DMT-W3
The Dilatometer Marchetti Test (DMT) is an in-situ test for the determination of various key soil parameters used for geotechnical design, like lateral pressure coefficient Ko, pore water pressure U, undrained shear strength Cu, effective angle of internal friction,coefficient of subgrade reaction Kn, over-consolidation ratio OCR, compression modulus, modulus of elasticity, shear modulus, layer classification, compaction control, unit weight, determination of liquefaction of saturated soil and soon. Generally the flat dilatometer can be pressed into earth by CPT machine, and can also by the hammer of SCPT machine.
The Dilatometer Marchetti Test (DMT) is an in-situ test for the determination of various key soil parameters used for geotechnical design, like lateral pressure coefficient Ko, pore water pressure U, undrained shear strength Cu, effective angle of internal friction,coefficient of subgrade reaction Kn, over-consolidation ratio OCR, compression modulus, modulus of elasticity, shear modulus, layer classification, compaction control, unit weight, determination of liquefaction of saturated soil and soon. Generally the flat dilatometer can be pressed into earth by CPT machine, and can also by the hammer of SCPT machine.
The main part of the flat dilatometer consists of a flat stain- less thin steel blade with a circular expandable steel mem- brane of 60 mm diameter on one side. The test involves driv- ing this steel blade into the ground, inflate the steel mem- brane and measure the corresponding pressure and defor- mation. Penetration of the steel blade is usually done using common in-situ penetration equipment as for instance those used for Standard Penetration Test. The membrane of the blade is connected to a gas pressure unit on the surface which provide the pressure to inflate the steel membrane.
TECHNICAL PARAMETERS
• Flat blade Length: 230-240mm Width: 95mm Thickness:15mm
• Steel Membrane 60mm
• Rated air pressure 6MPa
• Test Depth 0-50m Special strata can be deepened
• Indicating error ±0.1%F.S
• Test result hole storage quantity can reach 9999 No.
• Uses the rechargeable Lithium batteries, standby time up to 24 hours
DMT-W3 Dilatometer Marchetti Test Kit complete set includes below items:
DMT-W3/01 Control unit
DMT-W3/02 Control Recorder
DMT-W3/03 Pressure regulation valve
DMT-W3/04 Air supply tube
DMT-W3/05 Solid probe head
DMT-W3/06 Flat blade
DMT-W3/07 Membrane
DMT-W3/08 Membrane gasket
DMT-W3/09 Standard pneumatic-electric cable
DMT-W3/10 Calibration cable
DMT-W3/11 Air pressure gauge
DMT-W3/12 Probe upper connector
DMT-W3/13 Calibration unit
DMT-W3/14 English operation manual
DMT-W3/15 Tool parts includes below items
DMT-W3/1501 Monkey spanner 6 inch
DMT-W3/1502 0.5mm Thickness gauge
DMT-W3/1503 9—11 Hard wrench
DMT-W3/1504 150mm Ruler
DMT-W3/1505 10 inch Large spanner
DMT-W3/1506 Ring screw
DMT-W3/1507 4 inch Instrument driver
DMT-W3/1508 Wire-cutter
DMT-W3/1509 Stainless steel tweezer
DMT-W3/1510 Pulling tool
DMT-W3/1511 BrushSealing parts
DMT-W3/1512 Sealing parts
