Ground Improvement through Permeation Grouting

DOI

10.2991/978-94-6463-900-1_33How to use a DOI?

Keywords

Ground Improvement; Permeation Grouting; SPT N-value; Bearing Capacity; Soil Permeability

Abstract

The bearing capacity and permeability of the soil are two important factors that significantly influence the design and construction of structures. These factors determine the ability of the soil to support loads without experiencing excessive settlements and are crucial in ensuring the long-term stability of structures. In cases of unsuitable soil conditions, ground improvement techniques must be employed. One of these is permeation grouting, wherein low-viscosity solutions are introduced into the ground without causing major disturbance. This paper examines the effectiveness of permeation grouting by comparing the Standard Penetration Test (SPT) N-values, soil permeabilities, and soil bearing capacities before and after grouting. Soil investigation, which includes borehole drilling, sampling, and laboratory testing, was conducted both before and after permeation grouting. The SPT N-values were obtained from borehole drilling, and the soil samples collected from the site underwent laboratory testing following ASTM standards. From this, the soil classification, index properties, and coefficients of permeability were obtained. The analysis of the pre- and post-grouting data showed a general increase in the SPT N-values, particularly in areas where the grout holes are relatively concentrated. Calculations of the bearing capacities of the soil, considering both the ultimate capacity (calculated using Terzaghi’s general shear failure formula) and a maximum settlement of 25 mm (calculated using Settle3D software), showed a significant increase in the average soil bearing capacities. Lastly, results from the permeability tests showed a decrease in the average permeability of the soils, suggesting that permeation grouting effectively filled up the voids in the underlying soils. Overall, the findings highlight the effectiveness of permeation grouting in improving the soil conditions.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Ma. Rosella B. Mantal
AU  - Noreen Joy T. Guillermo
AU  - Marc Arthur Z. Go
AU  - Alexis Philip A. Acacio
AU  - Lestelle V. Torio-Kaimo
PY  - 2025
DA  - 2025/12/07
TI  - Ground Improvement through Permeation Grouting
BT  - Proceedings of the Rocscience International Conference 2025 (RIC 2025)
PB  - Atlantis Press
SP  - 339
EP  - 346
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-900-1_33
DO  - 10.2991/978-94-6463-900-1_33
ID  - Mantal2025
ER  -