墓坑夯土层

layer filled with rammed earth in a tomb pit (archeology)

grave / tomb / mausoleum

tomb pit

hole / pit / tunnel / to defraud

variant of 坑[keng1] / pit / hole

variant of 笨[ben4]

to tamp / (slang) popular / hot

rammed earth

Tu (ethnic group) / surname Tu

earth / dust / clay / local / indigenous / crude opium / unsophisticated / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

layer of soil / ground level

to pile on top of one another / layer; stratum / floor (of a building); story / (math.) sheaf / classifier for layers