摘要
研究了国道219线新疆接西藏段阿克赛钦湖区新生代高山湖盆的构造演化及沉积物岩相分带,利用地质调查、钻探、物探、试验等工作成果,对公路展布带及地基影响深度范围内的特殊性工程盐渍土的盐渍化类型、程度、盐胀性,冻土的类型、融沉性、盐渍化冻土进行了研究与分类。综合评价了特殊土的工程性能和对公路工程的影响程度,为改建公路的选线和路基设计提供了依据,并提出了经济合理、可行的特殊土工程整治措施。
The 219 national highway connecting Xinjiang and Tibet passes through Arcsaiqin basin. The tectonic evolution and lithofacies zonation of sedimentation of this Cenozoic alp and lake basin are studied. Based on the results from geological investigation, drilling, geophysical prospecting and test, the special soils in the range of highway construction, like the type and degree of salinization, the expanding property of salinized soil, and the types and melting character of frozen earth as well as the salinization of frozen earth are studied. The effect of these special soils on the highway project is synthetically evaluated. Suggestion about the routine selection of reconstructed highway and the design of roadbed are given. The economical and practical measures to the treatment of the special soils are brought forward.
出处
《地球科学与环境学报》
CAS
2006年第1期65-69,共5页
Journal of Earth Sciences and Environment
基金
交通部国道219线新藏公路改建勘察项目(2002-59)
关键词
国道219线
高山湖盆
沉积物
岩相分带
特殊性岩土
公路选线
路基设计
219 national highway
lake basin on high moutain
lithofacies zonation of sedimentation
special soil
routine selection of highway
design of roadbed
