the right bank, the dam site, about 425km away from Chengdu, external transport is convenient. It is the Dadu River hydropower planning and adjustment of six hydropower stations, power generation engineering development tasks, the installed capacity of 860MW, (2) first-class large-type projects. The Slope Stability has been a very important issue in the construction of water conservancy and hydropower project. Not only does it directly determines the feasibility of the construction of the project, and affect the engineering construction investment and safe operation. Our country there have been dozens of hydroelectric engineering construction occurred slope instability problems, such as the the Tianshengqiao two hydropower factory high slope, Manwan Hydropower Station in Left Abutment high slope. For the governance of these slope not only consumes a large amount of money, and also delay the construction period, and some slope engineering has become even restricting the progress of the project and the key to success. Therefore, to accelerate the pace of scientific research of the Water Resources and Hydropower slope engineering study of slope stability and governance programs of great theoretical and practical significance. This paper emphasizes the geological the prototype site investigation and geological process analysis, detailed investigation of the rock mass structure of the dam site, based on meticulous research, through the types and causes of the destruction of the natural slope engineering geological conditions, slope structure, deformation, and then Intake Slope stability conditions focusing on the left bank of the diversion and power generation systems, the quality of the rock mass, rock mechanics parameters, possible deformation and failure mode and boundary conditions were analyzed; and fine measurements slope all adit structure surface, through 3D laser scanning, digital camcorders, box of ACCUTLOG and along the road structure surface statistics on the outcrop structural surface characteristic parameters as much as possible to get lots of slope; slope rockmass quality classification, analysis the future excavation revealed by the slope of the rock mass quality status; using three-dimensional models and structure of the surface of the disc model, excavation behind the slope grew up in the structure of surface spread position and uncertainty block stability assessment; using network simulation method to obtain the excavation slope structural plane the connectivity and strength parameters; Slope structure, weathering zone, rock fractions belt and corresponding mechanical parameters on slope stability, slope ratio; combined engineering engineering geological conditions of the slope, the instability mode of possible measures on the handling of proposals, and the engineering area cut slope and slope ratio demonstrated reliable geological evidence and supporting measures proposed for the engineering design.

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CLC: > Industrial Technology > Hydraulic Engineering > Hydraulic investigation of hydraulic design > Hydraulic investigations > Engineering geological and hydrogeological exploration
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