石碴，即同一种材质的大小规格在规定范围之内的石料。多用于工程施工中回填物。碴， 指小碎块。
misc. ballast aggregate
砂岩、泥岩和灰岩石碴料是四川省分布广，使用最多的几种坝料。
Sandstone, mudstone and limestone rock-debris have a very wide distribution and are very frequently used as dam materials in Sichuan Provi- nce.
文章介绍了有关在广州-茂名铁路运用大型养路机械进行更换石碴施工的技术和经验。
The large track maintenance machines were used in the railway engineering construction of replacement for ballast on the Guangzhou-Maoming railway line.
石碴料作为堆石坝的主要筑坝材料，其工程性质对堆石坝的安全性有至关重要的影响。
As the main material in constructing compacted rockfill dam, the engineering properties of rockfill have a vital effect on DAMS security.
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