Bearing Capacity Software (PEYSANJ)

PEYSANJ is designed for bearing capacity and settlement analysis, earth pressure calculation, plate load test and pressure-meter test processing.

SKU: NV08 Category:

The only software for concurrent analysis of soil shear failure and foundation settlement for bearing capacity analysis!

PEYSANJ geotechnical software includes the following analysis modules:

  • Bearing capacity and settlement analysis
  • Stress distribution analysis due to:
    • surcharge behind retaining walls
    • footing pressure
  • Earth pressure coefficients
  • Plate load test analysis
  • Pressure-meter test analysis

Bearing Capacity Analysis

Allowable bearing capacity should satisfy both shear failure and settlement criteria. PEYSANJ uses “Hansen” method for analysis of soil shear failure by considering the effect of groundwater table in bearing capacity analysis. For settlement analysis, “Steinbrenner and Goodier (Timoshenko)” and rigid foundation formulas are used for immediate (elastic) settlement and one-dimensional “Terzaghi” consolidation formula is used for consolidation settlement.

Total settlement of the footing is then calculated by summing up the elastic and consolidation settlements. For each footing size, the minimum values of allowable stresses for shear failure and settlement criteria are compared and the introduced as the “Allowable Bearing Capacity” of the footing.

Download User’s Manual

Processing Menard pressure meter test is easy using PEYSANJ! The analysis is based on ASTM D4719 and input data consist of calibration data, pressure (P) and volume (V) readings, groundwater level, etc.

After computing the elastic portion of the P-V curve, “Menard Modulus (Em)” and “Limit Pressure (Pl)” are reported. Pressure vs volume is also plotted along with elastic and plastic phases of the test. The elastic phase of the loading curve can be edited by the user in order to choose the most reasonable set of Em and Pl.

Static Ka, Kp and Ko

Calculating the active, passive and at-rest lateral earth pressure coefficients based on both Rankin and Coulomb methods. The latter considers the effect of soil-wall friction, backslope, and wall batter angle. The magnitude of the resultant force and its point of application is calculated.

Seismic Kae and Kpe
Lateral earth pressure coefficients for earthquake condition are calculated according to Mononobe-Okabe method for different horizontal and vertical components of the ground acceleration. Detailed values of Kae and Kpe are calculated for every 0.05g steps of av and ah. In addition to earth pressure coefficients, the seismic surcharge load (Pae-Pa) and total seismic force (Pae) behind the retaining wall are presented.

This test is widely used to determine soil elasticity modulus (Es) and modulus of subgrade reaction (Ks). Input data consists of the load (P) applied on the plate, and settlement (S) measured from the gauges. Then PEYSANJ automatically splits different loading-unloading cycles and calculate Ks values for each cycle. Stress-Settlement diagram is also plotted and average Ks value calculated. Another module for converting Ks30 to Ks of the footing is available in this module.

  • Automatically detecting loading / unloading cycles
  • Calculation details for each loading cycle including modulus of subgrade reaction
  • All input data and formula are inserted in final report
  • User can manually determine the elastic phase if necessary

plate load test software