Post-construction stress deformation adjustable prefabricated pile and construction method thereof

Abstract

The invention discloses a post-construction stress deformation adjustable prefabricated pile and a construction method thereof. The adjustable prefabricated pile comprises a steel bar, a steel pipe, concrete and wireless sensors, wherein the steel pipe is used as a grouting pipe and also serves as a reinforcement of a pile body; wireless stress and strain sensors are arranged at two ends or the middle part of the pile body; and a flexible deformation bag is arranged at the bottom of the prefabricated pile and / or between the upper section and the lower section of a multi-section pile, and the bag body communicates with the grouting steel pipe. According to the adjustable prefabricated pile, long-term monitoring of post-construction pile body data is realized, the defect that the quality ofinvisible engineering is uneven is overcome, in addition, a key stress pile can be found in time after the non-expected settlement occurs; and rapid and low-cost grouting reinforcement is carried out,and safety and reliability are achieved.

Description

technical field [0001] The invention relates to a prefabricated pile and a construction method thereof. Background technique [0002] The existing prefabricated pile construction can only rely on specifications, experience and a small number of test piles to specify the depth of the pile body and the pile pressure / penetration of the construction. In the case of insufficient foundation bearing capacity, excessive settlement, and uneven settlement during or after the overall construction of the building, it is difficult to find out the cause because the pile body is buried in the soil, which is a concealed project. And other additional means to deal with, the process is loaded down with trivial details and the cost is high. Contents of the invention [0003] The purpose of the present invention is to provide a prefabricated pile and its construction method which can monitor the stress and deformation of the pile body after the construction is completed and quickly adjust th...

AI Technical Summary

Problems solved by technology

[0002] The existing prefabricated pile construction can only rely on specifications, experience and a small number of test piles to specify the depth of the pile body and the pile pressure / penetration of the construction. In the case of insufficient foundation bearing capacity, excessive settlement, and uneven settlement during or after the overall construction of the building, it is difficult to find out the cause because the pile body is buried in the soil, which is a concealed project. Additional means such as processing, the process is cumbersome and the cost is high

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