EP 0126010 B1 19861210 - DEVICES FOR DETERMINING THE VARIATIONS OF THE SIZE OF A DEFORMABLE AND INFLATABLE CELL THRUSTED INTO THE GROUND AND SUBJECTED TO GRADIENTS OF INTERNAL PRESSURE
Title (en)
DEVICES FOR DETERMINING THE VARIATIONS OF THE SIZE OF A DEFORMABLE AND INFLATABLE CELL THRUSTED INTO THE GROUND AND SUBJECTED TO GRADIENTS OF INTERNAL PRESSURE
Publication
Application
Priority
FR 8308181 A 19830517
Abstract (en)
[origin: US4598591A] The invention relates to pressuremetric apparatus used to determine the mechanical properties of soil. The apparatus comprises means which include solenoid valves (10, 14, 19), pressure sensors (11, 16, 20), and an electronic unit (21) which controls the solenoid valves on the basis of information from the sensors and of preselected information, so as to automatically provide a pressure rise, in accordance with the desired program, in the dilatable cell of the pressuremeter. The invention is useful in controlling the pressure rise in probes of pressuremetric apparatus.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
E02D 1/022 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI SE
DOCDB simple family (publication)
EP 0126010 A1 19841121; EP 0126010 B1 19861210; DE 3461662 D1 19870122; FR 2546299 A1 19841123; FR 2546299 B1 19850830; JP S59221632 A 19841213; US 4598591 A 19860708
DOCDB simple family (application)
EP 84401000 A 19840516; DE 3461662 T 19840516; FR 8308181 A 19830517; JP 9762184 A 19840517; US 61086984 A 19840516