Abstract
Formulating solution to obtain the required engineering properties by means of stabilizing the soil for placing infrastructural unit without undergoing large settlement, grouting is widely used restoration method for improving the relative density of the soil strata. This paper has analyzed two case scenarios about soil stabilization to accommodate reinforced cement concrete (RCC) structure to facilitate production units. Considering the soil characteristics and to avoid further collapse of the nearby establishment, injecting lime–cement composition to strengthen the loosen earth bearing capacity at certain depth has been followed. Accordingly, researchers have shown to mend on the discrepancy happened in both cases regarding strengthening of disturbed soil strata up to 2 to 2.5 times with respect to Standard Penetration Test-Number of Blows (SPT-N) values after carrying out pre- and post-dynamic cone penetration tests (DCPT) up to an average depth of 6 to 6.5 m from finished ground level (FGL), by using of grout injection procedure. Following methodology has been emanated and after conducting several trials resulted in appreciable improvement in soil consistency. Researchers believe that the study will be comparatively more suitable for improving problematic soils in South-Asian continent. In both cases, desired soil bearing capacity has been attained in most economical way and within stipulated time frame.
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Acknowledgements
The authors acknowledge the research and study enabling environment created by the 6 MTPA Integrated Steel Plant Project by TATA Steel, Kalinganagar, Odisha, India and 0.8 MTPA Integrated Steel Plant Project by GPH Ispat, Chittagong, Bangladesh. We would like to thank M. N. Dastur and Company (P) Ltd. team especially Mr. Partha Bandyopadhyay, Technical Director and Head—Construction; Mr. Pritam Kumar Chatterjee, Technical Director and Site-in-charge; Mr. Suvendu Dey, Former Technical Director-Civil; Rupa Ghose, Sr. Principal Engineer—Civil; Arindam Bhattacharyya, Principal Engineer—Construction; Rajiv Kumar, Sr. Principal Engineer—Construction; laboratory technicians and local contractors to help us find the way of doing the study.
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Paul, D., Azmain, M. Case Study on Applications of Lime–Cement Grouting to Strengthen Soil Characteristics. Indian Geotech J 52, 181–204 (2022). https://doi.org/10.1007/s40098-021-00528-5
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DOI: https://doi.org/10.1007/s40098-021-00528-5