Closure to "Monitoring and Data Analyses of Pressure Changes and Ground Settlements Induced by Slurry TBM Tunneling in a Semiconfined Aquifer: Case Study in the Netherlands".
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| Title: | Closure to "Monitoring and Data Analyses of Pressure Changes and Ground Settlements Induced by Slurry TBM Tunneling in a Semiconfined Aquifer: Case Study in the Netherlands". |
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| Authors: | Bezuijen, Adam1 (AUTHOR) adam.bezuijen@ugent.be, Xu, Tao2 (AUTHOR) taoxu-hit@hotmail.com |
| Source: | Journal of Geotechnical & Geoenvironmental Engineering. Dec2025, Vol. 151 Issue 12, p1-2. 2p. |
| Subject Terms: | *Data analysis, *Grouting, *Tunnel design & construction, *Geotechnical engineering, *Aquifers |
| Geographic Terms: | Netherlands |
| Abstract: | The article provides a response to discussions regarding the monitoring and data analyses of pressure changes and ground settlements during slurry tunnel boring machine (TBM) tunneling in a semiconfined aquifer in the Netherlands. The authors clarify that while grout pressure consistently exceeds pore-water pressure, the peak grout pressure does not influence pore-water pressure, as demonstrated through replotting data and groundwater flow calculations. They also address discrepancies in grout pressure gradients compared to previous studies, noting that variations are due to differences in grout composition and measurement conditions. Additionally, the authors highlight the complexities of grout pressure instrumentation in large-diameter tunnels and the lack of correlation between slurry overpressure and tail void pressure, emphasizing the need for careful consideration of instrumentation in future tunneling projects. [Extracted from the article] |
| Database: | Energy & Power Source |
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