1.Overview
Proving the effectiveness of reinforcement is not only for project delivery but also to meet the local government’s regulatory requirements for building safety (Reliability). We ensure the project quality can withstand third-party scrutiny through a triple system of sensory verification, quantitative monitoring, and compliance acceptance.
II. On-site Visual Verification (Owner Self-Inspection Standards)
After the reinforcement construction is completed and tested through a rainy season cycle, the following phenomena are direct evidence of the effectiveness in stopping settlement:
Crack “Static”: The existing 45° diagonal cracks in walls or beams/columns no longer extend towards both ends, with the crack width remaining constant.
Function Restoration: Adjusted doors/windows that previously jammed no longer experience recurring sticking; the rectified crane beams in the factory operate smoothly without track deviation.
Level StabilityUsing a laser level to detect, the relative height difference between reinforced and unreinforced areas no longer increases.
III. Professional Quantitative Monitoring Standards (Aligned with Indonesian SNI 8460:2017)
Data is the highest authority in proving effectiveness. We strictly adhere to Indonesian national standards and internationally recognized norms:
⑴、Settlement rate control standards (Rate of Settlement)
This is the technical core for determining whether “settlement cessation” is successful. After the reinforcement is completed, a 3-6 month follow-up monitoring period is required:
Short-term stability indicator: Monitor continuously for 15-30 days, with a daily average settlement rate ≤ 0.1mm/d.
Long-term stability indicator: Monitor continuously for 3 months, with a monthly cumulative settlement ≤ 2mm.
Background Note: Monitoring must cover the rainy season (Musim Hujan) to verify foundation stability under extremely high groundwater levels.
⑵、Structural Tilt Control Standards (Tilt Control)
For buildings that have undergone rectification, the following must be met:
Tilt increment: The residual tilt rate increase after reinforcement should be ≤ 0.001L (almost imperceptible).
Structural alignment correction: If deviation correction is involved, the final horizontal deviation should comply with the allowable error range specified in the design requirements.
4. Legal and Industry Compliance Acceptance (Essential for SLF Application)
Large industrial plants or commercial buildings require regular renewal of the SLF (Sertifikat Laik Fungsi) certificate. Our acceptance process directly supports the acquisition of this certificate:
Third-party Review: Supports the property owner in hiring locally qualified experts (Tim Ahli Bangunan Gedung) for on-site inspection.
Complete Technical Documentation: Provide a full set of as-built documents including SPT reports, construction pressure value records (for static pressure piles), material strength reports, and settlement monitoring curves.
SNI Compliance Statement: Clearly indicate that the project complies with SNI 8460:2017 (Geotechnical Design Requirements) and SNI 1726:2019 (Seismic Design Code).
Five, Acceptance Comparison Table: Qualified vs. Unqualified
| Acceptance Dimension | Qualified (Passed) | Unqualified (Failed) |
| Monitoring Data | Rate convergence, tending towards zero | The rate continues to fluctuate with no signs of convergence. |
| Structural Damage | No secondary cracking after repair | New cracks appear at repaired areas or existing cracks enlarge |
| Equipment Operation | Heavy machinery operates smoothly without vibration amplification | Unstable foundation causes precision deviation in delicate equipment |
| Data Integrity | Complete SPT and pile driving record archives available | Lack of construction process records, data cannot be traced |
Six, Summary
The effectiveness of reinforcement is proven by focusing on “data convergence, structural stability, and compliance with regulations.” In complex land environments, we provide a monitoring loop that adheres to standards, offering you both legal and technical safeguards.
Core logic: Preventing sinking doesn’t rely on “experience-based claims,” but on real-time monitoring data.
Is your current building applying for or preparing to renew its SLF certificate? We can customize the frequency and format of monitoring reports for you according to SLF’s specific requirements.