NL7902503A - Ground permeability determination probe - has four filters in end of pointed tube where pressure difference is measured - Google Patents

Ground permeability determination probe - has four filters in end of pointed tube where pressure difference is measured

Info

Publication number
NL7902503A
NL7902503A NL7902503A NL7902503A NL7902503A NL 7902503 A NL7902503 A NL 7902503A NL 7902503 A NL7902503 A NL 7902503A NL 7902503 A NL7902503 A NL 7902503A NL 7902503 A NL7902503 A NL 7902503A
Authority
NL
Netherlands
Prior art keywords
filters
measured
pressure difference
ground
tube
Prior art date
Application number
NL7902503A
Other languages
Dutch (nl)
Original Assignee
Stichting Speurwerk Baggertech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stichting Speurwerk Baggertech filed Critical Stichting Speurwerk Baggertech
Priority to NL7902503A priority Critical patent/NL7902503A/en
Publication of NL7902503A publication Critical patent/NL7902503A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/027—Investigation of foundation soil in situ before construction work by investigating properties relating to fluids in the soil, e.g. pore-water pressure, permeability

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Soil Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The probe determines the permeability coefficient of the ground and comprises a tube with a pointed end thrust into the ground. Four filters (1 - 4) are situated at the end of the tube, extending from its point. Through the first and fourth ones a quantity (Q) is forced out or drawn in, while the pressure difference thus arising (u) between the second and third filters is measured. The permeability coefficient (k) of the ground is determined by the equation:- k = Q/Cuwhere C is a constant for this probe, and is determined by the tube geometry and the position and size of the filters.
NL7902503A 1979-03-30 1979-03-30 Ground permeability determination probe - has four filters in end of pointed tube where pressure difference is measured NL7902503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7902503A NL7902503A (en) 1979-03-30 1979-03-30 Ground permeability determination probe - has four filters in end of pointed tube where pressure difference is measured

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7902503A NL7902503A (en) 1979-03-30 1979-03-30 Ground permeability determination probe - has four filters in end of pointed tube where pressure difference is measured

Publications (1)

Publication Number Publication Date
NL7902503A true NL7902503A (en) 1979-07-31

Family

ID=19832893

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7902503A NL7902503A (en) 1979-03-30 1979-03-30 Ground permeability determination probe - has four filters in end of pointed tube where pressure difference is measured

Country Status (1)

Country Link
NL (1) NL7902503A (en)

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Legal Events

Date Code Title Description
BV The patent application has lapsed