Ev2 & Ev1 Test

EV1 and EV2 are field tests conducted to determine the modulus of subgrade reaction of soil at different strain levels, which is essential for foundation and pavement design. These tests are variations of the Plate Load Test using small and large plates to simulate different stress conditions.

EV1 and EV2 Tests are field methods used to determine the deformation modulus of soil, which is critical for designing safe and stable foundations and pavements. EV1 measures soil response under light loads, while EV2 evaluates behavior under higher design loads. These tests help engineers predict settlements, assess soil stiffness, and optimize foundation or pavement design, ensuring durable and economical construction.

The EV1 and EV2 tests provide key soil design parameters used in foundation and pavement engineering

  1. Modulus of Subgrade Reaction (EV) – Represents the stiffness of the soil and its The EV1 and EV2 tests provide key soil design parameters used in foundation and pavement engineeringability to resist deformation under load.

    • EV1: Modulus at light loads (initial soil response).

    • EV2: Modulus at higher loads (representative of working or design loads).

  2. Settlement Characteristics – Helps predict the amount of settlement under different load levels.

  3. Elastic Modulus of Soil – Used in structural and pavement design calculations to ensure safe load distribution.

  4. Design Stress-Strain Relationship – Indicates how soil will deform under increasing loads, useful for foundations and pavements.