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A platform for research: civil engineering, architecture and urbanism
Novel post-grouting PHC tubular pile for compact sandy soil
The novel post-grouting PHC pipe pile comprises a steel pile body protection cap, a novel post-grouting PHC pipe pile body and a pile end, the pile end of the post-grouting PHC pipe pile is connected with a lower end opening of the pile body, the pile body is manufactured through a pre-tensioning method pre-stress technology and a centrifugal forming method, and the pile end is connected with the lower end opening of the pile body. Vertical grouting pipes and pile side grouting devices are installed in the pile body in advance, the vertical grouting pipes penetrate through the whole pile body, and the two vertical grouting pipes are connected with the pile end grouting devices of the pile end part in a welded mode through flange connectors. The structure is simple, construction is easy and convenient, the bearing capacity of a pile foundation can be effectively improved, the problem that a traditional PHC pipe pile is limited by geological conditions and cannot be subjected to post-grouting reinforcement in hard and dense sandy soil is solved, the service life of the pile foundation can be effectively prolonged, and extremely high social and economic benefits are achieved.
本发明公开了一种用于密实砂质土的新型后注浆PHC管桩，包括钢质桩身保护帽、新型后注浆PHC管桩桩身及桩端三部分，后注浆PHC管桩桩端与桩身下部端口连接，桩身采用先张法预应力工艺和离心成型法制成，桩身内部预先安装有竖向注浆管及桩侧注浆器，竖向注浆管贯通整个桩身，两根竖向注浆管与桩端部分的桩端注浆装置通过法兰接头焊接连接；本发明结构简单，施工简便，可有效提高桩基承载能力，解决传统PHC管桩受地质条件限制，无法在坚硬的密实砂质土实施后注浆加固的问题，可以有效延长桩基使用寿命，具有极高的社会经济效益。
Novel post-grouting PHC tubular pile for compact sandy soil
The novel post-grouting PHC pipe pile comprises a steel pile body protection cap, a novel post-grouting PHC pipe pile body and a pile end, the pile end of the post-grouting PHC pipe pile is connected with a lower end opening of the pile body, the pile body is manufactured through a pre-tensioning method pre-stress technology and a centrifugal forming method, and the pile end is connected with the lower end opening of the pile body. Vertical grouting pipes and pile side grouting devices are installed in the pile body in advance, the vertical grouting pipes penetrate through the whole pile body, and the two vertical grouting pipes are connected with the pile end grouting devices of the pile end part in a welded mode through flange connectors. The structure is simple, construction is easy and convenient, the bearing capacity of a pile foundation can be effectively improved, the problem that a traditional PHC pipe pile is limited by geological conditions and cannot be subjected to post-grouting reinforcement in hard and dense sandy soil is solved, the service life of the pile foundation can be effectively prolonged, and extremely high social and economic benefits are achieved.
本发明公开了一种用于密实砂质土的新型后注浆PHC管桩，包括钢质桩身保护帽、新型后注浆PHC管桩桩身及桩端三部分，后注浆PHC管桩桩端与桩身下部端口连接，桩身采用先张法预应力工艺和离心成型法制成，桩身内部预先安装有竖向注浆管及桩侧注浆器，竖向注浆管贯通整个桩身，两根竖向注浆管与桩端部分的桩端注浆装置通过法兰接头焊接连接；本发明结构简单，施工简便，可有效提高桩基承载能力，解决传统PHC管桩受地质条件限制，无法在坚硬的密实砂质土实施后注浆加固的问题，可以有效延长桩基使用寿命，具有极高的社会经济效益。
Novel post-grouting PHC tubular pile for compact sandy soil
一种用于密实砂质土的新型后注浆PHC管桩
WANG WEIGUO (author) / YANG XIAOHUA (author) / HU TAO (author) / WAN ZHIHUI (author) / WEI JIABEI (author) / DAI GUOLIANG (author)
2022-08-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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