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RETAINING WALLS
AND SLOPE STABILISATION
ALEN JOSEPH JAMES
MASAP
BUILDING MATERIALS AND CONSTRUCTION,
S-3
Retaining walls are structures designed to
restrain soil to a slope that it would not
naturally keep to (typically a steep, near-
vertical or vertical slope).
Types of retaining wall
•Gravity.
•Cantilevered.
•Sheet piling.
•Bored pile.
•Anchored.
•Soil nailing.
•Soil-strengthened.
•Mechanical stabilization.
They are used to bound soils between two different elevations
often in areas of terrain possessing undesirable slopes or in
areas where the landscape needs to be shaped severely and
gravity retaining wall
A gravity retaining wall that relies
solely on it’s own weight to stand up is
called a gravity wall.
Cantilever retaining walls are
constructed of reinforced concrete.
They consist of a relatively thin stem
and a base slab.
Cantilever retaining walls
A counterfort retaining wall is a
cantilever wall with counterforts,
or buttresses, attached to the
inside face of the wall to further
resist lateral thrust.
counterfort retaining wall
Concrete crib walls are gravity
retaining walls, constructed from
interlocking, precast, concrete
components. They are filled with
free draining material and earth
backfill to eliminate the hazards of
hydrostatic pressure building up
behind the wall.
A gabion is a cage, cylinder,
or box filled with rocks,
concrete, or sometimes sand
and soil for use in civil
engineering, road building,
military applications
and landscaping.
Gabion wallcrib walls
Reinforced Earth wall consist
of alternating layers of granular
backfill, and linear metallic,
high-adherence soil reinforcing
strips or ladders to which a
modular precast concrete facing
is attached.
Its strength and stability are
derived from the frictional
interaction between the
granular backfill and the
reinforcements, resulting in a
permanent and predictable bond
that creates a unique composite
construction material.
Soil nailing Sheet piling

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Retaining walls and slope stabilisation methods

  • 1. RETAINING WALLS AND SLOPE STABILISATION ALEN JOSEPH JAMES MASAP BUILDING MATERIALS AND CONSTRUCTION, S-3
  • 2. Retaining walls are structures designed to restrain soil to a slope that it would not naturally keep to (typically a steep, near- vertical or vertical slope). Types of retaining wall •Gravity. •Cantilevered. •Sheet piling. •Bored pile. •Anchored. •Soil nailing. •Soil-strengthened. •Mechanical stabilization. They are used to bound soils between two different elevations often in areas of terrain possessing undesirable slopes or in areas where the landscape needs to be shaped severely and gravity retaining wall
  • 3. A gravity retaining wall that relies solely on it’s own weight to stand up is called a gravity wall. Cantilever retaining walls are constructed of reinforced concrete. They consist of a relatively thin stem and a base slab. Cantilever retaining walls A counterfort retaining wall is a cantilever wall with counterforts, or buttresses, attached to the inside face of the wall to further resist lateral thrust. counterfort retaining wall
  • 4. Concrete crib walls are gravity retaining walls, constructed from interlocking, precast, concrete components. They are filled with free draining material and earth backfill to eliminate the hazards of hydrostatic pressure building up behind the wall. A gabion is a cage, cylinder, or box filled with rocks, concrete, or sometimes sand and soil for use in civil engineering, road building, military applications and landscaping. Gabion wallcrib walls
  • 5. Reinforced Earth wall consist of alternating layers of granular backfill, and linear metallic, high-adherence soil reinforcing strips or ladders to which a modular precast concrete facing is attached. Its strength and stability are derived from the frictional interaction between the granular backfill and the reinforcements, resulting in a permanent and predictable bond that creates a unique composite construction material. Soil nailing Sheet piling