Caisson01

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Full list of words from this list:

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  1. caisson
    a chest to hold ammunition
    Open caissons are similar to box caissons except that they do not have a bottom face.
  2. water table
    underground surface below which the ground is fully saturated with moisture
    Open caissons used in soft grounds or high water tables, where open trench excavations are impractical, can also be used to install deep manholes, pump stations and reception/launch pits for micro tunnelling, pipe jacking and other operations.
  3. leading edge
    forward edge of an airfoil
    The leading edge of the caisson or "cutting shoe" is sloped out at a sharp angle (usually made of steel) to aid sinking in a vertical manner.
  4. clamshell
    the shell of a clam
    The material is excavated by clamshell excavator bucket on crane.
  5. upthrust
    a rise of land to a higher elevation
    The water in the caisson (due to high water table) balances the upthrust forces of the soft soils underneath.
  6. slurry
    a suspension of insoluble particles usually in water
    The shoe is generally wider than the caisson to reduce friction and the leading edge may be supplied with pressurised bentonite slurry (it swells in water to stabilise settlement or fill depressions/voids).
  7. stabilise
    support or hold steady and make steadfast, with or as if with a brace
    The shoe is generally wider than the caisson to reduce friction and the leading edge may be supplied with pressurised bentonite slurry (it swells in water to stabilise settlement or fill depressions/voids).
  8. excavator
    a workman who excavates for foundations of buildings or for quarrying
    The material is excavated by clamshell excavator bucket on crane.
  9. reinforced concrete
    concrete with metal and/or mesh added to provide extra support against stresses
    A reinforced concrete plug is poured under the water known as a "tremie pour".
  10. subsoil
    the layer of soil between the topsoil and bedrock
    The formation level subsoil may still not be suitable for excavation or bearing capacity.
  11. manhole
    a hole (usually with a flush cover) through which a person can gain access to an underground structure
    Open caissons used in soft grounds or high water tables, where open trench excavations are impractical, can also be used to install deep manholes, pump stations and reception/launch pits for micro tunnelling, pipe jacking and other operations.
  12. jack
    tool for exerting pressure or lifting
    Open caissons used in soft grounds or high water tables, where open trench excavations are impractical, can also be used to install deep manholes, pump stations and reception/launch pits for micro tunnelling, pipe jacking and other operations.
  13. impractical
    not workable
    Open caissons used in soft grounds or high water tables, where open trench excavations are impractical, can also be used to install deep manholes, pump stations and reception/launch pits for micro tunnelling, pipe jacking and other operations.
  14. anchorage
    a place for ships or boats to be secured
    The piles will act as bearing (transmitting load to deeper soils or friction along their surface length) and anchorage (resist floatation in the same manner).
  15. ballast
    any heavy material used to stabilize a ship or airship
    The caissons are sunk by self-weight, concrete or water ballast placed on top, or by hydraulic jacks.
  16. obstruction
    any structure that makes progress difficult
    They are suitable for use in soft clays (e.g. in some river-beds) but not for where there may be large obstructions in the ground.
  17. rake
    a long-handled tool with a row of teeth at its head
    H-beam sections (typical column sections, due to resistance to bending in all axes) may be driven at angles "raked" to rock or other firmer soils.
  18. plug
    blockage consisting of an object designed to fill a hole tightly
    A reinforced concrete plug is poured under the water known as a "tremie pour".
  19. depression
    a sunken or lowered geological formation
    The shoe is generally wider than the caisson to reduce friction and the leading edge may be supplied with pressurised bentonite slurry (it swells in water to stabilise settlement or fill depressions/voids).
  20. pour
    cause to run
    A reinforced concrete plug is poured under the water known as a "tremie pour".
  21. trench
    any long ditch cut in the ground
    Open caissons used in soft grounds or high water tables, where open trench excavations are impractical, can also be used to install deep manholes, pump stations and reception/launch pits for micro tunnelling, pipe jacking and other operations.
  22. swell
    increase in size, magnitude, number, or intensity
    The shoe is generally wider than the caisson to reduce friction and the leading edge may be supplied with pressurised bentonite slurry (it swells in water to stabilise settlement or fill depressions/voids).
  23. pit
    a sizeable hole, usually in the ground
    Open caissons used in soft grounds or high water tables, where open trench excavations are impractical, can also be used to install deep manholes, pump stations and reception/launch pits for micro tunnelling, pipe jacking and other operations.
Created on 九月 11, 2011

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