A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pile end combined compaction grouting construction method for prefabricated hollow pile
The invention relates to a pile end combined compaction grouting construction method for a prefabricated hollow pile. The pile end combined compaction grouting construction method comprises the following construction steps that S1, an assembled pile end compaction grouting device is installed on a bottom end plate of a prefabricated pile with an inner hole at the tail section; s2, the pile body and the pipelines are connected correspondingly, and according to the requirements of site construction, different pile sinking modes are adopted for pile forming; s3, after the pile body is maintained for 1-3 days, a pile end compaction grouting device is controlled to strongly compact and compact a soil body at the end of the foundation pile, and a pile bottom compaction area is formed; s4, the high-pressure grouting device conducts high-pressure grouting on the split space and the interior of the pile end compaction grouting device, grout returns upwards along with the side wall of the precast pile, and a grouting reinforcement area is formed; the foundation pile end bearing capacity is improved, and the construction cost is reduced.
本发明涉及一种用于预制空心桩的桩端联合挤密注浆施工方法，包括如下施工步骤：S1、将组装好的桩端挤密注浆装置安装在末节并带有内孔的预制桩的底部端板上；S2、将桩体和各管路分别连接，并根据现场施工的要求，采用不同的沉桩方式进行成桩；S3、待桩身养护1～3天后，通过控制桩端挤密注浆装置将基桩端部的土体强力压实挤密，形成桩底挤密区域；S4、高压注浆装置向劈裂空间及桩端挤密注浆装置内部进行高压注浆，且浆液随预制桩侧壁上返，并形成注浆加固区域；本发明旨在提高基桩端承力，降低施工成本。
Pile end combined compaction grouting construction method for prefabricated hollow pile
The invention relates to a pile end combined compaction grouting construction method for a prefabricated hollow pile. The pile end combined compaction grouting construction method comprises the following construction steps that S1, an assembled pile end compaction grouting device is installed on a bottom end plate of a prefabricated pile with an inner hole at the tail section; s2, the pile body and the pipelines are connected correspondingly, and according to the requirements of site construction, different pile sinking modes are adopted for pile forming; s3, after the pile body is maintained for 1-3 days, a pile end compaction grouting device is controlled to strongly compact and compact a soil body at the end of the foundation pile, and a pile bottom compaction area is formed; s4, the high-pressure grouting device conducts high-pressure grouting on the split space and the interior of the pile end compaction grouting device, grout returns upwards along with the side wall of the precast pile, and a grouting reinforcement area is formed; the foundation pile end bearing capacity is improved, and the construction cost is reduced.
本发明涉及一种用于预制空心桩的桩端联合挤密注浆施工方法，包括如下施工步骤：S1、将组装好的桩端挤密注浆装置安装在末节并带有内孔的预制桩的底部端板上；S2、将桩体和各管路分别连接，并根据现场施工的要求，采用不同的沉桩方式进行成桩；S3、待桩身养护1～3天后，通过控制桩端挤密注浆装置将基桩端部的土体强力压实挤密，形成桩底挤密区域；S4、高压注浆装置向劈裂空间及桩端挤密注浆装置内部进行高压注浆，且浆液随预制桩侧壁上返，并形成注浆加固区域；本发明旨在提高基桩端承力，降低施工成本。
Pile end combined compaction grouting construction method for prefabricated hollow pile
一种用于预制空心桩的桩端联合挤密注浆施工方法
LIU ZHONG (author) / YANG NINGYE (author) / LAN WEI (author) / ZHANG CHUFU (author)
2023-03-28
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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