| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. Investigation Summary | |||
| A1 | All boreholes logged per IS 1892 — stratum identified, samples collected, depth confirmed Acceptance: Bore logs complete with stratum description, colour, consistency, SPT N-values, water table depth | IS 1892 Clause 5 (Field Investigation) | OK NC NA HOLD |
| A2 | Sampling strategy — disturbed and undisturbed samples collected per design Acceptance: Minimum 1 undisturbed sample per 2m depth or as per site design; samples sealed, labelled, transported to lab | IS 1892 Clause 6 (Sampling) | OK NC NA HOLD |
| A3 | In-situ test results recorded — SPT, CPT, or vane shear as applicable Acceptance: SPT hammering procedure per IS 2131 Table 1 (15 blows per 300mm, N-values recorded); CPT tip resistance and sleeve friction; vane shear torque | IS 2131 Clause 4 (Field Tests) | OK NC NA HOLD |
| A4 | Laboratory test programme — classification, consolidation, strength tests completed Acceptance: All samples tested per IS 2720 Part 2 (grain size), Part 5 (liquid/plastic limit), Part 10 (shear strength); results within acceptable range for founding layer | IS 1892 Clause 6 (Laboratory Analysis) | OK NC NA HOLD |
| A5 | Geotechnical report issued — bearing capacity, settlement analysis, founding recommendations Acceptance: Report includes stratum profile, soil parameters (c, φ, γ, E), bearing capacity per IS 2131, settlement analysis, foundation depth recommendation, water table conclusions | IS 1892 Clause 7 (Report) | OK NC NA HOLD |