The buttress dam would be less huge than the Gravity Dam. The buttress dam may well be built on even a comparatively thin basis over which the Gravity Dam could not be built.
A wide vertical water pressure feature, which adds to the improvement stabilization of the dam which preserves concrete, is built on the upstream face of the buttress dam.
The safety factor in the situation of the buttress dams is considerably greater than that of the gravity dams.
Because ice continues to slip across the inclined U/S surface, there is little importance to the ice strain.
The height of the buttress dams can be raised by stretching both the buttresses and the deck slab.
Powerhouses or even other plants may be situated in the open space in between buttresses.
The expense is not minimized by the very same ratios as the additional cost of formwork and strengthening is necessary.
According to the gap between the buttresses, the backspace of the deck slab can be reached.
Periodic examination of foundations, respectively. maybe taken out by approaching this stage.
Although the exposed surface of the concrete is more but the amount of concrete is less than the gravity dam, the excess heat throughout construction is best accomplished.
The speed of the building can also be improved as thinner parts do not pose any problems for cooling.
The dispersing of the buttresses might be changed in accordance with use zones of good foundations
Buttress dams can be intended to oblige moderate measures of establishment development without genuine harms, along these lines it tends to be underlying the dirt with differential settlements.
The measure of concrete needed for a buttress dam is around 1/3 to ½ of the concrete needed for a gravity dam of similar stature.
Access is conceivable to the rear of the upstream essence of the dam and to the establishment between buttresses for occasional investigation and for resulting grouting and boring pressing factor depended on openings, whenever required.
The uplifting strain at the buttress dam is significantly lower, which adds to the economy of the concrete and overall stabilization of the dam.
Powerhouse, switchyard, respectively, may be situated between the buttresses, reducing some building costs.
This is since the thickness of the slab is quite limited although there is access to the end of the slab via the gap between the buttresses.
Skilled labor standards and a shutter to concrete proportion are higher for the buttress dam than with the Gravity dam. This will contribute to a higher unit cost of concrete.
Decline of the upstream surface of the comparatively thin reinforced deck slab or arch of the buttress dam has much more drastic effects on the integrity of the dam;
The volume of water sealing to be established and preserved for the buttress dam is normally higher than for other dams.
The stress of the foundation is greater, indeed a sound rock foundation is appropriate or a spread base or a continuous mat might be needed, which would increase the cost of building.
The savings due to a decrease in the quantity of concrete would also, to some degree, be compensated by the need of strong reinforcing for comparatively thin members of the buttress dam.
The buttress dams are more vulnerable to intentional destruction than the strong gravity dams.
To have a 'enhanced dam structure using the buttress walls as well as the buttress heads in which the front face of the buttress head is covered by a waterproofing material.
Also provide enhanced dam of the buttress kind in which the buttress head is a longitudinal direction and separated by a joint allowing contraction across defined lines.
To have a river that's headed. Buttress walls in which the heads are separated by a bridging construction that bridges the gap between the heads and provides that very link between both the bridging construction as well as the buttress heads that perhaps the forces transmitted by the bridging constructions to the heads are distributed by direct compression so that at least, if any, bending moments in the heads are created.