论文部分内容阅读
结合哈罗铁路,针对岩盐盐胀、盐溶、松胀等不利工程特性,确定了硫酸岩盐路基施工技术。通过建立路基试验段,选用了重型碾压、冲击碾压、重锤夯实、换填4种硫酸岩盐路基基底处理方法,提出了利用岩盐作为路基填料的填筑方法。埋设沉降板,观测了工后沉降。经过现场观测数据可以发现4种处理方法路基基底变形量都可满足规范的要求,从经济性方面综合考虑,建议采用施工成本最低的重型碾压法作为岩盐路基基底的处理方法,验证了利用岩盐作为路基填料的可行性。并分析了岩盐路基本体的变形特征。
Combined with Harrow Railway, aiming at the unfavorable engineering characteristics of salt rock bulge, salt solution and bulge, the construction technology of rock salt rock subgrade was determined. Through the establishment of roadbed test section, the selection of heavy rolling, impact rolling, hammer ramming, replacement of four kinds of sulfate rock salt roadbed treatment method, the use of rock salt as a roadbed filler filling method. Laying the settlement plate, observed post-construction settlement. Through the field observation data, it can be found that the four kinds of treatment methods can meet the requirements of the specification of roadbed deformation. Considering economy, it is suggested to adopt the heavy rolling method with the lowest construction cost as the treatment method of rock salt roadbed basement. As a subgrade filler feasibility. The deformation characteristics of rock salt road base are analyzed.