A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Heat-insulating and force-holding pile for road in permafrost region, composite foundation and implementation method of composite foundation
The invention provides a permafrost region road heat insulation-force holding pile, a composite foundation and an implementation method thereof.The heat insulation-force holding pile comprises a pipe pile body, a freezing pipe is arranged in the pipe pile body, one end of the freezing pipe is communicated with a liquid outlet pipe of a liquid nitrogen storage tank, the other end of the freezing pipe is communicated with an air inlet pipe of the liquid nitrogen storage tank, and the air inlet pipe is communicated with an air outlet pipe of the liquid nitrogen storage tank. The pipe pile body is filled with a heat-conducting medium at the periphery of the freezing pipe; the pipe pile body comprises an upper section pipe column, a lower section pipe column and a heat insulation pipe column installed between the upper section pipe column and the lower section pipe column, the top of the upper section pipe column is sealed through a cover plate, and the liquid outlet pipe and the air inlet pipe penetrate through the cover plate and are communicated with the freezing pipe located at the bottom of the lower section pipe column. The permafrost around the pile end can be accurately frozen, the bearing capacity of the pile end is kept, and the pile body can adapt to seasonal changes of a permafrost active layer.
本发明提供了一种多年冻土区道路隔热‑持力桩、复合地基及其实施方法，该隔热‑持力桩包括管桩本体，所述管桩本体内设有冷冻管，所述冷冻管的一端与液氮储液罐的出液管连通，所述冷冻管的另一端与液氮储液罐的进气管连通，所述管桩本体在冷冻管的外周填充导热介质；所述管桩本体包括上节管柱、下节管柱以及安装在所述上节管柱和下节管柱之间的隔热管柱，所述上节管柱的顶部通过盖板密封，所述出液管和进气管穿过所述盖板并与位于所述下节管柱底部的所述冷冻管连通。本发明能够精确冻结桩端周围多年冻土，保持桩端承载力，使桩体能适应冻土活动层的季节变化。
Heat-insulating and force-holding pile for road in permafrost region, composite foundation and implementation method of composite foundation
The invention provides a permafrost region road heat insulation-force holding pile, a composite foundation and an implementation method thereof.The heat insulation-force holding pile comprises a pipe pile body, a freezing pipe is arranged in the pipe pile body, one end of the freezing pipe is communicated with a liquid outlet pipe of a liquid nitrogen storage tank, the other end of the freezing pipe is communicated with an air inlet pipe of the liquid nitrogen storage tank, and the air inlet pipe is communicated with an air outlet pipe of the liquid nitrogen storage tank. The pipe pile body is filled with a heat-conducting medium at the periphery of the freezing pipe; the pipe pile body comprises an upper section pipe column, a lower section pipe column and a heat insulation pipe column installed between the upper section pipe column and the lower section pipe column, the top of the upper section pipe column is sealed through a cover plate, and the liquid outlet pipe and the air inlet pipe penetrate through the cover plate and are communicated with the freezing pipe located at the bottom of the lower section pipe column. The permafrost around the pile end can be accurately frozen, the bearing capacity of the pile end is kept, and the pile body can adapt to seasonal changes of a permafrost active layer.
本发明提供了一种多年冻土区道路隔热‑持力桩、复合地基及其实施方法，该隔热‑持力桩包括管桩本体，所述管桩本体内设有冷冻管，所述冷冻管的一端与液氮储液罐的出液管连通，所述冷冻管的另一端与液氮储液罐的进气管连通，所述管桩本体在冷冻管的外周填充导热介质；所述管桩本体包括上节管柱、下节管柱以及安装在所述上节管柱和下节管柱之间的隔热管柱，所述上节管柱的顶部通过盖板密封，所述出液管和进气管穿过所述盖板并与位于所述下节管柱底部的所述冷冻管连通。本发明能够精确冻结桩端周围多年冻土，保持桩端承载力，使桩体能适应冻土活动层的季节变化。
Heat-insulating and force-holding pile for road in permafrost region, composite foundation and implementation method of composite foundation
多年冻土区道路隔热-持力桩、复合地基及其实施方法
ZHANG JUNHUI (author) / GAO FENG (author) / ZENG XIANZHANG (author) / CHEN ZHIDE (author) / WANG CHAO (author) / HU ZHENGBO (author)
2024-02-20
Patent
Electronic Resource
Chinese
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