原文传递
Design of reinforcement geosynthetics in landfill piggyback expansion
| 题名： | Design of reinforcement geosynthetics in landfill piggyback expansion |
| 正文语种： | eng |
| 作者： | Jean-Baptiste Duquet;Cedric Sarbach;Stephan Fourmont |
| 摘要： | The use of a soil-reinforced layer as a subgrade for a piggyback landfill ensures that the leachate barrier system of the new cell will remain functional over the long term. The designed and selected PVA reinforcement geosynthetic is a high-modulus woven geotextile made with high-tenacity yarns that exhibit a tensile strength of 2,570 pounds-force per inch (450 kN/m) at 6% strain. It creates a uniform repartition of the load on the old waste and controls the differential settlements. The high-tenacity yarns made of PVA permit the reuse of the bottom ash material (available on-site) as backfill material on the product. The methodology followed for the design of the reinforcement is already in use and described in several guides; however, the implementation of a monitoring system permits refining of the calculation and assumptions considered in the geotechnical model and confirm the expected behavior of the structure. |
| 出版年： | 2021 |
| 期刊名称： | Geosynthetics |
| 卷： | 39 |
| 期： | 3 |
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