Manual pressuremeters
Since 1984, proud heir of Louis Ménard Techniques, Apageo designs, develops and manufactures Ménard manual pressuremeters (Control Unit) for standard pressuremeter tests according to the former NF P 94-110-1 and the current NF EN ISO 22476-4.
The Menard manual pressuremeters (Control Unit) with their accessories and in particular tubings and 3-cells probe to perform in situ Pressuremeter test in soil (static loading test of the soil in place). From the test reading (volume variation based on controlled pressure), a stress-strain curve can be obtained, in the case of plane deformation, which yields :
- the Ménard Pressuremeter modulus, Em
- the creep pressure Pf
- the Ménard limit pressure Pl.
We offer three models of manual pressure gauges:
- Ménard Compact Pressure Gauge - 100-bar capacity
The Compact Pressure Gauge offers the same features as the standard Ménard CPV; it is the latest version of the manual Apageo CPVs, combining cutting-edge technology and reliability.
- Ménard Standard Pressure Gauge – 100-bar capacity
The device consists of a pressure-volume controller that precisely regulates the pressure in the probe to perform static loading of the in-situ soil and monitor changes in the loading stages; the entire system is connected by high-strength tubing.
- Ménard THP (Very High Pressure) Pressure Gauge - 150 bar capacity
In addition to the standard unit, it consists of a special high-pressure main pressure regulator and internal copper tubing rated for an operating pressure exceeding 200 bars. Its gauge can be removed as a precaution; the test is monitored solely using the data logger.
THE BENEFITS
Conception following the original Ménard procedures
Clear and easy to use control panel principles
Easy to read measurements
Quality tripod: robust, stable and easy to install
Simply general maintenance with special package
APPLICATIONS
In situ stress controlled loading test performed on the wall of a borehole using a cylindrical probe which can expand radially.
DATA ACQUISITION SYSTEM
The GeoSPAD®2 system, consisting of sensors and a GeoBOX® data logging and communication unit, is integrated with the Ménard pressuremeter to acquire data from pressuremeter tests via the GeoBOX® universal central processing unit. This equipment automatically records the conditions and data from these tests, whether they are conventional or optional cyclic (loading/unloading) tests. This system, in conjunction with GeoBOX®, allows the operator to focus on conducting the test without having to record all the data, by monitoring the progress of the pressuremeter tests on the GeoBOX® screen, and enables the engineer to save considerable time by directly uploading all the data rather than entering it manually. The GeoSPAD®2 thus helps prevent errors, whether during manual note-taking on-site or later when re-entering data into the computer.
This recorded data is transferred via the optional 4G modem or USB key to the GeoVISION®-P data processing software.