One，Overview
Correction is not just a simple “straightening”; it must follow the scientific principle of “first stabilizing the foundation, then precisely straightening, and finally reinforcing to prevent recurrence.” For common coastal silt, peat soil, and dense urban environments, we mainly employ the following highly adaptable “minimally invasive” techniques.
Two，CommonRectificationMethods
⑴、Foundation Reinforcement+ Settlement-Control Method (Settlement-Control Method)
Method: First, construct static pressed piles under the foundation on the side with significant settlement (the lower side), penetrating the soft soil layer to reach the bearing stratum, completely sealing off the sinking space. Then, perform controlled soil removal or wire saw cutting on the higher side, utilizing the house’s own weight to allow the higher side to descend slowly and evenly.
Adaptive advantages: No vibration, low noise, making it highly suitable for densely populated areas like Jakarta (Kawasan Padat Penduduk) with extremely small building gaps. It causes no disturbance to neighbors and offers extremely high precision.
⑵、Foundation Reinforcement+ JackingRectificationMethod
Method: Similarly, first install piles on the lower side to stop settlement, then install a jack lifting system above the foundation. Through synchronized control, the lower side is slowly lifted like “changing a tire.”
Adaptation advantage: Extremely short construction period. Commonly used to address waterlogging (Banjir) in low-lying areas—while correcting the tilt, it simultaneously raises the entire house, solving both the issues of tilting and flooding during the rainy season in one go.
⑶、Grouting LiftingRectification
Method: Perform grouting under the foundation on the lower settlement side, utilizing the expansive force of the grout to generate a significant upward lifting force.
Adaptation Advantage: No need for entry, production stoppage, or relocation, while simultaneously reinforcing soft soil. It resolves tilting, settlement, and low-lying issues in one go. Extremely suitable for Indonesian shops, 24-hour factories, or mosques conducting religious activities, making it the least disruptive solution currently available.
⑷、Slope Anti-Slide Piles + Combined Rectification (For highland areas like Bandung/Bogor)
Method: For tilting caused by slope sliding, deep anti-slide piles (Bored Pile) or soil nailing walls must first be constructed to stabilize the slope, followed by rectification.
Adaptation Advantage: Specifically addresses lateral sliding (Landslide) triggered by heavy rain in mountainous areas, eliminating the risk of secondary tilting at its root.
Three， Standard Construction Process: Ensuring “Zero Risk” in Rectification %% Professional rectification must adhere to the following strict procedures to comply with SNI safety assessment standards:
Professional rectification must follow the strict procedures below to comply with SNI safety assessment standards:
GeologySurveyExploration: Accurately determining the depth of soft soil layers in Indonesia’s variable soil conditions.
Settlement stabilization pretreatmentThe principle is: “First seal the bottom, then correct the deviation.” Blindly attempting to rectify deviation without first stopping the settlement can lead to structural fractures in the building during operations.
Millimeter-level fine-tuning: Daily correction speed is controlled within 1~5mm. Self-built houses generally have weak rigidity, and slow rectification ensures no secondary severe wall cracking occurs.
Closed-loop monitoring data: Continuous monitoring of tilt direction and rate with timely analysis and feedback to ensure balanced force distribution in the house.
Foundation “water sealing” operationAfter rectification, the apron and drainage system must be improved to prevent frequent heavy rains from eroding the foundation again.
Four, Summary and Recommendations
Correction is a precise minimally invasive procedure. When selecting a solution, consider not only the cost but also its adaptability to the soft soil foundation.
If you are in a downtown area: It is recommended to choose “anchor static pressure piles + forced settlement” to avoid legal disputes with neighbors due to vibrations (UU No. 28/2002).
If you are in a low-lying flood-prone area: Opt for the “lifting process,” which simultaneously addresses tilting and flooding issues.
If you are a factory or shop: Choose “grout lifting” to ensure uninterrupted business for a day.
We possess extensive practical experience and are well-versed in various types of building foundations (Sloof/Footing Foundations). Our solutions not only provide precise leveling for you but also ensure long-term stability through deep foundation stabilization, keeping your structure steady even during earthquakes and rainy seasons.
Does your property suffer from water accumulation on the ground due to tilting? We can tailor a dual-effect “tilting correction + elevation” plan for you based on the terrain.