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河北省由香河至安平的公路全长13.3公里,系京塘公路的支线。由于这段路周围几十公里没有石料,沿线的土壤都是细砂土,所以每到雨季常被冲毁。为了改善这种天然土路状态,1956年春在这段路上铺装了3.5公尺宽的碎砖路面。碎砖路面铺好后,经过大雨冲刷和冰冻中的行车考验,没有发生变形,证实用碎砖改善土路是个很好的经验。碎砖路面的施工过程,是先确定原有路基标准,从路心划出3.5公尺的线来,再挖基槽(有些是培槽并行)。挖时要挖平找准,并留好土拱。成型后用轻汽碾(6吨)压实一次。对新填
The total length of the road from Xianghe to Anping in Hebei Province is 13.3 kilometers, which is the branch of Jingtang Highway. Due to the tens of kilometers of this section of the road there is no stone, along the soil are fine sand, so often washed away each rainy season. In order to improve the state of this natural dirt road, the spring of 1956 paved 3.5-meter-wide broken brick pavement on this road. Crushed brick pavement paved, after heavy rain erosion and freezing in the driving test, no deformation, confirmed with broken brick to improve the dirt road is a good experience. Crushed brick pavement construction process, is to determine the original subgrade standards, drawn from the road center line of 3.5 meters, and then dig the base groove (some are parallel training tank). Dig when digging accurate, and keep soil arches. After forming light steam grind (6 tons) compaction time. For new fill