The sloping face of the abutment on which an extremity of an arch rests.
（斜块）拱座，拱脚斜块
Example sentencesExamples
It was 525 metres long and was supported by 32 pontoons including stone skewbacks on both banks.
The job required excavation into steep slopes for the pier and skewbacks.
This was easier than cutting the bricks to make wedges, skewbacks and the arch key.
Without hinges, arch ribs extend continuously from skewback to skewback and are fixed at skewbacks so no rotation can occur and thus the bridge is called a fixed arch.
The massive steel bases were positioned just above the skewbacks, using six hydraulic jacks to make delicate adjustments to their position and angle.
Additional issues include arch size and arch depths, keystones, soffits, skewbacks and the configuration of abutments.
Definition of skewback in US English:
skewback
nounˈskyo͞oˌbakˈskjuˌbæk
The sloping face of the abutment on which an extremity of an arch rests.
（斜块）拱座，拱脚斜块
Example sentencesExamples
The massive steel bases were positioned just above the skewbacks, using six hydraulic jacks to make delicate adjustments to their position and angle.
It was 525 metres long and was supported by 32 pontoons including stone skewbacks on both banks.
This was easier than cutting the bricks to make wedges, skewbacks and the arch key.
The job required excavation into steep slopes for the pier and skewbacks.
Additional issues include arch size and arch depths, keystones, soffits, skewbacks and the configuration of abutments.
Without hinges, arch ribs extend continuously from skewback to skewback and are fixed at skewbacks so no rotation can occur and thus the bridge is called a fixed arch.