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TRANSPORTATION EARTHWORKS.
| 题名： | TRANSPORTATION EARTHWORKS. |
| 作者： | Sutterer-KG |
| 关键词： | BACKFILLING-; CONSTRUCTION-; CUTTING-EARTHWORK; DESIGN-; EARTHWORK-; EXCAVATION-; GEOTECHNICAL-ENGINEERING; GRADING-EARTHWORK; RECYCLED-MATERIALS; RESEARCH-; SYNTHETICS-; TRANSPORTATION- |
| 摘要： | Since the invention of the wheel, inventors and innovators have sought to develop land-based vehicles and transportation systems that travel faster and carry more goods or passengers with greater comfort. A critical barrier to achieving this goal has been providing the energy required to overcome gravity when traveling from one elevation to another. Railroads, roadways, tunnels, and canals are constructed across a region only if earthwork can efficiently and cost-effectively provide the necessary grade for the vehicles and the surfaces on which they will travel. The research challenges in transportation earthworks include chemical and mechanical ground improvement for undesirable soil conditions, improved construction processes, behavior modeling, and use of synthetic or recycled materials. The challenges to design and construction will continue to be reduced cost, efficient construction, improved quality control, enhanced performance, and minimal maintenance. A successful engineering research initiative pursues understanding and solutions by means of interrelated techniques, including study of the state of the art and reliable existing data, incorporation of fundamental physical principles, model development, laboratory studies, field verification, and observation of performance. Research involving all of these elements is needed in three key areas related to earthworks: improved design, modeling, and construction processes; mechanical and chemical ground improvement; and use of recycled or synthetic materials. This paper reviews these three areas. |
| 总页数： | Transportation in the New Millennium. 2000. pp5 |
| 报告类型： | 科技报告 |
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