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高原地区海拔高空气稀薄、气候寒冷。由于海相沉积地带,以沉积岩类为主,因而造成显著特征一水对路基稳定的危害。泉水、潛水在该地区普遍存在,不仅在平地山麓甚至在高山顶梁都有出现,一到冬天到处都能看到银白耀光的冰堆流。水的出现有三种情况。1.泉水形成地表漫流,2.潛水(又可以分为两种情况:①由于潛水压力较小,未能冒出地表,②埋藏在较深地带由于覆土很深厚,潛水不能冒出地表),3.河水。这三种水在冬季都带来同一的危害性一延流冰。延流冰根据水源的不同可以分为泉水延流冰、潛水流冰、河流延流冰。延流冰的形成:如上所述,有水源的地方,一到冬天,流出地表的水受外界气温的影响开始冷却并逐
Plateau high altitude thin air, cold weather. Due to the marine sedimentary zone, sedimentary rock-based, resulting in a significant feature of water on the roadbed stability hazards. Spring water, diving in the area is widespread, not only in the foothills of the plains and even in the high mountain roof beams have emerged, one winter to see the glory of silver ice everywhere. The emergence of water in three cases. 1. The formation of surface water flow springs, 2. Diving (which can be divided into two situations: ① due to the diving pressure is small, failed to emerge from the surface, ② deep buried in the soil because the cover is very thick, diving can not emerge from the surface) River. All three kinds of water bring the same harmfulness to a flood of ice in winter. Extended ice according to the different water sources can be divided into spring extension ice, diving ice, river extension ice. Delayed ice formation: As mentioned above, where there is water, one in winter, the water flowing out of the surface starts to cool down by the influence of outside temperature