AEP 765 kV Transmission Line: Uplift Capacity of Shallow Foundations on Sloping Ground

Bazán-Zurita, Enrique; Williams, Dale M.; Bledsoe, Jay; Pugh, Archie D.; Newman, F. Barry

doi:10.1061/40790(218)20

Cited by 4 publications

(1 citation statement)

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“…e rapid development of national economy puts forward higher demand for the construction of transmission lines. When the lines pass through mountainous and hilly areas, the foundations of line towers must be built at or near a sloping ground [1]. In either case, the existence of slopes may cause the attenuation of load-bearing capacity of foundations.…”

Section: Introductionmentioning

confidence: 99%

Estimating the Uplift Bearing Capacity of Belled Piers Adjacent to Sloping Ground by Numerical Modeling Based on Field Tests

Yangchun

Cheng

Zheng

et al. 2020

Advances in Civil Engineering

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In order to evaluate the uplift bearing capacity of belled piers beside slopes, a series of numerical simulations are carried out based on field tests data. First, a number of uplift loading tests of full-scale belled piers are carried out on the project site of transmission line in Anhui Province, China. Second, a slope-foundation model for numerical modeling is proposed and calibrated based on field tests data. The behavior of belled piers adjacent to slopes subject to uplift load is studied by numerical modeling. The impact of three parameters, including distance (a) from the belled pier to the crest of the slope, slope angle (β), and embedment depth (h) of the belled pier, has been investigated on the uplift capacity of the belled pier. Based on the simulation results, an attenuation coefficient (ω) is put forward for evaluating the reduction of uplift bearing capacity of the belled pier. The results show that the coefficient ω is negatively correlated with distance a and depth h, and the influence of distance a is greater than that of depth h according to the results of variance analysis, but the difference is not significant by F test. Moreover, the empirical equation between attenuation coefficient ω and three key factors a, β, and h had been presented by a series of fitting.

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Section: Introductionmentioning

confidence: 99%