Comprehensive treatment and reinforcement method for collapse of stratum around offshore deepwater inclined pile

Abstract

The invention discloses a comprehensive treatment and reinforcement method for collapse of a stratum around an offshore deepwater inclined pile. According to the comprehensive treatment and reinforcement method for collapse of the stratum around the offshore deepwater inclined pile, multiple means such as inclined hole grouting, inclined hole jet grouting and pile mixing are adopted, an integrated new composite foundation is formed to reinforce soil around the pile, the treatment effect and quality of the collapse of the stratum around the offshore deepwater inclined pile are remarkable, the follow-up pile foundation construction is effectively ensured to be safely and smoothly carried out, the construction period is greatly shortened, the economic loss is greatly reduced, the bearing capacity and stability of the offshore deepwater inclined pile foundation are effectively guaranteed, and potential safety hazards are completely eradicated.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to a method for comprehensively treating and strengthening stratum collapse around deep-water inclined piles on the sea. Background technique [0002] Pile cap foundation is a form of foundation structure, a deep foundation composed of piles and pile caps (referred to as caps) connected to the pile top, referred to as pile foundation. If the pile body is completely buried in the soil and the bottom surface of the cap is in contact with the soil, it is called a low pile cap foundation; if the upper part of the pile body is exposed to the ground and the bottom of the cap is above the ground, it is called a high pile cap foundation. High pile cap foundations have been widely used in offshore wind power, long-span bridges, wharves and offshore oil platforms. [0003] Most offshore wind power pile foundations use high-performance marine concrete caps and steel pipe pile...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects that the existing offshore deepwater inclined piles have poor ground subsidence control effect and cannot meet the follow-up construction and safety requirements, and provide a comprehensive treatment and reinforcement method for the surrounding soil collapse of offshore deepwater inclined piles. In the subsidence area, the grouting of the inclined holes inside the piles, the inclined piles and the mixing piles are carried out comprehensively, so that the outside of the piles and the surrounding soil can be effectively and fully consolidated into a whole, so as to ensure the safe and smooth subsequent construction of the pile foundation and ensure The bearing capacity and stability of the pile foundation meet the design requirements

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