Open AccessAnalysis of construction technology and technical advantages of a kind of environmental homogeneous plastic pile
Author(s) -
Feng Jiao,
Qiu Chengchun,
Da Yao,
Jiaxing Weng,
Guangyu Xu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/3/032009
Subject(s) - pile , homogeneous , geotechnical engineering , cement , mixing (physics) , standard penetration test , penetration (warfare) , penetration depth , soil cement , environmental science , engineering , materials science , composite material , mathematics , physics , optics , quantum mechanics , operations research , liquefaction , combinatorics
Environmental Homogeneous Plastic (EHP) Pile is an improved cement-soil mixing pile with controllable and adjustable physical and mechanical properties. It is formed by completely replacing and filling while forming holes, so as to solve the disadvantages of traditional cement-soil mixing piles, such as insufficient mixing, uneven pile body and low pile strength. The construction technology of EHP piles was introduced and field standard penetration tests were carried out on EHP piles with different cement contents. It is found that the number of blows required to penetrate a 30cm depth increases with the increase of cement content at the same pile depth. At the same cement content, the number of blows of the EHP pile is greater than that of the traditional cement-soil mixing pile. The change in the number of blows along the pile depth of the EHP pile is also much smaller. Finally, the technical advantages of EHP piles are summarized: uniform and integrated pile body, quality-assured admixture, controllable pile material, and environmental protection.