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1956年6月我担任修筑“且未公路”的技术指导工作。这段路系在流砂地区,地面为石子戈壁,布满了砂包,因而在这个地区要保证修好的道路不被流砂埋没是一项重要的任务。在处理流砂方面,苏联有着丰富的经验。为了做好这一段路线的防砂工作,我们在施工前学习了苏联的先进经验,并结合当地的实际情况作出了一个初步的实施方案。现在就将我们在进行这一工作中的几点体会介绍在下面。 (一)关于路基的横断面问题苏联修筑流砂区公路的经验告诉我们,在流砂地区的路基横断面,最好做成不高的路堤,避免修成路堑,并要有平滑的路基、路肩和路旁地带。同时也指出用担坡方法来改变路堑的透风顺滑程度,不可能完全消除积砂。根据我们
June 1956 I was working as a technical instructor in building “Off-Highway”. This section of the system is in the area of quicksand, the ground is the Gobi Stones, covered with sand packs, so in this area to ensure that repaired roads are not sand buried is an important task. The Soviet Union has a wealth of experience in handling quicksands. In order to do a good job in this section of the course of sand control work, we studied the advanced experience of the Soviet Union prior to construction and combined with the local situation to make a preliminary implementation plan. Now let us introduce some of the experiences in this work below. (I) Cross-sectional Problems with Subgrade The experience of the Soviet Union to build roads in the area with quicksand tells us that it is better to make low embankments in the cross-section of the roadbed in the area where the sand is flowing, to avoid cutting the road and to have smooth subgrade, shoulder and road Next to the zone. At the same time, it is pointed out that it is impossible to completely eliminate the sand by using the slope-protecting method to change the smooth and slippery air-permeability of the cutting. According to us