Title: Experimental research on cement-soil mixture ratio of track foundation cement mixing pile
Abstract: Abstract In order to ensure the feasibility and economy of the construction scheme of cement mixing piles for track foundation, a cement-soil indoor mix ratio test was carried out. Selected ordinary Portland cement and sulfate-resistant cement, groundwater and tap water, three mixing ratio experiments were carried out. The experimental study found that the cement-soil has high strength, which can fully meet the bearing capacity requirements of the track foundation, and the cement content can be appropriately reduced. The strength of the solidified soil increases with the increase of the cement content, and the groundwater has no adverse effect on the strength of the cement-soil. The strength of solidified soil with P.HSR 42.5 cement is not significantly higher than that of P.O42.5 cement. Even in BDQ1 and BD4 track foundations, the strength of solidified soil with P.O42.5 cement is significantly higher than that of P.O42.5 cement.