12. CPT logs Flashcards

1
Q

Hvad måler Cone penetration test?

A

(- pore tryk(pressure))
- tryk
- friktion

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2
Q

Hvad er nogle vigtige begreber for CPT logs?

A
  • Tip resistance (q_c) - corrected cone resistance (for str. af probe)
  • Friction ratio R_f (= f_c/q_c)
  • Pore pressure u_z -measured
  • Sleeve friction f_s - corrected for str. af probe
  • Corrected total cone resistance q_t
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3
Q

Hvad inddeler man sedimenterne ind efter?

A

Soil behavior types (SBT)
- der er 12 zoner

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4
Q

Hvad er soil behavior type index?

A

I_SBT
ny udgave ?

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5
Q

Hvad er cone penetration test?

A

Simpel metode hvor man kontrolleret presser en cone ned i jorden for at undersøge styrkeegenskaber, jordtype og lagdeling
-konstant hastigheds nedpresning

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6
Q

Hvad er tip resistance?

A

modstanden jorden yder mod spidsen

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7
Q

Hvad er sleeve friktion?

A

Friktionen mellem jorden overflade og stangen

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8
Q

Hvad er fordelen ved CPT logs?

A
  • hurtige
  • forstyrre jorden minimalt
  • kan vurdere bæreevne
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