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A platform for research: civil engineering, architecture and urbanism
Cast-in-place pile construction method under complex geological conditions
The invention relates to the technical field of underwater building pile foundation construction, in particular to a cast-in-place pile construction method under complex geological conditions, which comprises the following steps: S1, building a construction platform; s2, pile position lofting is carried out; s3, leveling treatment is conducted on the shallow covering layer and the position with the oblique rock; s4, a guide hole is drilled in a rotary excavating mode, and a steel casing is embedded; s5, drilling to form a hole by the rotary drilling rig; s6, hole bottom treatment; s7, holes are cleaned, and a reinforcement cage is put down; s8, a guide pipe is put down, and concrete is poured; under the condition that a covering layer is shallow and inclined rocks exist, a percussion drill is adopted for leveling the rock surface, the construction efficiency is guaranteed, it is also guaranteed that a rotary drilling rig can be used subsequently for rapidly guiding holes into the rocks to embed the steel pile casing, it is guaranteed that the embedding position and perpendicularity of the pile casing meet the design requirements, slurry does not need to be prepared, the slurry preparation and recycling cost is saved, and the construction period is shortened. And pollution to the marine environment is avoided.
本发明涉及水下建筑桩基施工技术领域，尤其涉及一种复杂地质条件下灌注桩施工方法，包括：S1、搭设施工平台；S2、桩位放样；S3、对覆盖层较浅且有斜岩处进行平整处理；S4、旋挖钻引孔、埋设钢护筒；S5、旋挖钻钻进成孔；S6、孔底处理；S7、清孔并下放钢筋笼；S8、下放导管，浇筑混凝土；在覆盖层较浅且有斜岩的情况下采用冲击钻将岩面处理平整，既保证了施工效率又保证了后续使用旋挖钻可以快速引孔入岩埋设钢护筒，保证了护筒埋设位置和垂直度符合设计要求，不需要制备泥浆，节省泥浆制备和回收成本，避免了对海上环境污染。
Cast-in-place pile construction method under complex geological conditions
The invention relates to the technical field of underwater building pile foundation construction, in particular to a cast-in-place pile construction method under complex geological conditions, which comprises the following steps: S1, building a construction platform; s2, pile position lofting is carried out; s3, leveling treatment is conducted on the shallow covering layer and the position with the oblique rock; s4, a guide hole is drilled in a rotary excavating mode, and a steel casing is embedded; s5, drilling to form a hole by the rotary drilling rig; s6, hole bottom treatment; s7, holes are cleaned, and a reinforcement cage is put down; s8, a guide pipe is put down, and concrete is poured; under the condition that a covering layer is shallow and inclined rocks exist, a percussion drill is adopted for leveling the rock surface, the construction efficiency is guaranteed, it is also guaranteed that a rotary drilling rig can be used subsequently for rapidly guiding holes into the rocks to embed the steel pile casing, it is guaranteed that the embedding position and perpendicularity of the pile casing meet the design requirements, slurry does not need to be prepared, the slurry preparation and recycling cost is saved, and the construction period is shortened. And pollution to the marine environment is avoided.
本发明涉及水下建筑桩基施工技术领域，尤其涉及一种复杂地质条件下灌注桩施工方法，包括：S1、搭设施工平台；S2、桩位放样；S3、对覆盖层较浅且有斜岩处进行平整处理；S4、旋挖钻引孔、埋设钢护筒；S5、旋挖钻钻进成孔；S6、孔底处理；S7、清孔并下放钢筋笼；S8、下放导管，浇筑混凝土；在覆盖层较浅且有斜岩的情况下采用冲击钻将岩面处理平整，既保证了施工效率又保证了后续使用旋挖钻可以快速引孔入岩埋设钢护筒，保证了护筒埋设位置和垂直度符合设计要求，不需要制备泥浆，节省泥浆制备和回收成本，避免了对海上环境污染。
Cast-in-place pile construction method under complex geological conditions
一种复杂地质条件下灌注桩施工方法
JIANG HUA (author) / DU LU (author) / DONG LIKE (author) / ZHONG LIANGCAI (author) / ZHENG ZHANLING (author) / HOU JIAZHUANG (author) / ZHENG YUNHENG (author) / LI RUI (author) / HU BIN (author)
2024-08-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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