... of cement-soil mixing piles in the reinforcement of deep soft foundations, the composite drainage cement-soil mixing pile technology is proposed. This technology incorporates prefabricated vertical drains on the side of the cement-soil pile, followed by vacuum drainage consolidation to improve the quality...

..., combining visual inspection, scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis to quantify both the physical and chemical degradation of jute drains. An analytical radial consolidation model incorporating soil–drain interface properties is developed...

... Patrick Wong (Patrick.wong@tetratech.com) 30 04 2025 08 10 2025 © 2025 Emerald Publishing Limited 2025 Emerald Publishing Limited Licensed re-use rights only consolidation finite-element modelling ground improvement post-construction & differential settlement rigid...

... a staged construction approach supported by instrumentation and monitoring. Performance criteria were established based on NZ Transport Agency requirements. Ground improvement was designed to accelerate primary consolidation and reduce long-term settlement. An observational approach was adopted to manage...

... with prefabricated vertical drains, installed through static pile pressing and subsequently subjected to vacuum negative pressure for the consolidation of surrounding soil. To evaluate the efficacy of PDP technology, a comparative analysis was conducted between precast pile and PDP, incorporating field testing...

...Sinat Koslanant; Chaiyasat Sakulsaksri; Chaiyathawat Boonyong; Pornpot Tanseng In this article, two curve fitting observational methods for predicting radial consolidation settlement are proposed. The methods utilize computer programs with iterative optimization algorithms and numerical integration...

... ( 1 + ω 0 ) 1 + ω 0 G s γ w H 2 consolidation ground improvement settlement/shear strength The main parameters of measurement during preloading are settlement, pore-water pressure and undrained shear strength. However, due to the complexity...

...R. P. Aparna, PhD; R. G. Robinson, PhD; S. R. Gandhi, PhD Vertical drains installed in soft clay deposits enhance the rate of consolidation in preloading projects. Using a mandrel to install the prefabricated vertical drains, its insertion and withdrawal will result in the remoulding of the soil...

... the effect of surcharge loads during curing of lime stabilisation of Cochin marine clays. In the case of lime-stabilised soil cured under surcharge loads, it is necessary to consider two processes – that is, cementation and consolidation—along which the structures of stabilised soils evolve. These two...

... undesirable settlements prior to erection of permanent infrastructure. Recently, the ground improvement technique has been adopted in combination with many other techniques. The current design methodology for surcharging based on the concept of average degree of consolidation is inadequate, as all the primary...

.... Excessive consolidation settlements can affect the performance of railway tracks built on the soft subgrade. The consolidation behaviour under railway loading conditions with rest periods has not been evaluated thoroughly. In this study, laboratory testing was conducted to investigate the influence...

...Yu Guo, PhD, PEng; Julie Q. Shang, PhD, PEng Electrokinetic (EK) consolidation has been proven to effectively consolidate ultra-soft geomaterials, such as coal washeries, mine tailings, oil sands tailings and so on. The conventional consolidation model based on the small strain theory encountered...

... performance. The technique, which consists in the installation of horizontal vacuum layers within the dredged soil mass, with the aim of reducing the soil volume and accelerating the consolidation while filling is underway, was successfully implemented for the first time in the port of Gaeta (Italy...

... of the soil was much lower than the load it was to support, the subsoil condition was improved by installing PVDs in combination with preloading. Thus the rate of consolidation of the clay stratum was increased. The band drains were installed up to a depth of 14·2 m at a spacing of 1·6 m. The intensity...

... preloading method, the explosive replacement method and the dynamic consolidation method, are introduced. Case studies are presented to illustrate the applications of each method in road or runway constructions. The principles and techniques related to each method are explained. The advantages...

.... The effect of the changes is reflected either in compression during the loading cycle or in swelling during rebound in one-dimensional consolidation tests, depending on the rate of formation of these minerals, which in turn depends on the concentration of alkali solution. Lime slurry solution can be used...

...S. W. Yan; J. Chu A case of using the vacuum preloading method to improve the foundation soil for a road in Tianjin, China, is presented. A vacuum load of 80 kPa was applied for 90 days to consolidate a 20 m thick soft clay layer. The ground settled for about 1·5 m. The average degree...

...I. Shahrour; N. Ata This paper includes a numerical study of the consolidation of micropiles submitted to lateral loading. It is performed using a three-dimensional finite-element modelling with Biot's theory for the fluid-skeleton coupling. The behaviour of the soil is described using...

...V. Choa; M. W. Bo; J. Chu Reclamation in Changi East, Singapore involved the formation of 2000 ha of land. The use of prefabricated vertical drains, combined with surcharge, was required to accelerate the consolidation settlement of the underlying soft compressible soil throughout most of the area...

...D. T. Bergado; A. S. Balasubramaniam; M. A. B. Patawaran; W. Kwunpreuk The response of reconstituted soft Bangkok clay to electroosmotic consolidation was investigated using the small cylinder electro-osmotic cell and the large consolidometer. Test results indicated that employing electro-osmosis...