广东省云浮支线在路基施工和病害处理中,对台后填土和坡脚排水层作了几处新做法的试验。据观测,经过三个雨季的考验和1987年初的交验和运营,证明在路基质量和安全效果上还是比较满意的。但这种办法的经济效益,以及在长时间内能否保持稳定性能,尚须做进一步的探讨和试验。 In the process of subgrade construction and disease treatment, the Yunfu Branch of Guangdong Province conducted tests on several new practices on the filling of backstays and the draining of the slope foot. According to the observation, after three rainy seasons and the inspection and operation in early 1987, it is proved that the subgrade quality and safety effect are still satisfactory. However, the economic benefits of such an approach and its ability to maintain its stability over a long period of time require further discussion and experimentation.