江苏省徐州专区于1958年在通榆汾线青口至汾水段加铺简易路面时,其中有一段系试铺的砂土路面。经初步计算,砂土路面比砾石路面每公里的铺工可以节省300个工日,该试验路段于1958年十二月底完工后,均晴雨通车,迄今已经过3000多个车次和雨雪冰冻的考验,证明效果良好。目前除有极个别的局部不均沉陷外其余皆平整坚实,能保持每小时45～50公里的车速。现将摸索到的经验,作如下介 Xuzhou area in Jiangsu Province in 1958 in Tongyu Fen line Qingkou to Fen water paved simple pavement, which is a section of the shop on the pavement of the pavement. After preliminary calculation, the sand pavement can save 300 man days per kilometer of gravel pavement. After the test section was completed at the end of December 1958, it was opened to traffic and so far it has passed more than 3,000 trips and snow and ice freezing Test, prove effective. At present, except for a few local subsidence subsidences, the rest are even and solid, maintaining a speed of 45-50 km per hour. Now groping experience, as follows