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Alternative Dredging and Disposal Methods for the Texas Gulf Intracoastal Waterway (GIWW); Research rept. Sep 96-Aug 98
| 题名： | Alternative Dredging and Disposal Methods for the Texas Gulf Intracoastal Waterway (GIWW); Research rept. Sep 96-Aug 98 |
| 作者： | Randall, R.; Edge, B.; Basilotto, J.; Cobb, D.; Graalum, S. |
| 关键词： | Waterway transportation; Dredging; Texas; Gulf Coast; Costs; Engineering; Dredged materials; Separation techniques; Pumping; Computer software; Pipes |
| 摘要： | A two-year project investigates the cost and engineering of long distance pumping, beneficial uses of Gulf Intracoastal Waterway (GIWW)-dredged material for the Texas coastal zone, separation techniques for GIWW-dredged material, optimum slurry flow, and alternatives for analyzing dredged material disposal. Fuel costs, dredge crew labor costs, routine maintenance and repairs, major repairs, overhead costs, depreciation, profit, mobilization and demobilization, and capital investment cost items are incorporated into a cost-estimating program for a cutter suction dredge. The Cutter Suction Dredge Cost Estimation Program (CSDCEP) estimates the production rate and cost of dredging projects. Comparisons with actual production rate and costs show CSDCEP is accurate. An attractive beneficial use of dredged material from the GIWW is manufactured soil, which can be manufactured using dredged material, recyclable organic water materials (sewage sludge), an bio-mass (cellulose or saw dust). The manufacturing and transportation costs are estimated at $13 to $20 per cubic yard depending on the blending method, mode of transportation, and ease of excavation. Another beneficial use is thin-layer disposal, spraying dredged material on adjacent wetlands. A geotube filled with dredged material can be placed along the Texas GIWW, and this can provide a beneficial use while preventing further inundation of wetlands due to erosion. |
| 总页数： | 300p |
| 报告类型： | 科技报告 |
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