Exploration and practice of post-pressure grouting construction method for extra-long piles in complex strata
In the complex geological environment,the construction of super-long piles is difficult and costly.Post grouting technology can greatly improve the bearing capacity of pile end and the friction resistance between pile and soil by instal-ling grouting pipe in advance during the construction of cast-in-place pile.Taking a project in Nanshan,Shenzhen,Guangdong as an example,the post grouting construction technology of uplift pile under complex geological conditions is discussed and the engineering practice is carried out.The test results show that the bearing capacity of pile foundation is greatly improved after adopting post grouting technology,and the design requirements are met under limited pile length.
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维普
