Pile foundation structure applied to soft soil foundation and coral sand foundation and construction method

• Main Authors: DU ZHUOXING, YANG HAOYU, LI XUANYU, XIE XIAOKANG, LIU JIE, SONG RUI, SHEN RUKANG, WANG YANSONG, ZHANG XINGPENG, CHEN ZIYUE, GUO JIANXIANG, LI GENG
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2021
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention provides a pile foundation structure applied to a soft soil foundation and a coral sand foundation and a construction method. the pile foundation structure comprises a hollow prefabricated multi-cast-in-place pile, the hollow prefabricated multi-cast-in-place pile adopts steel hollow prefabrication, a whole cement and a hollow prefabricated pipe are surrounded by a prefabricated pile foundation framework, the section of the pile is circular, the radius is R, a round bottom pouring hole with the radius of R/10 is reserved in the center of the section, and a round pipe and a side pouring hole with the diameter of R/20 are reserved at a certain position away from the edge of the section; the pile foundation structure further comprises a straight grouting pipe. According to the pile foundation, the cost can be reduced, operation is easy, experiments can be conveniently carried out, the number of the pile foundations is reduced, soft soil is fast made firm, the construction standard is met, settlemen