BORFORMAT SPEC

BORFORMAT SPEC | Format de fichier .BOR

The Bor Format consists of two parts:

the specification of the storage format
the specification of the field type

Introduction

First, it is assumed that a file matches a recording as an independant logical unit. The file is named with a .bor extension.

File name example

50000240705140601D.bor

Table 1. File name structure
5	0001	240705140601	D	.bor
Generation	Serial	Date	Domain	Format

Table 2. Domain ID
ID	Domain
`D`	Drilling parameters
`G`	Grouting parameters
`J`	JetGrouting parameters
`P`	Ménard Pressuremeter Test
`A`	Continuous Flight Auger Pile (CFA)
`L`	Lugeon Test
`V`	Vibroflotation
`Y`	Dynamic probing

Abilities

The file has the following abilities:

recording description
data logs
non-modification source-file guarantee

Format specification

The bor file is a zip format archive containing the files below:

A file description that contains technical informations non-specific to the recording type and field properties, references to data file: description.xml
Data file, example: data.nc

Data file

Data file use the netCDF (3.6+) format. It contain data logs and each variable.

Description file

The description file contains 2 different types of information:

non-specific technical information
field-specific properties

Example of Description file

Example of description.xml file (drilling parameters)

<?xml version="1.0" encoding="UTF-8"?>
<description xmlns="http://www.lim.eu/description" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.lim.eu/description description.xsd">
  <filename>50000240705140601D</filename>
  <creation>2024-07-05T14:06:01+02:00</creation>
  <modification>2024-07-05T14:08:02+02:00</modification>
  <project_ref>Bor-Format</project_ref>
  <borehole_ref>BH1</borehole_ref>
  <operator>GASTON</operator>
  <device>
    <serial>50000</serial>
    <version>1.0</version>
    <build>20190104</build>
  </device>
  <position>
    <longitude unit="degree">4.9187880</longitude>
    <latitude unit="degree">45.7597504</latitude>
    <altitude unit="m">192.000000</altitude>
    <epv unit="m">655.35</epv>
    <eph unit="m">655.35</eph>
  </position>
  <cell>
    <mcc>208</mcc>
    <mnc>01</mnc>
    <cellid>00B2350F</cellid>
    <lac>00000884</lac>
  </cell>
  <borehole>
    <borehole_diameter unit="mm">160</borehole_diameter>
    <borehole_inclination unit="degree">0</borehole_inclination>
    <water_depth unit="m">0.1</water_depth>
  </borehole>
  <drilling>
    <machine_ref>DCH 218</machine_ref>
    <method>DRLMTD_RTR</method>
    <tool>DRLBIT_CNTCI</tool>
    <tool_diameter unit="mm">150</tool_diameter>
    <fluid>DRLFLD_WTR</fluid>
    <rod_length unit="m">4.5</rod_length>
  </drilling>
  <convention version="1.1">
    <parameters phase="DRILL">
      <inclination>
        <X unit="degree">171.9</X>
        <Y unit="degree">86.3</Y>
      </inclination>
      <effective_duration unit="s">59.40</effective_duration>
      <logfile>data.nc</logfile>
    </parameters>
  </convention>
</description>

Non-specific technical information

Table 3. Non-specific technical information
Property	Description	Type	Required	Example
`borehole_ref`	Borehole reference	text	required ^[1]	BH1
`borehole`	Borehole information	structure (see below)	optional
`cell`	Cell position	structure (see below)	optional
`creation`	Creation date	iso8601	required	2024-07-05T14:06:01+02:00
`device`	Device information	structure (see below)	required
`drilling`	Drilling information	structure (see below)	required
`filename`	File name	text	required	50000240705140601D
`modification`	Modification date	iso8601	required	2024-07-05T14:08:02+02:00
`operator`	Operator name	text	optional	ROBERT
`position`	GPS measurement	structure (see below)	optional
`project_ref`	File reference	text	required	Bor-Format

Borehole information (optional)

Table 4. Borehole information
Property	Description	Type	Required	Example
`borehole_diameter`	Borehole diameter	length	optional	66 (mm)
`borehole_inclination`	Borehole inclinaison	angle	optional	0 (degree)
`water_depth`	Depth of water level ^[2]	level	optional	0.1 (m)

Cell position (optional)

See http://www.opencellid.org

Table 5. Cell position
Property	Description	Type	Required	Example
`cellid`	Cell ID	integer	required	00B2350F
`lac`	Local area code	integer	required	00000884
`mcc`	Mobile country code	integer	required	208
`mnc`	Mobile network code	integer	required	01

GPS position (optional)

Table 6. GPS position (WGS84)
Property	Description	Type	Required	Example
`altitude`	Altitude	length	required	192.000000 (m)
`eph`	Standard deviation of horizontal position error	length	required	655.35 (m)
`epv`	Standard deviation of vertical position error	length	required	655.35 (m)
`latitude`	Latitude	angle	required	45.7597504 (degree)
`longitude`	Longitude	angle	required	4.9187880 (degree)

Device information

Table 7. Device information
Property	Description	Type	Required	Example
`build`	Build version	text	optional	20190104
`serial`	Serial number	integer	required	50000
`version`	Hardware version	text	optional	1.0

Drilling information

Table 8. Drilling information
Property	Description	Type	Required	Example
`bit_mass`	Drilling tool mass	mass	optional	10 (kg)
`fluid`	Drilling fluid	code (see below)	optional	DRLFLD_WTR
`holdback_area`	Surface of holdback pressure	area	optional	301 (cm2)
`machine_ref`	Drilling machine	text	optional	DCH 218
`method`	Drilling method	code (see below)	optional	DRLMTD_RTR
`rod_mass`	Drilling rod mass	mass	optional	20 (kg)
`rod_length`	Drilling rod length	length	optional	4.5 (m)
`thrust_area`	Surface of thrust pressure	area	optional	401 (cm2)
`tool`	Drilling tool	code (see below)	optional	DRLBIT_CNTCI
`tool_diameter`	Drilling tool diameter	length	optional	150 (mm)
`torque_factor`	Torque factor	decimal	optional	112

Table 9. Drilling method codes
Drilling method	Description
`DRLMTD_HA`	Auger
`DRLMTD_CFA`	Continuous flight auger
`DRLMTD_ADM`	Auger with drilling mud
`DRLMTD_AUG`	Auger
`DRLMTD_HSA`	Hollow Stem Auger
`DRLMTD_OHD`	Open hole drilling
`DRLMTD_DTM`	Disintegrating tool with mud circulation
`DRLMTD_COR`	Core drilling
`DRLMTD_RTR`	Rotary drilling
`DRLMTD_RRFFM`	Rotary reverse flow of flushing medium
`DRLMTD_RTRPRC`	Rotary percussion
`DRLMTD_RPM`	Rotary percussion with mud
`DRLMTD_DTH`	Downhole hammer
`DRLMTD_DRI`	Driving
`DRLMTD_DS`	Driven sampler
`DRLMTD_PT`	Pushed tube
`DRLMTD_TWT`	Thin wall tube, pushed
`DRLMTD_DST`	Driven slotted tube
`DRLMTD_STDTM`	Slotted tube with inside disintegrating tool and mud circulation
`DRLMTD_CPD`	Cable percussion drilling
`DRLMTD_VDS`	Vibro driven sampler
`DRLMTD_VDT`	Vibro driven tube
`DRLMTD_VD`	Vibration drilling
`DRLMTD_VS`	Vibro-sinking
`DRLMTD_PS`	Push sampler
`DRLMTD_DT`	Driven tube
`DRLMTD_GRAB`	Grabbing Cable with grab
`DRLMTD_TP`	Trial-pit
`DRLMTD_SHFT`	Shaft

Table 10. Drilling tool (bit) codes
Drilling tool	Description
`DRLBIT_BLD`	Blade bit
`DRLBIT_BLD2`	2 Blades bit
`DRLBIT_BLD3`	3 Blades bit
`DRLBIT_BLD4`	4 Blades bit
`DRLBIT_BLDTIP`	Bladed tool tip
`DRLBIT_BLDTUB`	Bladed tool with tube topped
`DRLBIT_JET`	Jet bit
`DRLBIT_RTDK`	Rotary disk bit
`DRLBIT_FLTCHS`	Flat chisel
`DRLBIT_CRSCHS`	Cross chisel
`DRLBIT_STPCHS`	Cross Cut Step bit with TCI
`DRLBIT_BTT`	Buttons bit (Rotary percussion)
`DRLBIT_BTTDTH`	Buttons bit DTH
`DRLBIT_BTTODX`	Button bit ODEX
`DRLBIT_CTTPDC`	Cutter bit PDC (polycrystalline diamond compact)
`DRLBIT_CTTGHI`	Cutter bit GHI (grit hotpressed inserts)
`DRLBIT_STBB`	Stubber (heavy tool)
`DRLBIT_CACH`	California chisel bit
`DRLBIT_BICN`	Bicone bit
`DRLBIT_TRCN`	Tricone bit
`DRLBIT_CNST`	Tricone Steeltooth bit
`DRLBIT_CNTCI`	Tricone TCI (Tungsten Carbide Insert)
`DRLBIT_SPRL`	Spiral bit
`DRLBIT_AUG`	Auger
`DRLBIT_ABCK`	Auger with bucket
`DRLBIT_HA`	Hand Auger
`DRLBIT_HSA`	Hollow Stem Auger
`DRLBIT_CFA`	Continuous Flight Auger
`DRLBIT_COR`	Core bit
`DRLBIT_TC`	Tungsten carbide set
`DRLBIT_GTS`	Geotechnical saw-tooth carbide set
`DRLBIT_PCD`	Polycrystalline diamond core bit
`DRLBIT_TSP`	Thermally stable polycrystalline set
`DRLBIT_STCB`	Single-tube corebarrel
`DRLBIT_DTCB`	Double-tube corebarrel
`DRLBIT_TTCB`	Triple-tube corebarrel
`DRLBIT_DTCBXT`	DD/TT corebarrel with extended inner tube
`DRLBIT_OSTW`	Open-sampler thin-walled (Shelby)
`DRLBIT_OSTKW`	Open-sampler thick-walled
`DRLBIT_HPS`	Hydraulic Piston samplers
`DRLBIT_PSTKW`	Piston samplers, thick-walled
`DRLBIT_PSTW`	Piston samplers, thin-walled
`DRLBIT_CPDS`	Bit with shell (or bailer)
`DRLBIT_CPDC`	Bit with clay cutter
`DRLBIT_CPSS`	Sectional shell

Table 11. Drilling fluid codes
Drilling fluid	Description
`DRLFLD_AIR`	Air
`DRLFLD_WTR`	Water
`DRLFLD_AIRWTR`	Air-Water
`DRLFLD_AIRPLM`	Air-Polymer
`DRLFLD_WBM`	Water-based mud
`DRLFLD_WBMSHL`	Water-Shale-based mud
`DRLFLD_WBMPLM`	Dry-polymer-based mud
`DRLFLD_WBMLSF`	Lignosulfonate-based mud
`DRLFLD_WBMSEA`	Sea-Water-based mud
`DRLFLD_WBMNACL`	Saturated-Salt-based mud
`DRLFLD_WBMLIM`	Lime-based mud
`DRLFLD_WBMCLC`	Calcium-based mud
`DRLFLD_OBM`	Oil-based mud
`DRLFLD_SBM`	Synthetic-based mud

Drilling Parameters convention

Definition

Drilling Parameters convention combine drilling parameters recorded during drilling tool movement according to time or depth.

The convention is simply named parameters.

Three different field types are actually supported by this format. Each field type can have different phases.

Table 12. Parameters phases
Field type	Phase
Parameters recorded during drilling	`DRILL`
Jet grouting parameters recorded during drilling and injection	`JETDOWN, JETUP, PREJETDOWN, PREJETUP`
CFA Pile parameters recorded during drilling and concreting	`PILEDOWN, PILEUP`

Example of parameters convention

  <convention version="1.1">
    <parameters phase="DRILL">
      <inclination>
        <X unit="degree">171.9</X>
        <Y unit="degree">86.3</Y>
      </inclination>
      <effective_duration unit="s">59.40</effective_duration>
      <logfile>data.nc</logfile>
    </parameters>
  </convention>

Properties

Table 13. Parameters information
Property	Description	Type	Required	Example
`effective_duration`	Drilling effective duration (out of break)	duration	required	59.40 (s)
`inclination`	Tilt of the drill mast	structure (see below)	optional
`initial_volume`	Volume taken into account before starting the pile.	volume	optional	12 (l)
`logfile`	Name of data file	text	required	data.nc

Table 14. (Inclination) Tilt X encoder / Y encoder of the drilling machine mast (optional)
Property	Description	Type	Required	Example
`X`	inclination according to the X plane of the encoder	angle	required	171.9 (degree)
`Y`	inclination according to the Y plane of the encoder	angle	required	86.3 (degree)

Data file (logfile)

Data file is made with the netCDF (3.6+) format. They contain data logs and log names declarations (variables).

Example of data.nc dump

Example of data file from 50000240705140601D.bor (data.nc dump to data.cdl format)

Data.cdl example

netcdf data {
dimensions:
	time = UNLIMITED ; // (42 currently)
variables:
	float time(time) ;
		time:unit = "s" ;
		time:label = "Temps" ;
	float DEPTH(time) ;
		DEPTH:unit = "m" ;
		DEPTH:label = "Prof." ;
	float AS(time) ;
		AS:unit = "m/h" ;
		AS:label = "VA" ;
		AS:scale_max = 800.f ;
	int EVP(time) ;
		EVP:label = "evt-part" ;
	int EVR(time) ;
		EVR:label = "evt-new-rod" ;
	float TP(time) ;
		TP:unit = "bar" ;
		TP:label = "PO" ;
		TP:scale_max = 200.f ;
	float IP(time) ;
		IP:unit = "bar" ;
		IP:label = "PI" ;
		IP:scale_max = 20.f ;
	float TQ(time) ;
		TQ:unit = "bar" ;
		TQ:label = "CR" ;
		TQ:scale_max = 200.f ;
	float SP(time) ;
		SP:unit = "bar" ;
		SP:label = "PF" ;
		SP:scale_max = 0.f ;
data:

 time = 0, 11.8, 12.6, 12.8, 13.8, 14, 14.2, 15.2, 15.4, 16, 16.2, 16.4,
    16.8, 17.2, 17.4, 17.6, 17.8, 18.6, 19, 19.6, 20.2, 20.6, 21, 21.6, 22.2,
    22.6, 23.2, 23.6, 24.2, 24.6, 25.2, 25.6, 26, 26.2, 26.4, 26.8, 27, 27.2,
    27.4, 27.8, 48, 330.4 ;

 DEPTH = 0, 0.03, 0.04, 0.08, 0.09, 0.11, 0.12, 0.14, 0.16, 0.18, 0.2, 0.22,
    0.23, 0.24, 0.27, 0.3, 0.32, 0.34, 0.36, 0.37, 0.38, 0.39, 0.4, 0.41,
    0.42, 0.44, 0.45, 0.46, 0.47, 0.48, 0.5, 0.52, 0.53, 0.54, 0.55, 0.59,
    0.6, 0.63, 0.65, 0.66, 0.68, 0.7 ;

 AS = 0.6613566, 8.576679, 45.18072, 686.747, 39.75904, 445.7831, 192.7711,
    65.06024, 343.3735, 90.36144, 439.759, 391.5663, 93.3735, 99.39759,
    463.8554, 524.0964, 421.6867, 91.86747, 147.5904, 60.24096, 60.24096,
    93.3735, 93.3735, 68.27309, 80.32128, 117.4699, 76.30522, 90.36144,
    60.24096, 111.4458, 86.34538, 180.7229, 99.39759, 216.8675, 277.1084,
    280.1205, 331.3253, 457.8313, 409.6385, 105.4217, 3.459382, 6.024096 ;

 EVP = 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ;

 EVR = 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ;

 TP = 0, 62.35, 36.71, 73.34, 19.62, 66.01, 23.29, 70.89, 35.49, 9.86, 55.03,
    79.44, 4.98, 14.74, 62.35, 78.22, 80.66, 46.48, 79.44, 79.44, 81.88,
    81.88, 81.88, 81.88, 81.88, 79.44, 81.88, 81.88, 81.88, 81.88, 79.44,
    81.88, 78.22, 78.22, 80.66, 80.66, 80.66, 80.66, 80.66, 70.89, 61.13, 0 ;

 IP = 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ;

 TQ = 0, 78.22, 81.88, 81.88, 80.66, 80.66, 85.54, 80.66, 90.43, 90.43,
    85.54, 89.21, 103.85, 95.31, 90.43, 97.75, 109.96, 111.18, 119.72,
    124.61, 119.72, 113.62, 111.18, 105.07, 105.07, 109.96, 111.18, 111.18,
    113.62, 113.62, 113.62, 125.83, 135.59, 138.03, 138.03, 130.71, 130.71,
    128.27, 124.61, 150.24, 101.41, 0 ;

 SP = 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72,
    661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72,
    661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72,
    661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72, 661.72,
    661.72, 661.72, 661.72, 661.72, 661.72, 661.72 ;
}

Parameters Log names

Table 15. Drilling Parameters log names
Log name	Description	Type	Required	Remark
`time`	Measured time	float	required	dimension
`DEPTH`	Measured penetration length	float	required	variable
`AS`	Advance Speed (penetration rate)	float	required
`EVP`	Event Particular	integer	optional
`EVR`	Event new Rod	integer	optional
`EVS`	Event start relay	float	optional
`TP`	Tool pressure	float	optional
`TPAF`	Tool Pressure As a Force	float	optional
`TQ`	Rotation pressure (Torque)	float	optional
`TQC`	Casing Rotation pressure	float	optional
`TQAT`	Tool Torque As a Torque	float	optional
`TQCCW`	Torque pressure CounterClockWise	float	optional
`TQCW`	Torque pressure ClockWise	float	optional
`GEAR`	Gear engaged in the gearbox	float	optional
`RSP`	Rotation Speed	float	optional
`RSPC`	Casing Rotation Speed	float	optional
`RPI`	Rotation per Inch index	float	optional
`HP`	Holding Pressure	float	optional
`SP`	Striking Pressure	float	optional
`RV`	Reflected Vibration	float	optional
`WOB`	Weight on bit	float	optional
`SPECE`	Specific Energy	float	optional
`TOTE`	Total Energy	float	optional
`IP`	Injection pressure	float	optional
`IF`	Injection Flow (inlet flow)	float	optional
`OF`	Drilling fluid outflow (Outlet Flow)	float	optional
`IV`	Injection Volume	float	optional
`OV`	Outlet Volume	float	optional
`AP`	Air Pressure	float	optional
`AF`	Air Flow	float	optional
`AV`	Air Volume	float	optional
`WF`	Water Flow	float	optional
`WP`	Water Pressure	float	optional
`WV`	Water Volume	float	optional
`ECM`	Electrical Conductivity of Mud	float	optional
`PHM`	pH of Mud	float	optional
`DO2M`	Dissolved O2 in Mud	float	optional
`TEMPM`	Temperature of Mud	float	optional
`PP`	Pile Profile (PILEUP)	float	optional

Ménard Pressuremeter Test convention

Definition

Ménard Pressuremeter Test is performed by the radial expansion of a tricell probe placed in the ground. This test is specified by the standard ISO 22476-4.

The convention is simply named pressuremeter.

Three different pressuremeter test types are supported by this format.

Table 16. Ménard Pressuremeter Test types
Test type	Description
`ground`	Ménard pressuremeter test in natural soils
`volume_loss`	Equipment volume loss calibration test
`pressure_loss`	Probe pressure loss calibration test

Example of Ménard Pressuremeter Test convention

Example of Ménard Pressuremeter Test convention (ground test type)

  <convention version="1.2">
    <pressuremeter>
      <cu_ref>CPVA001</cu_ref>
      <ground>
        <pressure_loss_filename>50001180101062101P.bor</pressure_loss_filename>
        <cu_height unit="m">1</cu_height>
        <test_depth unit="m">2</test_depth>
        <logfile>data.nc</logfile>
      </ground>
    </pressuremeter>
  </convention>

Common properties

Table 17. Pressuremeter common properties
Property	Description	Type	Required	Example
`cu_ref`	Control Unit ID	text	optional	CPVA001
`thresholds`	Stop and start thresholds	structure (see below)	optional
`stop_cause`	Stop cause	code (see below)	optional	MANUAL

Table 18. Thresholds (optional)
Property	Description	Type
`limit_volume`	Maximum volume to protect the probe	Quantity
`final_volume`	Volume at end of test	Quantity
`limit_pressure`	Maximum pressure to protect the probe	Quantity
`final_pressure`	Pressuree at end of test	Quantity

Table 19. Stop cause (optional)
Property	Description	Type
`MANUAL`	Manual stop	text
`LIMIT_PRESSURE`	Limit pressure stop	text
`LIMIT_VOLUME`	Limit volume stop	text
`FINAL_PRESSURE`	Final pressure stop	text
`FINAL_VOLUME`	Final volume stop	text
`EMERGENCY_STOP`	Emergency stop	text

Volume loss test

Volume loss example

  <convention version="1.2">
    <pressuremeter>
      <cu_ref>CPVA500</cu_ref>
      <thresholds>
        <limit_volume unit="cm3">630</limit_volume>
        <final_volume unit="cm3">550</final_volume>
        <limit_pressure unit="bar">55.00</limit_pressure>
        <final_pressure unit="bar">10.00</final_pressure>
      </thresholds>
      <stop_cause>MANUAL</stop_cause>
      <volume_loss>
        <cover_type>CVR_REINFORCED_MESH</cover_type>
        <probe_type>PRB_G</probe_type>
        <central_cell_diameter unit="mm">63</central_cell_diameter>
        <central_cell_length unit="mm">370</central_cell_length>
        <tubing_type>TUB_COAXIAL</tubing_type>
        <tubing_length unit="m">25</tubing_length>
        <calibration_cylinder_diameter unit="mm">66</calibration_cylinder_diameter>
        <membrane_pressure_loss unit="bar">0.54</membrane_pressure_loss>
        <slotted_tube>true</slotted_tube>
        <central_cell_diameter_inside_slotted_tube unit="mm">44</central_cell_diameter_inside_slotted_tube>
        <logfile>data.nc</logfile>
      </volume_loss>
    </pressuremeter>
  </convention>

Table 20. Volume loss properties
Property	Description	Type	Required	Example
`calibration_cylinder_diameter`	Calibration cylinder diameter	length	required	66 (mm)
`central_cell_diameter`	Central cell diameter	length	required	63 (mm)
`central_cell_diameter_inside_slotted_tube`	outer diameter of the inner part of the probe in the split tube	length	required	44 (mm)
`central_cell_length`	Central cell length	length	required	370 (mm)
`cover_type`	Cover type	code (see below)	required	CVR_REINFORCED_MESH
`membrane_pressure_loss`	Membrane pressure loss	pressure	required	0.54 (bar)
`probe_type`	Type of pressuremeter probe	code (see below)	required	PRB_G
`slotted_tube`	Slotted tube placed around the probe to protect it	boolean	required	true
`tubing_length`	Tubing length	length	required	25 (m)
`tubing_type`	Tubing type	code (see below)	required	TUB_COAXIAL
`logfile`	Name of data file	text	required	data.nc

Table 21. Cover type codes
Cover type	Description
`CVR_RUBBER`	Rubber
`CVR_REINFORCED_MESH`	Reinforced mesh
`CVR_METALIC_MESH`	Metallic mesh
`CVR_METALIC_STRIPS`	Metallic strips

Table 22. Probe type codes
Probe type	Description
`PRB_G`	Type of pressuremeter probe where the central measuring cell is formed by a dedicated membrane over which an external membrane is fitted to form the guard cells
`PRB_E`	Type of pressuremeter probe where the three cells are formed by three separate membranes in line

Table 23. Tubing type codes
Tubing type	Description
`TUB_TWIN`	Parallel lines
`TUB_COAXIAL`	Coaxial line

Pressure loss test

Pressure loss example

<convention version="1.2">
    <pressuremeter>
      <cu_ref>CPVA500</cu_ref>
      <thresholds>
        <limit_volume unit="cm3">630</limit_volume>
        <final_volume unit="cm3">550</final_volume>
        <limit_pressure unit="bar">45.00</limit_pressure>
        <final_pressure unit="bar">10.00</final_pressure>
      </thresholds>
      <stop_cause>MANUAL</stop_cause>
      <pressure_loss>
        <volume_loss_filename>50000240718101441P.bor</volume_loss_filename>
        <logfile>data.nc</logfile>
      </pressure_loss>
  </pressuremeter>
</convention>

Table 24. Pressure loss properties
Property	Description	Type	Required	Example
`volume_loss_filename`	Name of associated volume loss test	text	required	50000240718101441P.bor
`logfile`	Name of data file	text	required	data.nc

Ground test

Ground test example

  <convention version="1.2">
    <pressuremeter>
      <cu_ref>CPVA500</cu_ref>
      <thresholds>
        <limit_volume unit="cm3">630</limit_volume>
        <final_volume unit="cm3">550</final_volume>
        <limit_pressure unit="bar">45.00</limit_pressure>
        <final_pressure unit="bar">39.00</final_pressure>
      </thresholds>
      <stop_cause>MANUAL</stop_cause>
      <ground>
        <pressure_loss_filename>50000240718103320P.bor</pressure_loss_filename>
        <cu_height unit="m">1.5</cu_height>
        <test_depth unit="m">3</test_depth>
        <logfile>data.nc</logfile>
      </ground>
    </pressuremeter>
  </convention>

Table 25. Ground properties
Property	Description	Type	Required	Example
`cu_height`	Height of the control unit relative to ground level	length	required	1 (m)
`pressure_loss_filename`	Name of associated pressure loss test	text	required	50001180101060101P.bor
`test_depth`	Depth of the test relative to ground level	length	required	2 (m)
`logfile`	Name of data file	text	required	data.nc

Data file

Data file is made with the netCDF (3.6+) format. They contain data logs and log names declarations (variables).

Example of data.nc dump

Example of data file (data.nc dump to data.cdl format)

Data.cdl example

netcdf data {
dimensions:
	time = UNLIMITED ; // (14 currently)
variables:
	float time(time) ;
		time:unit = "s" ;
		time:label = "time" ;
	int STEP(time) ;
		STEP:label = "Palier" ;
	float PR1(time) ;
		PR1:unit = "bar" ;
		PR1:label = "PR1S" ;
	float PR15(time) ;
		PR15:unit = "bar" ;
		PR15:label = "PR15S" ;
	float PR30(time) ;
		PR30:unit = "bar" ;
		PR30:label = "PR30S" ;
	float PR60(time) ;
		PR60:unit = "bar" ;
		PR60:label = "PR60S" ;
	float PG1(time) ;
		PG1:unit = "bar" ;
		PG1:label = "PG1S" ;
	float PG15(time) ;
		PG15:unit = "bar" ;
		PG15:label = "PG15S" ;
	float PG30(time) ;
		PG30:unit = "bar" ;
		PG30:label = "PG30S" ;
	float PG60(time) ;
		PG60:unit = "bar" ;
		PG60:label = "PG60S" ;
	float V1(time) ;
		V1:unit = "cm3" ;
		V1:label = "V1S" ;
	float V15(time) ;
		V15:unit = "cm3" ;
		V15:label = "V15S" ;
	float V30(time) ;
		V30:unit = "cm3" ;
		V30:label = "V30S" ;
	float V60(time) ;
		V60:unit = "cm3" ;
		V60:label = "V60S" ;
		V60:scale_max = 500.f ;
	float CREEP(time) ;
		CREEP:unit = "cm3" ;
		CREEP:label = "fluage" ;
	float DELT60(time) ;
		DELT60:unit = "cm3" ;
		DELT60:label = "delt60" ;
data:

 time = 80, 142, 205, 268, 330, 394, 456, 519, 582, 647, 711, 776, 840, 905 ;

 STEP = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 ;

 PR1 = 0.06, 1.08, 1.81, 2.85, 4.01, 5.98, 7.96, 9.8, 13.87, 17.81, 22.05,
    25.77, 29.73, 33.8 ;

 PR15 = 0.06, 0.81, 1.81, 2.82, 3.86, 5.81, 7.82, 9.81, 13.82, 17.85, 21.75,
    25.75, 29.75, 33.76 ;

 PR30 = 0.03, 0.81, 1.82, 2.83, 3.84, 5.85, 7.82, 9.83, 13.82, 17.84, 21.78,
    25.75, 29.77, 33.75 ;

 PR60 = 0.04, 0.82, 1.82, 2.84, 3.86, 5.83, 7.83, 9.82, 13.84, 17.81, 21.76,
    25.75, 29.77, 33.75 ;

 PG1 = 0.11, 0.28, 1.31, 2.14, 3.17, 5.24, 7.14, 9.17, 13.21, 17.14, 21.14,
    25.15, 29.12, 33.09 ;

 PG15 = 0.1, 0.29, 1.18, 2.12, 3.15, 5.19, 7.18, 9.17, 13.15, 17.16, 21.06,
    25.09, 29.06, 33.08 ;

 PG30 = 0.09, 0.28, 1.19, 2.16, 3.17, 5.22, 7.17, 9.16, 13.14, 17.15, 21.1,
    25.08, 29.1, 33.06 ;

 PG60 = 0.08, 0.29, 1.17, 2.14, 3.17, 5.18, 7.18, 9.14, 13.15, 17.13, 21.09,
    25.08, 29.06, 33.08 ;

 V1 = 60, 103, 215, 257, 280, 303, 320, 335, 359, 386, 411, 441, 477, 518 ;

 V15 = 76, 149, 238, 266, 285, 307, 324, 339, 366, 392, 419, 452, 491, 532 ;

 V30 = 85, 176, 241, 268, 287, 308, 325, 340, 368, 395, 423, 457, 498, 540 ;

 V60 = 92, 198, 244, 270, 287, 309, 326, 342, 370, 397, 428, 463, 506, 550 ;

 CREEP = 7, 22, 3, 2, 0, 1, 1, 2, 2, 2, 5, 6, 8, 10 ;

 DELT60 = 92, 106, 46, 26, 17, 22, 17, 16, 28, 27, 31, 35, 43, 44 ;
}

Pressuremeter Log names

Table 26. Pressuremeter log names
Log name	Description	Type	Required	Remark
`time`	Measured time	float	required	NETCDF dimension
`STEP`	Step number	integer	required
`PR1`	Liquid pressure at 1 s ^[3]	float	required
`PR15`	Liquid pressure at 15 s ^[3]	float	required
`PR30`	Liquid pressure at 30 s ^[3]	float	required
`PR60`	Liquid pressure at 60 s ^[3]	float	required
`PG1`	Gas pressure at 1 s ^[4]	float	required
`PG15`	Gas pressure at 15 s ^[4]	float	required
`PG30`	Gas pressure at 30 s ^[4]	float	required
`PG60`	Gas pressure at 60 s ^[4]	float	required
`V1`	Volume of injected liquid at 1 s ^[5]	float	required
`V15`	Volume of injected liquid at 15 s ^[5]	float	required
`V30`	Volume of injected liquid at 30 s ^[5]	float	required
`V60`	Volume of injected liquid at 60 s ^[5]	float	required
`CREEP`	Difference in volumes recorded at 60 s and at 30 s at each pressure hold	float	required
`DELT60`	60 s injected volume change between successive pressure holds	float	required

1. except for Ménard Pressuremeter Calibration Test

2. RGL,relative to ground level

3. Liquid pressure applied by the control unit indicator to the the central cell as read x s after the beginning of the pressure hold

4. Gas pressure applied by the control unit indicator to the guard cells as read x s after the beginning of the pressure hold

5. Volume injected in the central measuring cell as read x s after the beginning of the pressure hold