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A platform for research: civil engineering, architecture and urbanism
Prefabricated energy pile suitable for seasonal frozen earth region and construction method of prefabricated energy pile
The invention discloses a prefabricated energy pile suitable for seasonal frozen earth areas and a construction method thereof. An upper pile section is poured by adopting a mixture of fly ash and concrete, and a lower pile section is poured by adopting a mixture of graphene and concrete. And the lower part of the heat exchange pipe adopts a common steel pipe. The heat exchange pipe extends out of the pile body and is connected with the heat collector. The construction method comprises the steps that the upper pile section and the lower pile section are prefabricated; the lower pile section is firstly sunk to the height facilitating welding, then the upper pile section is connected with the lower pile section, and the pile sections are welded; welding and pile sinking are completed, a heat exchange pipe is connected with a heat collector, a heat conduction loop is formed, and the prefabricated energy pile suitable for the seasonal frozen earth area is formed; the upper pile section and the heat exchange pipe can reduce heat dissipation, meanwhile prevent freezing layer soil from being melted and improve the pile foundation bearing capacity, and the lower pile section can improve the heat exchange efficiency and reduce the influence that an upper freezing layer cannot exchange heat.
本发明公开了一种适用于季节性冻土地区的预制能量桩及其施工方法，上部桩节采用粉煤灰和混凝土的混合物浇筑，下部桩节采用石墨烯和混凝土的混合物浇筑。换热管上部采用保温管道，下部采用普通钢管。换热管伸出桩体与集热器相连。所述施工方法为：上下桩节为预制；下部桩节先沉桩至方便焊接的高度，再将上部桩节与下部桩节连接，对桩节施焊；完成施焊和沉桩，将换热管与集热器相连，形成导热回路，即形成适用于季节性冻土地区的预制能量桩；本发明的上部桩节和换热管可降低热量耗散，同时防止冻结层土体融化，提高桩基承载力，下部桩节可提高换热效率，降低上部冻结层无法换热的影响。
Prefabricated energy pile suitable for seasonal frozen earth region and construction method of prefabricated energy pile
The invention discloses a prefabricated energy pile suitable for seasonal frozen earth areas and a construction method thereof. An upper pile section is poured by adopting a mixture of fly ash and concrete, and a lower pile section is poured by adopting a mixture of graphene and concrete. And the lower part of the heat exchange pipe adopts a common steel pipe. The heat exchange pipe extends out of the pile body and is connected with the heat collector. The construction method comprises the steps that the upper pile section and the lower pile section are prefabricated; the lower pile section is firstly sunk to the height facilitating welding, then the upper pile section is connected with the lower pile section, and the pile sections are welded; welding and pile sinking are completed, a heat exchange pipe is connected with a heat collector, a heat conduction loop is formed, and the prefabricated energy pile suitable for the seasonal frozen earth area is formed; the upper pile section and the heat exchange pipe can reduce heat dissipation, meanwhile prevent freezing layer soil from being melted and improve the pile foundation bearing capacity, and the lower pile section can improve the heat exchange efficiency and reduce the influence that an upper freezing layer cannot exchange heat.
本发明公开了一种适用于季节性冻土地区的预制能量桩及其施工方法，上部桩节采用粉煤灰和混凝土的混合物浇筑，下部桩节采用石墨烯和混凝土的混合物浇筑。换热管上部采用保温管道，下部采用普通钢管。换热管伸出桩体与集热器相连。所述施工方法为：上下桩节为预制；下部桩节先沉桩至方便焊接的高度，再将上部桩节与下部桩节连接，对桩节施焊；完成施焊和沉桩，将换热管与集热器相连，形成导热回路，即形成适用于季节性冻土地区的预制能量桩；本发明的上部桩节和换热管可降低热量耗散，同时防止冻结层土体融化，提高桩基承载力，下部桩节可提高换热效率，降低上部冻结层无法换热的影响。
Prefabricated energy pile suitable for seasonal frozen earth region and construction method of prefabricated energy pile
一种适用于季节性冻土地区的预制能量桩及其施工方法
WANG CHENGLONG (author) / PENG CHEN (author) / LIU HANLONG (author) / DING XUANMING (author) / ZHOU HANG (author)
2022-10-28
Patent
Electronic Resource
Chinese
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