“…Lots of research have been carried out using this technique, the majority of which at the laboratory scale, in columns (several centimetres to metres) (Mirmohammad Sadeghi et al, 2015;Rowshanbakht et al, 2016;Zhao et al, 2014). A few researchers carried out large-scale in-situ tests (Esnault Filet et al, 2019;Gomez et al, 2015Gomez et al, , 2017van Paassen et al, 2010); some others set up comprehensive models (Barkouki et al, 2011;Fauriel & Laloui, 2012;Gai & S anchez, 2019;Mahanty et al, 2014) or carried out microscopic visualisation of the fabric of cemented soils (Li et al, 2017;Terzis & Laloui, 2019). This research on MICP in geotechnical field mainly concerned the following aspects: (1) exploring the mechanisms to optimize the effectiveness of soil bio-cementation through the study of different factors, (2) measuring the properties (especially the mechanical properties) of bio-cemented soils.…”