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Seaborne implantable rock-socketed steel pipe pile bottom sealing construction method
A bottom sealing construction method for an offshore implantable rock-socketed steel pipe pile is characterized in that a steel casing, an assembled implantable core pile with pile bottom precast concrete and a high-performance grouting material are matched, after the steel pipe pile is manufactured, concrete is poured in a factory, the core pile is manufactured, and a plurality of distances are reserved from the bottom of the concrete to the section of the bottom of the steel pipe pile. An uneven surface in a rock-socketed formed hole can be conveniently implanted, and filling is carried out through follow-up pressure grouting high-performance grouting materials. According to the method, pile bottom concrete implanted into a core pile is prefabricated in a steel pipe pile factory, then a high-performance grouting material is used for filling and blocking a gap between the core pile and bed rock, the offshore concrete pouring construction process is omitted, the construction efficiency is greatly improved, and the construction window period is shortened. Meanwhile, the construction cost is saved, and the method has important significance on efficiency improvement and cost saving of offshore wind power socketed pile foundation construction.
一种海上植入式嵌岩钢管桩封底施工方法，该方法采用钢护筒、带有桩底预制混凝土的装配式植入芯桩、高性能灌浆材料配合，在钢管桩制作完成后，厂内浇筑混凝土，制作芯桩，混凝土底部至钢管桩底部截面空出若干距离，方便植入嵌岩成孔内不平整的表面，并以后续压力灌浆高性能灌浆材料进行填充。该方法将植入芯桩内的桩底混凝土改为在钢管桩厂内预制，再利用高性能灌浆材料对芯桩与基岩之间间隙进行填充封堵，省去了海上混凝土浇筑施工工艺，大大提升了施工工效，节约了施工窗口期；同时节约了施工成本，对海上风电嵌岩桩基础施工的效率提升和成本节约具有重要意义。
Seaborne implantable rock-socketed steel pipe pile bottom sealing construction method
A bottom sealing construction method for an offshore implantable rock-socketed steel pipe pile is characterized in that a steel casing, an assembled implantable core pile with pile bottom precast concrete and a high-performance grouting material are matched, after the steel pipe pile is manufactured, concrete is poured in a factory, the core pile is manufactured, and a plurality of distances are reserved from the bottom of the concrete to the section of the bottom of the steel pipe pile. An uneven surface in a rock-socketed formed hole can be conveniently implanted, and filling is carried out through follow-up pressure grouting high-performance grouting materials. According to the method, pile bottom concrete implanted into a core pile is prefabricated in a steel pipe pile factory, then a high-performance grouting material is used for filling and blocking a gap between the core pile and bed rock, the offshore concrete pouring construction process is omitted, the construction efficiency is greatly improved, and the construction window period is shortened. Meanwhile, the construction cost is saved, and the method has important significance on efficiency improvement and cost saving of offshore wind power socketed pile foundation construction.
一种海上植入式嵌岩钢管桩封底施工方法，该方法采用钢护筒、带有桩底预制混凝土的装配式植入芯桩、高性能灌浆材料配合，在钢管桩制作完成后，厂内浇筑混凝土，制作芯桩，混凝土底部至钢管桩底部截面空出若干距离，方便植入嵌岩成孔内不平整的表面，并以后续压力灌浆高性能灌浆材料进行填充。该方法将植入芯桩内的桩底混凝土改为在钢管桩厂内预制，再利用高性能灌浆材料对芯桩与基岩之间间隙进行填充封堵，省去了海上混凝土浇筑施工工艺，大大提升了施工工效，节约了施工窗口期；同时节约了施工成本，对海上风电嵌岩桩基础施工的效率提升和成本节约具有重要意义。
Seaborne implantable rock-socketed steel pipe pile bottom sealing construction method
一种海上植入式嵌岩钢管桩封底施工方法
PAN XIAOWEI (author) / ZHU GUOHU (author) / CUI CAN (author) / LIU DAHAI (author) / TAO TINGJUN (author) / KAN ZILONG (author) / WANG ZIQIU (author)
2021-09-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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