Influence of oligomeric surfactants on the strength of hard rock formations: Experimental Insights and implications
Abstract
This study investigates the influence of oligomeric surfactants on the physical properties of hard rock formations, pivotal for optimizing tunneling operations. Our findings reveal temperature-dependent solubility trends for seven surfactants in tap water, with exceptions noted for certain types. By examining adsorption-induced strength reduction mechanisms using surfactant solutions, significant potential for energy and material savings in rock disintegration processes is identified. Additionally, the study explores water absorption in various rock types and elucidates the adsorption-induced strength reduction mechanism of hard rock formations using oligomeric surfactants. Overall, our research provides valuable insights into chemical interactions between surfactant solutions and rock surfaces, offering implications for industrial applications and guiding future research endeavors.