Tests and Analytical Model to Predict Geotextile Tube Performance in the Field: A Case Study

C. R. Ratnayesuraj, Z. B. Kiffle, Shobha K Bhatia, G. Lebster, C. Timpson

Research output: Contribution to conferencePaper

Abstract

Geotextile tubes are used in dewatering applications over many decades for a variety of slurries, sediments, and wastes. With the increased use of geotextile tubes dewatering in recent years, the desire to maximize both the dewatering rate and retention lead to the use of chemical coagulants and flocculants, which has become a standard practice in geotextile dewatering projects. A variety of small-scale, medium-scale, pilot-scale test methods, and models are used to predict geotextile tube dewatering performance in field. In addition, analytical models have been developed using pilot-scale test and pressurized 2-dimensional dewatering test (P2DT) to predict the dewatering behavior in field and in the lab. These analytical models can be used to predict the dewatering behavior under alternative conditions, including the changes in pumping rates, solids concentration of the slurry, number of dewatering cycles, dewatering duration, final solids concentration of filter cake, and in cumulative volume of slurry. Analyzing the alternative dewatering scenarios using analytical models prior to full-scale implementation, without conducting many dewatering performance tests, is a great benefit in terms of time and money. This study focuses on a geotextile dewatering project of a glue industry settling pond, and the material had different geotechnical properties from the traditional dredged sediment. Multiple lab and field tests were conducted in this study and analytical model was used to evaluate the dewatering performance of geotextile demonstration tests (GDT) in the field. It was found that GDT results were close to the P2DT results and the analytical model successfully predicted GDT results.

Original languageEnglish (US)
Pages406-421
Number of pages16
DOIs
StatePublished - Jan 1 2018
Externally publishedYes
Event3rd International Foundation Congress and Equipment Expo 2018: Recent Developments in Geotechnical Engineering Practice, IFCEE 2018 - Orlando, United States
Duration: Mar 5 2018Mar 10 2018

Other

Other3rd International Foundation Congress and Equipment Expo 2018: Recent Developments in Geotechnical Engineering Practice, IFCEE 2018
CountryUnited States
CityOrlando
Period3/5/183/10/18

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering

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  • Cite this

    Ratnayesuraj, C. R., Kiffle, Z. B., Bhatia, S. K., Lebster, G., & Timpson, C. (2018). Tests and Analytical Model to Predict Geotextile Tube Performance in the Field: A Case Study. 406-421. Paper presented at 3rd International Foundation Congress and Equipment Expo 2018: Recent Developments in Geotechnical Engineering Practice, IFCEE 2018, Orlando, United States. https://doi.org/10.1061/9780784481622.032