PLATE MAGNET
FINISHED GROUND
LEVEL
REFERENCE NUMBER TO BE
PERMANENTLY MARKED ON TO CAP.
MANHOLE COVER OR SIMILAR
500
MAX
FINISHED GROUND LEVEL
ACCESS PIPE
SPIDER MAGNETS
SOIL
100
MIN
GROUT
200mm BOREHOLE
20 DIA. STEEL ROD
NON-METALLIC SLEEVE
25mm THK MILD STEEL PLATE
MIN. DIMENSIONS 500x500mm
ORIGINAL GROUND
LEVEL
500
SETTLEMENT MARKER
DATUM MAGNET
FIXED IN PLACE
BY SET SCREWS
BOTT. CAP OF
ACCESS PIPE
MAGNETIC SETTLEMENT GAUGE
REFERENCE NUMBER TO BE PERMANENTLY
MARKED ONTO CAP/STEEL BARREL.
MANHOLE COVER OR SIMILAR
FINISHED GROUND
LEVEL
REFERENCE NUMBER TO BE PERMANENTLY
MARKED ONTO CAP/STEEL BARREL.
LOCKABLE SCREW CAP
MANHOLE RING OR SIMILAR
TILT SENSOR
(UNIAXIAL OR BIAXIAL)
50mmØ CAST IRON PIPE
FILL ABOVE BASE PLATE TO BE COMPACTED
BY HAND OPERATED COMPACTION PLANT TO
95% MDD. ONE DENSITY TEST TO BE UNDER
TAKEN FOR EACH 2m LIFT.
300mmØ THIN WALL
PIPE SLEEVE
GAUGE LENGTH
20mmØ BAR WELDED TO BASE PLATE
AND EXTENDED AS FILL IS PLACED
CAP
STEEL WATER BARREL
FINISHED GROUND
LEVEL
NOT LESS THAN
1mm
NOT LESS THAN
200mm
FINISHED GROUND AND/OR TOP
OF EMBANKMENT DURING
FILLING OPERATIONS
REFERENCE NUMBER TO BE PERMANENTLY
MARKED ONTO CAP/STEEL BARREL.
MANHOLE COVER OR SIMILAR
AIR VENTS
CONCRETE MIX PLACED AFTER
INSTALLATION OF STEEL BARREL
GAUGE EXTENSION ROD
OR TUBE
CLAY BENTONITE/CEMENT GROUT
BOREHOLE
WHEEL ASSEMBLY
NAVI MUMBAI INTERNATIO
COUPLERS
NOT LESS
THAN 500mm
INCLINOMETER CASING
U.P.V.C. TUBING
POROUS ELEMENT
ORINGINAL GROUND AFTER
CLEARING AND TOP SOIL STRIPPING.
COMPACT EXISTING GROUND BELOW
PLATE TO 95% MDD.
GROUT
CLAY BENTONITE/CEMENT IN
BAGS OR BENTONITE PELLETS
AS SPECIFIED
1mm
SAND FILTER
SURROUND
CLAY BENTONITE/CEMENT GROUT
500x500x50mm STEEL BASE PLATE
ORIGINAL GROUND SETTLEMENT MARKER
INCLINOMETER
STANDPIPE PIEZOMETER