Soil-cement pile with core and diameter enlarged extension section

Abstract

The cement soil pile expanding pile includes cement soil pile body and axial core rod and features diameter expanding sections with increased cross section area in pile end and / or pile body. The expanded sections may be supported or suspended inside the soil layer with best soil quality to increase pile end resistance and side friction resistance, raise the pile bearing capacity, avoid pile deposition, control deformation of foundation and ensure the safety of building. The present invention has wide application range.

Description

technical field [0001] The invention relates to a cement-soil cored pile, which belongs to the technical field of architectural design and construction. Background technique [0002] The quality of foundation geological conditions is directly related to the reliability and safety of ground buildings. Therefore, how to effectively use various types of foundation piles driven into the foundation to adapt to different geological conditions in order to improve and improve the bearing capacity of foundation piles Ensuring the safety of buildings is an important issue that needs to be solved urgently in the construction industry for a long time. At present, low-cost, high-quality cored or reinforced cement-soil composite piles are commonly used, although they overcome the high building cost caused by the high price of prefabricated piles, and the low strength of deep-mixed piles. However, it is not enough to be crushed, but it cannot change the foothold or support point of the pi...

AI Technical Summary

Problems solved by technology

At present, low-cost, high-quality cored or reinforced cement-soil composite piles are widely used, although they overcome the high building cost caused by the high price of prefabricated piles, and the easy deformation in the ground caused by the low strength of deep mixing piles. However, it is not enough to be crushed, but it cannot change the foothold or support point of the pile with the change of geological conditions, so that the scope of engineering application of cored or stiffened cement-soil composite piles is greatly limited, especially in complex geological conditions. When the thickness of the garden gravel layer (good soil layer) is insufficient or the garden gravel layer is discontinuously distributed, it is difficult to ensure or improve the bearing capacity of a single pile, and it is difficult to ensure that the pile will not settle

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