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Post-grouting precast pile implanted into pile end in stirring manner and construction method of post-grouting precast pile
The invention discloses a construction method for stirring and implanting a post-grouting precast pile at a pile end, which comprises the following steps: stirring a soil layer in a pile column area to a designed elevation of a pile bottom, and adding a curing agent into the stirred soil layer in the pile column area in the stirring process to form a stirring pile in the pile column area; a precast pile provided with a pile end post-grouting device is planted into the stirring pile, and the radial size of the precast pile is smaller than that of the stirring pile; the pile end post-grouting device is unplugged with clear water through a grouting pipe in the precast pile, and a subsequent grouting pipeline is formed; after the precast pile is implanted into the mixing pile, maintenance is conducted for a preset time; and through the pile end post-grouting device, post-grouting is conducted on the pile end so as to reinforce pile end soil. The invention further discloses the post-grouting precast pile formed by the method and used for stirring and implanting the pile end.
本申请公开了一种搅拌植入桩端后注浆预制桩的施工方法，该方法包括：搅拌桩柱区土层至桩底设计标高，其中在搅拌过程中向被搅拌的所述桩柱区土层中加入固化剂以在所述桩柱区形成搅拌桩；将安装有桩端后注浆装置的预制桩植入所述搅拌桩中，其中所述预制桩的径向尺寸小于所述搅拌桩的径向尺寸；通过所述预制桩内的注浆管对桩端后注浆装置进行清水开塞，形成后续注浆管路；在将所述预制桩植入所述搅拌桩之后养护预定的时间；以及通过所述桩端后注浆装置，对所述桩端进行后注浆以加固桩端土。本申请还公开了该方法形成的搅拌植入桩端后注浆预制桩。
Post-grouting precast pile implanted into pile end in stirring manner and construction method of post-grouting precast pile
The invention discloses a construction method for stirring and implanting a post-grouting precast pile at a pile end, which comprises the following steps: stirring a soil layer in a pile column area to a designed elevation of a pile bottom, and adding a curing agent into the stirred soil layer in the pile column area in the stirring process to form a stirring pile in the pile column area; a precast pile provided with a pile end post-grouting device is planted into the stirring pile, and the radial size of the precast pile is smaller than that of the stirring pile; the pile end post-grouting device is unplugged with clear water through a grouting pipe in the precast pile, and a subsequent grouting pipeline is formed; after the precast pile is implanted into the mixing pile, maintenance is conducted for a preset time; and through the pile end post-grouting device, post-grouting is conducted on the pile end so as to reinforce pile end soil. The invention further discloses the post-grouting precast pile formed by the method and used for stirring and implanting the pile end.
本申请公开了一种搅拌植入桩端后注浆预制桩的施工方法，该方法包括：搅拌桩柱区土层至桩底设计标高，其中在搅拌过程中向被搅拌的所述桩柱区土层中加入固化剂以在所述桩柱区形成搅拌桩；将安装有桩端后注浆装置的预制桩植入所述搅拌桩中，其中所述预制桩的径向尺寸小于所述搅拌桩的径向尺寸；通过所述预制桩内的注浆管对桩端后注浆装置进行清水开塞，形成后续注浆管路；在将所述预制桩植入所述搅拌桩之后养护预定的时间；以及通过所述桩端后注浆装置，对所述桩端进行后注浆以加固桩端土。本申请还公开了该方法形成的搅拌植入桩端后注浆预制桩。
Post-grouting precast pile implanted into pile end in stirring manner and construction method of post-grouting precast pile
搅拌植入桩端后注浆预制桩及其施工方法
HU YUYIN (author) / CHEN JIANLAN (author)
2022-12-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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