Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Structural Stability Evaluation, Pine River Dam
A stability analysis was conducted for a typical interior monolith of Pine River Dam for the following load cases: (1) Normal operation; (2) Normal operation with truck loading (H15-44); (3) Normal operation with earthquake; (4) Normal operation with ice; and (5) High-water condition. A conventional stability analysis (rigid body assumption) was conducted to determine the approximate magnitude of the loads acting on the top of the piles, which support the dam piers. The compressive forces, tensile forces, and deflections predicted for the piles for all load cases were acceptable. However, the shear stresses at the top of the piles and stresses in certain piles were predicted greater than the allowable values. Therefore, it is recommended that a slant-hole, soil anchor system be used to induce compressive forces that will cause the shear and flexural stresses to be below allowables. From tests on cores, it was determined that the unconfined compressive strength (5600 psi) was adequate. There appears to be some variation in quality of the interior concrete, but it should not be detrimental as long as it does not affect the posttensioning construction. Surface concrete deterioration should be repaired. After the slant-hole soil anchors are installed and the deteriorated concrete surfaces repaired, the useful life of the dam will be appreciably lengthened.
Structural Stability Evaluation, Pine River Dam
A stability analysis was conducted for a typical interior monolith of Pine River Dam for the following load cases: (1) Normal operation; (2) Normal operation with truck loading (H15-44); (3) Normal operation with earthquake; (4) Normal operation with ice; and (5) High-water condition. A conventional stability analysis (rigid body assumption) was conducted to determine the approximate magnitude of the loads acting on the top of the piles, which support the dam piers. The compressive forces, tensile forces, and deflections predicted for the piles for all load cases were acceptable. However, the shear stresses at the top of the piles and stresses in certain piles were predicted greater than the allowable values. Therefore, it is recommended that a slant-hole, soil anchor system be used to induce compressive forces that will cause the shear and flexural stresses to be below allowables. From tests on cores, it was determined that the unconfined compressive strength (5600 psi) was adequate. There appears to be some variation in quality of the interior concrete, but it should not be detrimental as long as it does not affect the posttensioning construction. Surface concrete deterioration should be repaired. After the slant-hole soil anchors are installed and the deteriorated concrete surfaces repaired, the useful life of the dam will be appreciably lengthened.
Structural Stability Evaluation, Pine River Dam
C. E. Pace (Autor:in)
1981
100 pages
Report
Keine Angabe
Englisch
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