Cement soil wall inner inserting rigidity adjustable I-shaped prefabricated pile support structure and construction method thereof

Abstract

The invention discloses a cement soil wall inner inserting rigidity adjustable I-shaped prefabricated pile support structure. The cement soil wall inner inserting rigidity adjustable I-shaped prefabricated pile support structure comprises a cement soil wall for water stopping and rigidity adjustable I-shaped prefabricated piles arranged in the cement soil wall and used for stopping soil. A concrete crown beam is arranged at the top ends of the rigidity adjustable I-shaped prefabricated piles. The specific value of the short edge to the long edge of a pile body of each rigidity adjustable I-shaped prefabricated pile ranges from 0.55 to 0.6. The concrete strength grade of the rigidity adjustable I-shaped prefabricated piles ranges from C55 to C80. The adaptive stratum range of the cement soil wall is wide, discreteness is small, strength is high, up-down strength is uniform, and the water isolation performance is good. The support structure is easy to operate, and construction is convenient, fast and reliable. Meanwhile, the characteristics that the concrete strength grade of the rigidity adjustable I-shaped prefabricated piles is high, and the prestress can be adjusted according to the field are brought into full play, the purposes of shortening of the construction period and reducing the project manufacturing cost are achieved, accordingly, the usage amount of concrete and steel can be reduced, and the safety requirement can be met.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a support structure and construction of a cement-soil wall interpolation stiffness-adjustable I-shaped prefabricated pile suitable for deep foundation pit support treatment in construction engineering, embankment engineering, road engineering, and subway engineering method. Background technique [0002] The construction of the cement-soil wall is to use a machine with a chain saw tool box, insert the tool box vertically into the ground, and then move horizontally and horizontally. Pour in cement slurry to form a channel-type cement-soil mixing wall of equal thickness. Its main features are continuous wall formation, flat surface, consistent thickness, and good wall uniformity. It is used in foundation reinforcement and anti-seepage treatment of various underground projects. [0003] The foundation pit project is not only faced with anti-seepage and water-proof, but also with ex...

AI Technical Summary

Problems solved by technology

This kind of canal-type cement-soil wall inserting rigidity adjustable I-shaped prefabricated pile support structure can not only solve the problem of insufficient length of traditional water-stop piles, but also solve the problem of insufficient support stiffness that cannot be adjusted, excessive deformation of the foundation pit or cement-soil The shear strength cannot meet the requirements, and it has the advantages of convenient construction, low cost, reliable pile quality, and no impact of soil extrusion.

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