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Relocation of the Cape Hatteras Light Station: Move Route Design and Construction

Tice, J. Allan / Knott, Randy A.

Relocation of the Cape Hatteras Lighthouse and associated structures across a coastal dune system was planned by the National Park Service to protect the structures from continuing coastal erosion. The lighthouse is a masonry structure about 61m tall and weighing about 4,400 metric tons. Preparation of the loose sands along the move route required a combination of proofrolling, in—place densification and placement of compacted stone layers to control settlement during the move. A geotechnical site characterization program consisting of conventional exploratory borings supplemented by dilatometer testing and a large scale area load test was performed to determine the necessary ground improvement. Elastic analyses were performed to estimate settlements under the planned move system. Measurements of the deflections of the steel mats during the move were obtained and compared to predicted deflections.

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Relocation of the Cape Hatteras Light Station: Move Route Design and Construction

Tice, J. Allan / Knott, Randy A.

Relocation of the Cape Hatteras Lighthouse and associated structures across a coastal dune system was planned by the National Park Service to protect the structures from continuing coastal erosion. The lighthouse is a masonry structure about 61m tall and weighing about 4,400 metric tons. Preparation of the loose sands along the move route required a combination of proofrolling, in—place densification and placement of compacted stone layers to control settlement during the move. A geotechnical site characterization program consisting of conventional exploratory borings supplemented by dilatometer testing and a large scale area load test was performed to determine the necessary ground improvement. Elastic analyses were performed to estimate settlements under the planned move system. Measurements of the deflections of the steel mats during the move were obtained and compared to predicted deflections.

Relocation of the Cape Hatteras Light Station: Move Route Design and Construction

Tice, J. Allan / Knott, Randy A.

Relocation of the Cape Hatteras Lighthouse and associated structures across a coastal dune system was planned by the National Park Service to protect the structures from continuing coastal erosion. The lighthouse is a masonry structure about 61m tall and weighing about 4,400 metric tons. Preparation of the loose sands along the move route required a combination of proofrolling, in—place densification and placement of compacted stone layers to control settlement during the move. A geotechnical site characterization program consisting of conventional exploratory borings supplemented by dilatometer testing and a large scale area load test was performed to determine the necessary ground improvement. Elastic analyses were performed to estimate settlements under the planned move system. Measurements of the deflections of the steel mats during the move were obtained and compared to predicted deflections.

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Title:

Relocation of the Cape Hatteras Light Station: Move Route Design and Construction

Contributors:

Tice, J. Allan (author) / Knott, Randy A. (author)

Conference:

Geo-Denver 2000 ; 2000 ; Denver, Colorado, United States

Published in:

Soil-Cement and Other Construction Practices in Geotechnical Engineering ; 51-66

Publication date:

2000-07-24

ISBN:

DOI:

https://doi.org/10.1061/40500(283)5

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Elastic analysis , Routing , Construction methods , Masonry , Soft soils , Historic sites , Subsurface investigations , Geotechnical engineering , Relocation , Soil stabilization , Soil cement , Civil engineering landmarks , Coastal structures

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