ABSTRACT
ABSTRACT: According to the characteristics of coal gangue itself, in accordance with the case study of Yiqi Highway subgrade coal gangue construction, various performance indicators in highway construction of coal gangue were explored. Combined with test road paving, coal gangue subgrade construction technology and quality control method were confirmed. The results show that: Coal gangue as subgrade filling material is characteristic of small compressibility and good stability. It can be popularized and applied in mining cities as a highway subgrade filling material.
