Interior Experimental Study on Engineering Properties of the Modified Tonhaltig Phyllite

Xin Ping Li; Ya Ni Lu; Xing Hong Wu

doi:10.4028/www.scientific.net/AMR.243-249.2586

Paper Titles

The Resilience Deformation Rules Test Research of the Soft Soil in the Unloading Condition
p.2560

An Innovation Simulation Method for Flow State Evolution Laws of Water Inflow and Inrush in Course of Tunnel Excavation (Part I: Theories)
p.2565

Study on the Relationship between Parameters of Deterioration Creep Model of Rock under Different Modeling Assumptions
p.2571

Research on Punched Pile Construction–Induced Dynamic Response of Bridge Pile Foundation
p.2581

Interior Experimental Study on Engineering Properties of the Modified Tonhaltig Phyllite
p.2586

Study on the Correlation between the Stability of Slope and the Intensity of Rock Layer by Simulation Experiment
p.2591

Laws of Formation and Evolution of Pressure Arch in Coal Mining Adjoining Rock
p.2596

Effects of Complex Initial Stress State Parameters on Dynamic Shear Modulus of Loess
p.2601

Study on Tensile-Shear Failure of Fractured Rock Mass under Strong Seismic Load
p.2607

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 243-249Interior Experimental Study on Engineering...

Interior Experimental Study on Engineering Properties of the Modified Tonhaltig Phyllite

Abstract:

In view of the fact that large amounts of tonhaltig phyllite were found along the Shi-Tian expressway line, these soft rocks could not meet the roadbed filling requirements. It was necessary to improve the weathered soft rocks to satisfy the engineering demands. Interior comparative tests research on seven modified methods were carried out such as part in different proportions of cement、sand or stone bits, with soft rock of different water contents being artificial to mix and stir evenly, then unconfined compression strength of the samples at different cement quantity、different curing ages were compared; the optimum water content and and maximum dry density were determined through the compaction test; In addition, the principal effect of CBR value was analyzed. thus the best modified way was defined, the aim was to provide reference of theory and examination for further design and engineering application on weathered rock of expressway roadbed construction.