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Field tests on behavior of pre-bored grouted planted pile and bored pile embedded in deep soft clay
Soils and Foundations ( IF 3.7 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.sandf.2020.03.013
Jia-jin Zhou , Jian-lin Yu , Xiao-nan Gong , Tian-long Yan

Abstract This paper presents a field study on the compressive bearing capacity of pre-bored grouted planted (PGP) pile and bored pile embedded in deep soft clay. The test site consisted of many concrete square piles which were used for the foundation of the old structures. The PGP pile and bored pile were considered as the two suitable pile types in this test site. The test results show that: the compressive bearing capacity of 900 mm PGP pile with 1200 mm enlarged base is identical to the compressive bearing capacity of 1000 mm bored pile, and the ultimate unit skin friction of PGP pile is about 1.28 times the ultimate unit skin friction of bored pile. Based on the comparison between the PGP pile and bored pile, the PGP pile can be considered as a type of resource conservation and eco-friendly pile foundation.

中文翻译:

预钻孔灌浆植桩与深软土埋入钻孔桩性能现场试验

摘要 本文对预钻孔灌浆植桩(PGP)和深软粘土埋入钻孔桩的抗压承载力进行了现场研究。试验场地由许多混凝土方桩组成,用于旧结构的基础。PGP桩和钻孔桩被认为是本试验场地的两种合适的桩型。试验结果表明:900 mm PGP桩基加1200 mm的抗压承载力与1000 mm钻孔桩的抗压承载力相同,PGP桩的极限单位摩阻力约为极限单位蒙皮​​的1.28倍钻孔桩的摩擦力。根据PGP桩和钻孔桩的比较,PGP桩可以被认为是一种资源节约型和生态友好型桩基。
更新日期:2020-04-01
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