rough arch

Same as discharging arch; built with rectangular bricks and wedge-shaped mortar joints.

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Corbeling

References in classic literature ?

Upward and outward the stone walls swept, and they saw dimly before them, in the light of their torches, a vast cavern, seemingly formed by the falling in of mountains, which, in toppling over, had met overhead in a sort of rough arch, thus protecting, in a great measure, that which lay beneath them.

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These get butted together to form the rough arch shape (Fig.

Garden arbor

Travelling south from the Garamantes' ancient capital one reaches the Akakus, a Saharan land of soaring dunes and colossal rock formations: rough arches, steep gorges and buttressed mountains, This remote terrain, inhospitable but ineffably beautiful, seems to confirm that Libya is a land beyond mythologization.

Libya, land of myths & demons: David Winter visits a land beset for millennia by the fantasies of outsiders

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