Maseeh Summer Undergraduate Research Experience

Funding Source

Undergraduate Research and Mentoring Program (URMP)

Document Type

Poster

Publication Date

2025

Abstract

Earthquake liquefaction is the process of soil drastically losing strength, causing immense damage and settlement to buildings. De-saturated soil is less susceptible to liquefaction compared to saturated soil. MID introduces nitrogen gas to de-saturate the soil and is less disruptive compared to other soil-mixing methods. The site we are looking at successfully de-saturated in 2019. Since then, it has re-saturated. The objective of this research is to understand if re-treatment is still applicable. Over 5 weeks, a total of 1266.16 gallons of injection solution was injected. Vp monitoring indicates soil has successfully de-saturated and chemical strip tests and electrical conductivity monitoring indicates denitrification process is occurring. Re-treatment can successfully be implemented

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