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1. WO1979001099 - DEVICE FOR DETERMINING THE PORE WATER PRESSURE IN A SOIL

Publication Number WO/1979/001099
Publication Date 13.12.1979
International Application No. PCT/SE1979/000117
International Filing Date 22.05.1979
IPC
E02D 1/00 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
1Investigation of foundation soil in situ
E02D 1/02 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
1Investigation of foundation soil in situ
02before construction work
E21B 47/06 2012.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
06Measuring temperature or pressure
G01L 7/00 2006.01
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
7Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
G01V 9/00 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
9Prospecting or detecting by methods not provided for in groups G01V1/-G01V8/115
G01V 9/02 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
9Prospecting or detecting by methods not provided for in groups G01V1/-G01V8/115
02Determining existence or flow of underground water
CPC
E02D 1/027
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS
1Investigation of foundation soil in situ
02before construction work
027by investigating properties relating to fluids in the soil, e.g. pore-water pressure, permeability
E21B 47/06
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
06Measuring temperature or pressure
Applicants
Inventors
Priority Data
780581522.05.1978SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEVICE FOR DETERMINING THE PORE WATER PRESSURE IN A SOIL
(FR) DISPOSITIF DE DETERMINATION DE LA PRESSION D"EAU DANS LES PORES D"UN SOL
Abstract
(EN)
A device for measuring pore water pressure in soils employs a pore pressure sound (2) as a sensing member and a closed measuring system (5, 6) for creating the least possible disturbance in soils having a low degree of permeability, such as clay. The closed liquid-filled measuring system comprises a hypodermic needle type (20) of connection between the pore pressure sound and a measuring device (3), said needle being operative to penetrate a member of resilient material to extend into a liquid-filled chamber in said pore pressure sound and transfer a reading of the pore water pressure to said measuring device.
(FR)
Un dispositif de mesure de la pression d"eau de sols dans les terres comprend une sonde de pression des pores (2) fonctionnant comme un element capteur, et un systeme de mesure ferme (5, 6) pour perturber le moins possible des sols ayant un faible degre de permeabilite tel que l"argile. Le systeme de mesure ferme plein de liquide comprend une aiguille hypodermique (20) de connexion entre la sonde de pression des pores et un dispositif de mesure (3), ladite aiguille etant concue pour penetrer dans un element en materiau elastique et s"etendre dans une chambre pleine de liquide de la sonde de pression et transmettre une lecture de la pression d"eau dans les pores audit dispositif de mesure.
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