Study on Optimization of Shield Synchronous Grout Injection in Anhydrous Sand Cobble Formation

Guest Editorial to the Special Issue: Novel Technologies for Grouting, Jet Grouting and Soil Deep Mixing

“…The results indicate the presence of a separation space in the top of waterconducting fracture zone, which develops and closes with the mining of working face. Wang et al (2022) perform orthogonal experiments and multi-objective optimization of mortar performance carried out with BP neural network and genetic algorithms to investigate the influence of various factors on mortar performance for the synchronous grouting of shields in anhydrous sandy cobble stratum, The results show the main factors affecting consistency, bleeding rate, density and compressive strength of the mortar. Liu et al (2022) presented two indirect testing methods, such as the Brazilian tensile strength test and the unconfined penetration test to give an experimental inquiry on its tensile strength on the cementtreated Champlain Sea clay.…”