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- W610423917 abstract "This paper describes how a 41,000 cubic yard landslide occurred during the construction of the Howelson Hill Ski Jump Complex in Steamboat Springs, Colorado on July 14, 1976. The slide involved only surficial deposits which overlie the Morrison formation. The landslide area and all jump profiles were reanalyzed to determine the cause of the landslide and the implications and the implications that the slide might have on the original jump complex design. Extensive additional subsurface exploration and sampling were conducted and a geological interpretation of all data was made. Stability analyses were then conducted using effective strength parameters as determined from laboratory testing. Infinite slope, circular, and non-circular failure surfaces were considered in the stability analysis. Correlation of the geology and strength parameters was made to assess the probability of similar slides in the adjacent jump areas. It was concluded that the slide was localized in an area of previous instability and the geologic conditions were significantly different in the stable portions of the mountainside. Remedial measures were simplified to stabilize the landslide and some modifications in the original jump profile designs were made for the stable areas outside the landslide. The remedial measures in the slide area consisted of a stabilizing berm at the toe of the slide, surface and subsurface drains, and dressing of the slide surface. Design changes outside the slide area consisted of additional retaining walls and subsurface drains on the remaining jump profiles. As a result of these remedial measures and design changes, the landslide movement was effectively halted and construction continued on the reminder of the jump complex." @default.
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- W610423917 date "1977-04-01" @default.
- W610423917 modified "2023-09-26" @default.
- W610423917 title "Analysis of a Landslide during Construction of the Howelson Hill Ski Jump Complex, Steamboat Springs, Colorado" @default.
- W610423917 hasPublicationYear "1977" @default.
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