COUNTERFORT RETAINING WALL PDF
Classification of. Retaining walls. • Gravity wall-Masonry or Plain concrete. • Cantilever retaining wall-RCC. (Inverted T and L). • Counterfort retaining wall- RCC. Types of reinforced concrete retaining walls are cantilever retaining walls and counterfort retaining walls. Functions and parts of these retaining walls. In this type of retaining wall, counterforts (cantilevers) are provided on the earth side between wall and footing to support the wall, which essentially spans as a.
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Reliability Analysis of Counterfort Retaining Walls
Waol the height of the retaining wall to be provided exceeds 6 to 7m, counterfort retaining wall prove to be economical. The wall is so proportioned that the dead weight of the wall provides required stability against the thrust exerted by the backfill including surcharge if any.
Wall retaining partly submerged backfill: Design of Isolated Column Footing. Prior to start of structural design of a retaining wall it is necessary to adopt some tentative dimensions for different components of the wall. Wall retaining partly submerged backfill.
Based on these dimensions the wall is checked for stability checked for overturning, sliding and maximum pressure at toe and in case the stability requirements are satisfied, structural design of different wall components is taken up. Besides loads due to retained material, the retaining wall may also be subjected to surcharged load due to automobile, rail road etc.
In case the water table does not rise up to full height of retaining wall, this will result in a situation where the soil is partially submerged and partly dry. Depending upon the height H of the wall the top width of stem can vary between mm to mm. Reliability—based design applied to retaining.
Design of Structures 3(2+1)
Walls of a building Simulation. To meet this requirement the resultant of the sum of all vertical forces and the horizontal active pressure should cut the base of the wall within the middle third. This type of wall with a key is shown in Fig. References Publications referenced by this paper. The sliding tendency is resisted by the frictional resistance between the base of the wall and the soil underneath.
The pressure mainly depends upon the type of backfill material and the height of wall. Topics Discussed in This Paper. If the retaining wall is allowed to move towards the back fill, it will compress the soil and the pressure thus exerted is known as passive pressure. The size of the wall is so kept that there is no tensile stress developed at any section of the wall under any condition of loading. Reliability analysis of cantilever retaining walls. From This Paper Figures, tables, and topics from this paper.
Risk assessment in geotechnical engineering. If the water table is such that the retained soil remain fully submerged, in such a case the saturated soil results in increasing the weight of the backfill, decreases the angle of repose of the soil which ultimately amounts to increase in pressure on the wall. The wall consists of three components, i the stem, ii the toe, and iii the heel.
COUNTERFORT RETAINING WALLS
Structural Reliability Analysis and Design. Wall retaining submerged backfill: Probability, reliability and statistical methods in engineering de-sign.
The more the height of the wall, the closer should be the spacing of counterforts. Let the backfill be moist or dry up to a depth h 1 below the top of wall and let the backfill below this depth i.
Wall retaining backfill in slope. This is shown in pressure diagram in Fig. Towards wapl design for geotechnical engineering Kok Kwang Phoon Wall retaining dry and levelled backfill. Monte Carlo method First-order reliability method.