How to replace brake pads. Experts say itâs hard to determine how often brake pads should be replaced, because they can wear out faster or slower based on how you drive the car, the weight of the vehicle, road conditions and driving frequency, Gregory says. He recommends having them checked at every oil change.
buttress (plural buttresses) ( 1 architecture) A brick or stone structure built against another structure to support it. 2  Anything that serves to support something; a prop. ( 3 botany) A buttress-root. ( 4 climbing) A feature jutting prominently out from a mountain or rock; a crag, a bluff.
With a buttress dam, the face of the dam is held by a series of supports or buttresses that are placed at intervals on the downstream side. The buttresses work to combat the force of reservoir water from trying to push the dam over.Sugar Hollow Reservoir Dam-White Hall, VA.s a result, this type of dam is also referred to as an Ambursen dam. Ambursenâs flat slab buttress dam design took advantage of the stabilizing effect of the vertical water load on the strongly inclined upstream face that required a minimal buttress thickness per unit of dam length.