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Natural Gas Encasement for Highway Crossings.
| 题名： | Natural Gas Encasement for Highway Crossings. |
| 作者： | Lindly, J.; Graettinger, A.; Smith, P.; Sherer, M.; Johnson, K. |
| 关键词： | Pipeline design, Hazardous liquid pipelines, Highway crossings, NATURAL GAS, Cased, Casing, Encasement, Alabama (state), Regulations, Policies, Code of Federal Regulations (CFR), Alabama Department of Transportation (ADOT) |
| 摘要： | The University Transportation Center for Alabama researchers examined the Alabama Department of Transportation’s current policy regarding the encasement of natural gas and hazardous liquid pipelines at roadway crossings. The group collected information from a variety of sources regarding the benefits and drawbacks of encasement, including current standards, state policies, interviews with utility company personnel and utility contractor personnel, academic and non-academic publications, and gas pipeline incident reports. Though PHMSA incident reports indicate that encasement reduces excavation damages, the group recommended that the encasement of natural gas and hazardous liquid pipelines should not be mandatory at highway crossings except for special situations already cited in the ALDOT Utilities Manual. Instead, natural gas and hazardous material pipeline designers should follow the Code of Federal Regulations (CFR) Title 49 Volume 3 -- Parts 192 and 195, respectively -- which by reference includes all the necessary standards for pipeline design. |
| 总页数： | Lindly, J.; Graettinger, A.; Smith, P.; Sherer, M.; Johnson, K. |
| 报告类型： | 科技报告 |
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