Six-axis cement soil mixing pile

Abstract

The invention provides a six-axis cement soil mixing pile. Six cement soil mixing piles are formed at one time and overlapped seamlessly, so that joints formed by original single-axis or two-axis cement soil mixing pile are reduced, the water-stopping effect and construction efficiency can be improved, the amount of labor used is reduced, and the construction period can be shortened by more than 2/3.

Description

Technical field [0001] The invention relates to a cement-soil mixing pile for strengthening soft soil and supporting foundation pits in geotechnical engineering, and particularly relates to a six-axis cement-soil mixing pile in the field of improving the strength of soft soil and supporting water and soil retaining of foundation pits. Background technique [0002] When strengthening the weak soil layer and supporting the foundation pit, the method of mixing cement slurry and soil is often used to form a cement-soil mixing pile, thereby greatly improving the strength and water resistance of the weak foundation. Compared with three-axis mixing piles, traditional single-shaft mixing piles and two-shaft mixing piles have the advantages of low water-cement ratio, less replacement soil, small cement content, and low cost within a certain range. However, single-shaft mixing piles or two-shaft mixing piles are formed by connecting one or two equal-diameter cylinders, such as figure 1 As ...

AI Technical Summary

Problems solved by technology

However, single-shaft stirring piles or two-shaft stirring piles are formed by the intersection of one or two equal-diameter cylinders, such as figure 1 As shown, a lap joint is formed between each pile or every two piles, which is easy to cause splits and leakage, which has a great impact on the water-tightness of the cement-soil mixing wall

For the single-axis or two-axis cement-soil mixing pile machine, its power is small, and the stability of the pile frame is poor

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