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一、概述我国既有线上很多地段,由于路堤填土压实质量差,在运营期间发生较大的下沉,特别是高路堤,如陇海铁路OK808+850～OK817+400,仅8公里多长,下沉1米以上的就有十多处,不但给养护带来了困难,而且经常影响运输。我国铁路路基施工规范中规定,“路堤高度小于20米时,可按平均堤高的0～2.5％预留沉落加高量;路堤高度大于20米时,除按设计加宽外,可按平均堤高的0～1.5％预留沉落加高量”。但怎样取高低值不够具体,因而
First, an overview of China’s many existing online lots, due to embankment compaction poor quality, during the operation of a larger sink, especially high embankments, such as Longhai Railway OK808 +850 ~ OK817 +400, only 8 km Long, sinking more than a meter in more than a dozen, not only to the maintenance of the difficulties, and often affect the transport. China’s railway embankment construction code stipulates that “embankment height of less than 20 meters, the average embankment height may be set aside to raise the amount of 0-2.5%; embankment height of more than 20 meters, in addition to the design widened, you can press 0-1.5% of the average embankment set aside to increase the amount of sediment. ” However, how to take high and low values is not specific enough