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https://hdl.handle.net/11681/47583| Title: | Perimeter dike raising with dewatered fine-grained dredged material at Upper Polecat Bay Disposal Area, Mobile, Alabama |
| Authors: | Haliburton, T. Allan Fowler, Jack, 1938- Langan, J. Patrick |
| Keywords: | Dredging spoil Dredged material Dikes (Engineering) Polecat Bay (Ala.) |
| Publisher: | U.S. Army Engineer Waterways Experiment Station |
| Series/Report no.: | Miscellaneous Paper (Dredged Material Research Program (U.S.)) ; no. D-78-3 |
| Abstract: | Use of dewatered fine-grained dredged material for large-scale perimeter dike raising was evaluated by a cooperative field demonstration between the U.S. Army Engineer District, Mobile, and the Dredged Material Research Program (DMRP) Disposal Operations Project (DOP) and Productive Uses Project. After conduct of the field demonstration, it was determined that: a). Fine-grained dredged material of high plasticity may be used successfully in large-scale dredged material disposal site perimeter dike-raising activities, once the material has been successfully dewatered with DMRP DOP-developed procedures. b.) The cost of dike raising with the dewatered fine-grained dredged material was less than estimated for use of offsite borrow, even though the demonstration site had good haul access. Cost of disposal area storage volume obtained was $0.27/cu yd; 1.2 million cu yd of disposal volume was created by the' dike raising. c.) Three different methods for dewatered dredged material borrow removal and three different methods for perimeter dike raising were evaluated. All methods were found to be technically feasible and operationally practical. Tandem dragline relaying was found to be the most cost-effective borrow alternative when sufficient crust volumes and disposal area surface crust support were available. Construction of fabric-reinforced haul roads to obtain interior dredged material borrow may be cost effective if tandem dragline operations cannot be conducted. A two-lift sequential dike-raising technique, whereby a dragline constructed a semicompacted first lift ahead and an uncompacted second lift behind while moving down the perimeter dike alignment, was found to be the most cost-effective dike-raising methodology. It is recommended that Corps of Engineers field elements and other interested agencies seriously consider the use of dewatered fine-grained dredged material for large-scale perimeter dike-raising activities, following the construction procedures described and evaluated in the report. Such construction may be extremely cost effective at remote locations where offsite borrow is particularly expensive. |
| Description: | Miscellaneous Paper |
| Gov't Doc #: | Miscellaneous Paper D-78-3 |
| Rights: | Approved for Public Release; Distribution is Unlimited |
| URI: | https://hdl.handle.net/11681/47583 |
| Appears in Collections: | Miscellaneous Paper |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Miscellaneous Paper D-78-3.pdf | 5.4 MB | Adobe PDF |  View/Open |