Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pile end post-grouting device, grouting method and construction method of CFG pile
The invention provides a pile end post-grouting device, grouting method and construction method of a CFG pile. The pile end post-grouting device comprises a grouting pipe column inserted in a pile body of the CFG pile, a grouting hole is formed in the end of the grouting pipe column, the grouting pipe column comprises a grouting pipe and a grouting pipe tail joint, the grouting pipe tail joint is arranged corresponding to the grouting hole, and the grouting pipe tail joint can plug the grouting hole according to the pipe pressure in the grouting pipe column. According to the technical scheme, when the current pipe pressure of the grouting pipe column is smaller than or equal to the preset pipe pressure, the grouting pipe tail joint can block the grouting hole. In this way, the situation that cement paste outside the grouting pipe column flows back into the grouting pipe column from the grouting hole is reduced, the possibility that the cement paste in the grouting pipe collapses the hole is also reduced, and therefore the grouting effect of the grouting device is ensured.
本发明提供了一种用于CFG桩的桩端后注浆装置、注浆方法和CFG桩的施工方法，桩端后注浆装置包括插设在CFG桩的桩体内的注浆管柱，注浆管柱端头上开设有注浆孔，注浆管柱包括注浆管、注浆管尾节，注浆管尾节与注浆孔对应设置，注浆管尾节能够根据注浆管柱内的管压对注浆孔进行封堵。基于本发明的技术方案，当注浆管柱的当前管压小于等于预设管压时，注浆管尾节能够封堵注浆孔。这样减少了注浆管柱外部的水泥浆从注浆孔回流入注浆管柱内，也减少了注浆管内水泥浆塌孔的可能性，从而确保注浆装置的注浆效果。
Pile end post-grouting device, grouting method and construction method of CFG pile
The invention provides a pile end post-grouting device, grouting method and construction method of a CFG pile. The pile end post-grouting device comprises a grouting pipe column inserted in a pile body of the CFG pile, a grouting hole is formed in the end of the grouting pipe column, the grouting pipe column comprises a grouting pipe and a grouting pipe tail joint, the grouting pipe tail joint is arranged corresponding to the grouting hole, and the grouting pipe tail joint can plug the grouting hole according to the pipe pressure in the grouting pipe column. According to the technical scheme, when the current pipe pressure of the grouting pipe column is smaller than or equal to the preset pipe pressure, the grouting pipe tail joint can block the grouting hole. In this way, the situation that cement paste outside the grouting pipe column flows back into the grouting pipe column from the grouting hole is reduced, the possibility that the cement paste in the grouting pipe collapses the hole is also reduced, and therefore the grouting effect of the grouting device is ensured.
本发明提供了一种用于CFG桩的桩端后注浆装置、注浆方法和CFG桩的施工方法，桩端后注浆装置包括插设在CFG桩的桩体内的注浆管柱，注浆管柱端头上开设有注浆孔，注浆管柱包括注浆管、注浆管尾节，注浆管尾节与注浆孔对应设置，注浆管尾节能够根据注浆管柱内的管压对注浆孔进行封堵。基于本发明的技术方案，当注浆管柱的当前管压小于等于预设管压时，注浆管尾节能够封堵注浆孔。这样减少了注浆管柱外部的水泥浆从注浆孔回流入注浆管柱内，也减少了注浆管内水泥浆塌孔的可能性，从而确保注浆装置的注浆效果。
Pile end post-grouting device, grouting method and construction method of CFG pile
用于CFG桩的桩端后注浆装置、注浆方法和施工方法
YE WEI (Autor:in) / LUO KAIHUAI (Autor:in) / YANG HONGCHENG (Autor:in) / PANG HAIFENG (Autor:in) / HUANG FEI (Autor:in) / WANG GUANGBO (Autor:in)
04.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
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Gründungen
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