Automatic, high-frequency measurements and analytical predictions help minimize uncertainties in settlement calculations, particularly in heterogeneous soil compositions. This article explores the different phases of the monitoring process and how BAEC, in combination with Locator One, contributes to more efficient ground management.
Design and Preparation
Before a construction project begins, the soil is thoroughly analyzed using cone penetration tests (CPTs). These measurements capture critical soil parameters such as resistance, permeability, and compressibility. The collected data is integrated into the BAEC software, enabling an initial settlement prediction. This allows for the early identification of risk zones and provides insight into how the soil will behave during and after construction. All data is clearly visualized in dashboards featuring graphs, maps, and reports.
Staged Embankment Construction
For construction projects on soft ground, embankment construction must be executed in phases, with each layer between 0.5 and 1.0 meters high, requiring stabilization time between stages. If the process is accelerated too much, it can lead to instability and subsidence. Traditionally, stability is monitored using survey stakes and pore water pressure meters, but these methods are not always reliable. Manual settlement rod measurements are also used, but they are prone to errors, data gaps, and inconsistencies.
By using BAEC and Locator One, embankment strategies can be optimized with real-time data. Instant feedback on subsurface behavior allows for faster yet safe construction progress. This reduces the total settlement time and prevents issues such as compressed drainage ditches, which would otherwise require additional earthworks and cause delays.
Settlement Progress and Section Release
After embankment construction, the ground must stabilize for a specific period before meeting the residual settlement criteria. Traditionally, this period is predefined based on theoretical models, incorporating a margin of uncertainty. BAEC helps reduce this uncertainty by providing frequent and highly accurate measurements, leading to better residual settlement predictions and a lower risk profile.
Through BAEC's automated analysis, geotechnical engineers can determine with greater precision and reliability when a section meets settlement criteria. Up-to-date predictions of settlement duration and release timing enable the timely availability of excess sand for other uses. Additionally, early detection of deviations allows for proactive measures, optimizing project efficiency.
Predicting Creep and Residual Settlement
As time progresses, soil settlement behavior changes, with creep becoming an increasingly significant factor. This process fully manifests only after the consolidation phase has been completed and excess pore water pressure has dissipated. BAEC offers advanced analytical capabilities to accurately predict creep behavior and residual settlement.
For geotechnical engineers, this means precise determination of remaining settlement and a narrower prediction range. For project managers and site engineers, it provides crucial information for risk assessment and mitigation, particularly for applications such as dike height determination and transition zones between embankments and structures.
The BAEC system introduces an innovative and accurate approach to settlement monitoring and prediction. By leveraging advanced sensor technology and data analysis, it reduces uncertainties, enabling more efficient project planning and execution. This results in improved ground management, cost savings, and enhanced control over settlement processes. With BAEC, project owners can be confident that their projects are managed optimally from design to long-term monitoring.
More information about this project can be found here.