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A platform for research: civil engineering, architecture and urbanism
Construction process method of PHC pipe pile synergetic anti-freezing and anti-pulling device
The invention belongs to the technical field of frozen soil building construction, and particularly relates to a construction technological method of a PHC pipe pile synergistic anti-freezing and anti-pulling device, the PHC pipe pile synergistic anti-freezing and anti-pulling device comprises a sliding system, a steel inner sleeve pile body and a steel anti-pulling spiral framework, and the sliding system comprises hydrophobic medium-coarse sand, a steel outer sleeve and a rubber sealing ring; the construction process comprises the following steps: 1, leveling a site, and performing static pile pressing construction on the PHC pipe pile; 2, holes of the PHC pipe pile are cleaned; 3, the anti-pulling spiral framework is pressed and twisted; 4, fine aggregate concrete is poured into a pile hole of the PHC pipe pile; and 5, pile periphery excavation is conducted, a sliding system is installed, and finally sandy soil backfilling and tamping are conducted. According to the technology, the steel anti-pulling spiral framework and the sliding structure on the lower portion of the pile body are used for consuming and resisting freezing pulling force to a certain degree, and the purpose of preventing freezing pulling of the pile body is achieved. And extra energy such as electric energy and heat energy does not need to be consumed to slow down soil frost heaving, the anti-freezing requirement of the PHC pipe pile in the cold region in winter is met, and the method can be popularized in the cold region in winter.
本发明属于冻土建筑施工技术领域，具体涉及一种PHC管桩协同抗冻拔装置的施工工艺方法，所述PHC管桩协同抗冻拔装置包括滑移系统、钢制内套筒桩体和钢制抗拔螺旋骨架，滑移系统包括疏水性中粗沙、钢制外套筒、橡胶密封圈；施工工艺为1、整平场地，PHC管桩静力压桩施工；2、PHC管桩孔洞清洗3、压扭抗拔螺旋骨架；4、细石混凝土浇注PHC管桩桩孔；5、桩周开挖，滑移系统安装，最后砂土回填并夯实。工艺利用桩身主体下部的钢制抗拔螺旋骨架以及滑移结构，对冻拔力进行一定的消耗以及抵抗，达成防止桩体发生冻拔的目的。不需要消耗电能热能等额外的能量来减缓土壤冻胀，满足冬季寒区PHC管桩抗冻拔的要求，可在冬季寒区推广。
Construction process method of PHC pipe pile synergetic anti-freezing and anti-pulling device
The invention belongs to the technical field of frozen soil building construction, and particularly relates to a construction technological method of a PHC pipe pile synergistic anti-freezing and anti-pulling device, the PHC pipe pile synergistic anti-freezing and anti-pulling device comprises a sliding system, a steel inner sleeve pile body and a steel anti-pulling spiral framework, and the sliding system comprises hydrophobic medium-coarse sand, a steel outer sleeve and a rubber sealing ring; the construction process comprises the following steps: 1, leveling a site, and performing static pile pressing construction on the PHC pipe pile; 2, holes of the PHC pipe pile are cleaned; 3, the anti-pulling spiral framework is pressed and twisted; 4, fine aggregate concrete is poured into a pile hole of the PHC pipe pile; and 5, pile periphery excavation is conducted, a sliding system is installed, and finally sandy soil backfilling and tamping are conducted. According to the technology, the steel anti-pulling spiral framework and the sliding structure on the lower portion of the pile body are used for consuming and resisting freezing pulling force to a certain degree, and the purpose of preventing freezing pulling of the pile body is achieved. And extra energy such as electric energy and heat energy does not need to be consumed to slow down soil frost heaving, the anti-freezing requirement of the PHC pipe pile in the cold region in winter is met, and the method can be popularized in the cold region in winter.
本发明属于冻土建筑施工技术领域，具体涉及一种PHC管桩协同抗冻拔装置的施工工艺方法，所述PHC管桩协同抗冻拔装置包括滑移系统、钢制内套筒桩体和钢制抗拔螺旋骨架，滑移系统包括疏水性中粗沙、钢制外套筒、橡胶密封圈；施工工艺为1、整平场地，PHC管桩静力压桩施工；2、PHC管桩孔洞清洗3、压扭抗拔螺旋骨架；4、细石混凝土浇注PHC管桩桩孔；5、桩周开挖，滑移系统安装，最后砂土回填并夯实。工艺利用桩身主体下部的钢制抗拔螺旋骨架以及滑移结构，对冻拔力进行一定的消耗以及抵抗，达成防止桩体发生冻拔的目的。不需要消耗电能热能等额外的能量来减缓土壤冻胀，满足冬季寒区PHC管桩抗冻拔的要求，可在冬季寒区推广。
Construction process method of PHC pipe pile synergetic anti-freezing and anti-pulling device
一种PHC管桩协同抗冻拔装置的施工工艺方法
FU HAIPENG (author) / HU FANGWEN (author) / FU SHIBO (author) / LI DONG (author) / QI ZITONG (author) / WANG ZHONGHUA (author) / WANG LILI (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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