路基工程
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Distinction and division between subgrade and pavement in highway works: term definitions, the dividing plane (bottom of pavement structure = top of subgrade = top of roadbed) and the roadbed/embankment depth numbers, plus classification, pricing, and acceptance split calibers
Subgrade and pavement are divided at "bottom of pavement structure = top…
GB/T 50083-2014《工程结构设计基本术语标准》第5.1.1、5.2.2、5.2.3、5.2.4条GB/T 50841-2013《建设工程分类标准》第4.2.2条CJJ 194-2013《城市道路路基设计规范》第2.1.2条2026-09-12 - 02
TB/T 10822-2024 subgrade soil excavation-haul application: excavator self-dig-self-dump vs excavator loading + dump-truck haul, and the haul-distance boundaries (20 m / 1 km / 10 km x 0.85)
One criterion: does the excavated soil enter truck haulage? Soil cast in…
TB/T 10822-2024《铁路工程预算定额 第一册 路基工程》第一章 路基土石方（分章说明第（一）～（三）条；第一节 土方挖运 LY-1~3、LY-4~15、LY-20~25）2026-08-30