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A platform for research: civil engineering, architecture and urbanism
Construction method and construction device for post-grouting of precast pile
The invention provides a construction method and a construction device for post-grouting of a precast pile, and belongs to the technical field of precast pile grouting methods and devices. The construction method comprises the following steps of: sinking the precast pile which is pre-buried with a vertical grouting guide pipe and is welded with a grouting spray head on the vertical grouting guide pipe into a required elevation; after the precast pile is stabilized, namely does not float upwards and does not sink and displace, injecting water at high pressure through the vertical grouting guide pipe to dissolve and burst through a grouting spray head plug, and then opening a grouting channel and opening the plug with clear water; and after the plug is opened with the clear water, performing pile end grouting or pile side wall grouting according to the vertical grouting guide pipe pre-buried in the precast pile, or performing pile end and pile side combined grouting. The construction device comprises the grouting spray head, the precast pile and the vertical grouting guide pipe, wherein the bottom end of the precast pile is connected with a pile tip; the vertical grouting guide pipe is pre-buried in the precast pile; the grouting spray head is welded on the vertical grouting guide pipe; the grouting spray head plug is inserted into the grouting spray head before pile sinking.
本发明提供了一种预制桩后注浆的施工方法与施工装置，属于预制桩注浆方法及装置技术领域。施工方法，将预埋有竖直注浆导管且在竖直注浆导管上焊有注浆喷头的预制桩沉入所需标高；当预制桩已经稳定，即不再上浮不再下沉不位移后，通过竖直注浆导管高压注入水首先溶解和冲开注浆喷头塞，然后打开注浆通道并清水开塞，清水开塞后，根据预制桩预埋的竖直注浆导管进行桩端注浆或进行桩侧壁注浆，或进行桩端和桩侧联合注浆。施工装置，包括注浆喷头、预制桩和竖直注浆导管，预制桩的底端接有桩尖，预制桩内预埋有竖直注浆导管，竖直注浆导管上焊接有注浆喷头，沉桩前注浆喷头内插入注浆喷头塞。
Construction method and construction device for post-grouting of precast pile
The invention provides a construction method and a construction device for post-grouting of a precast pile, and belongs to the technical field of precast pile grouting methods and devices. The construction method comprises the following steps of: sinking the precast pile which is pre-buried with a vertical grouting guide pipe and is welded with a grouting spray head on the vertical grouting guide pipe into a required elevation; after the precast pile is stabilized, namely does not float upwards and does not sink and displace, injecting water at high pressure through the vertical grouting guide pipe to dissolve and burst through a grouting spray head plug, and then opening a grouting channel and opening the plug with clear water; and after the plug is opened with the clear water, performing pile end grouting or pile side wall grouting according to the vertical grouting guide pipe pre-buried in the precast pile, or performing pile end and pile side combined grouting. The construction device comprises the grouting spray head, the precast pile and the vertical grouting guide pipe, wherein the bottom end of the precast pile is connected with a pile tip; the vertical grouting guide pipe is pre-buried in the precast pile; the grouting spray head is welded on the vertical grouting guide pipe; the grouting spray head plug is inserted into the grouting spray head before pile sinking.
本发明提供了一种预制桩后注浆的施工方法与施工装置，属于预制桩注浆方法及装置技术领域。施工方法，将预埋有竖直注浆导管且在竖直注浆导管上焊有注浆喷头的预制桩沉入所需标高；当预制桩已经稳定，即不再上浮不再下沉不位移后，通过竖直注浆导管高压注入水首先溶解和冲开注浆喷头塞，然后打开注浆通道并清水开塞，清水开塞后，根据预制桩预埋的竖直注浆导管进行桩端注浆或进行桩侧壁注浆，或进行桩端和桩侧联合注浆。施工装置，包括注浆喷头、预制桩和竖直注浆导管，预制桩的底端接有桩尖，预制桩内预埋有竖直注浆导管，竖直注浆导管上焊接有注浆喷头，沉桩前注浆喷头内插入注浆喷头塞。
Construction method and construction device for post-grouting of precast pile
预制桩后注浆的施工方法与施工装置
ZHAI YUSI (author) / ZHU ZE (author) / ZHAI YUQIAO (author) / WANG JILIANG (author) / ZHAI YUFEI (author) / ZHAI YUHONG (author) / ZHAI XIANGYANG (author) / ZHAI XIANGBIN (author)
2021-05-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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