ISKRIT / Site investigation & geotechnics / Plate load · pressuremeter · pumping
Site investigation & geotechnics
In-situ soil tests: deformation modulus, permeability coefficient
From plate load and pressuremeter tests the tool computes the deformation modulus, and from pumping tests the permeability coefficient by the Dupuit formula.
Data current as of 2026-09-26
Standards
Plate load test to a standard of your choice: ASTM D1196 with the rigid circular plate factor and the modulus of subgrade reaction, or DIN 18134 with Ev1, Ev2 and the Ev2/Ev1 ratio from the second-degree fit. Pressuremeter as the Menard modulus per ASTM D4719 and EN ISO 22476-4. Pumping tests by the Dupuit formulas. The GOST 20276 branch with its embedment factor and Kr tables stays on the Russian version of the calculator.
Input
Load and settlement increments, or pumping test data.
Output
Deformation modulus, kf, curve.
What it does
- Deformation modulus, permeability and the test chart
- Load field tests from Excel, export the schedule to XLSX
- Calculations are stored on the server and reopen next time, company letterhead with signatures
Price
Free in full, no sign-up and no payment.
Open the calculator →Questions
Which tests are supported?
Plate load, pressuremeter, and pumping tests.
Which formula for pumping?
The Dupuit formula for steady-state flow to a well.