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S519羊温线灾毁工点恢复重建工程研究
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作者 赵永江 《交通世界》 2023年第22期74-76,共3页
S519羊温线两灾毁工点发生较大的路基沉降、挡墙外倾,存在一定安全隐患,需采取相应措施处治。对灾毁工点进行地质调查,分析灾毁原因,结果表明,K114+400—K114+500段左侧路基沉降原因为原坡面长期滑坡导致的覆盖层较厚,路基填料较差,压... S519羊温线两灾毁工点发生较大的路基沉降、挡墙外倾,存在一定安全隐患,需采取相应措施处治。对灾毁工点进行地质调查,分析灾毁原因,结果表明,K114+400—K114+500段左侧路基沉降原因为原坡面长期滑坡导致的覆盖层较厚,路基填料较差,压实度不够;K148+400—K148+500段路基沉降原因为暴雨工况下原挡墙失稳破坏;对K114+400—K114+500段采取抗滑桩加固滑坡,K148+400—K148+500段的挡土墙进行重新设计和加固,并设置抗滑桩,使路基沉降灾害得到治理,保证公路的运行安全。研究结果可为此类灾毁工点治理提供参考。 展开更多
关键词 公路恢复重建 灾毁工点 路基维修 抗滑桩 挡土墙
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Study on Expressway Road-area Ecosystem
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作者 Z.B. Qin Z.H. Liu Y.Z. Li 《Journal of Environmental Science and Engineering》 2010年第3期64-69,共6页
Ecological restoration and reconstruction refers to how to prevent the main factors and processes from further degrading the ecosystem, as well as how to regulate and optimize the exchanging process and the space-time... Ecological restoration and reconstruction refers to how to prevent the main factors and processes from further degrading the ecosystem, as well as how to regulate and optimize the exchanging process and the space-time cycling system of substance, energy and information through man force, in order to restore the structure, function and eco-potentiality back to the original level or even higher, with the help of certain biological, ecological and engineering techniques. Ecological restoration and reconstruction involves problems of different levels and different fields, with the focus on the ecosystem (species communities), the landscape and certain areas. Problems in the process of road-area ecosystem construction are as follows: attention is paid to the conditions of the road itself and the short-term effects, not to the natural propagation of species within the whole road-area or the ecological safety area; the importance of biological diversity in ecological restoration is neglected; the property of heterogeneity necessary for a sound ecosystem is ignored; the ecological interaction among species doesn't earn enough attention; properties like localization and adaptability in different districts are not paid enough attention. Landscape ecology can guide the work of road-area ecosystem restoration, through the space pattern. 展开更多
关键词 Expressway road ecological restoration ecological reconstruction.
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