Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for assisting sinking of open caisson by adopting steel sheet piles
The invention discloses a construction method for assisting sinking of an open caisson by adopting a steel sheet pile, which comprises the following steps: after the construction of the open caisson is completed, excavating an annular mud pit on the periphery of the open caisson, enabling the annular mud pit to extend inwards to the outer wall of the open caisson, and preparing mud in the annular mud pit; injecting water into the open caisson to soften a soil body in the open caisson; steel sheet piles are vertically and downwards driven into the annular mud pit, so that the bottom elevation of the steel sheet piles is lower than the blade foot bottom elevation of the open caisson; pulling out the steel sheet pile after the steel sheet pile is driven in place, and enabling the slurry to flow into a pile pit formed by pulling out the steel sheet pile; the steps are repeated, so that the open caisson sinks to the designed position; and after the open caisson sinks to the designed position, accumulated water in the open caisson is pumped out, the annular mud pit and the pile pit are backfilled, and the construction efficiency is improved through the construction method.
本发明公开了一种采用钢板桩辅助沉井下沉的施工方法，包括步骤：在沉井施工完成后，在所述沉井外周开挖环形泥浆池，使所述环形泥浆池向内延伸至所述沉井的外壁，在所述环形泥浆池内制备泥浆；向所述沉井内注水以软化所述沉井内的土体；自所述环形泥浆池竖直向下打入钢板桩，使所述钢板桩的底标高低于所述沉井的刃脚底标高；在所述钢板桩打入到位后拔出，使所述泥浆流入拔出钢板桩形成的桩坑内；重复上述步骤使所述沉井自沉至设计位置；在所述沉井下沉到设计位置后，将所述沉井内的积水抽出，并回填所述环形泥浆池以及桩坑，通过上述施工方法提高了施工效率。
Construction method for assisting sinking of open caisson by adopting steel sheet piles
The invention discloses a construction method for assisting sinking of an open caisson by adopting a steel sheet pile, which comprises the following steps: after the construction of the open caisson is completed, excavating an annular mud pit on the periphery of the open caisson, enabling the annular mud pit to extend inwards to the outer wall of the open caisson, and preparing mud in the annular mud pit; injecting water into the open caisson to soften a soil body in the open caisson; steel sheet piles are vertically and downwards driven into the annular mud pit, so that the bottom elevation of the steel sheet piles is lower than the blade foot bottom elevation of the open caisson; pulling out the steel sheet pile after the steel sheet pile is driven in place, and enabling the slurry to flow into a pile pit formed by pulling out the steel sheet pile; the steps are repeated, so that the open caisson sinks to the designed position; and after the open caisson sinks to the designed position, accumulated water in the open caisson is pumped out, the annular mud pit and the pile pit are backfilled, and the construction efficiency is improved through the construction method.
本发明公开了一种采用钢板桩辅助沉井下沉的施工方法，包括步骤：在沉井施工完成后，在所述沉井外周开挖环形泥浆池，使所述环形泥浆池向内延伸至所述沉井的外壁，在所述环形泥浆池内制备泥浆；向所述沉井内注水以软化所述沉井内的土体；自所述环形泥浆池竖直向下打入钢板桩，使所述钢板桩的底标高低于所述沉井的刃脚底标高；在所述钢板桩打入到位后拔出，使所述泥浆流入拔出钢板桩形成的桩坑内；重复上述步骤使所述沉井自沉至设计位置；在所述沉井下沉到设计位置后，将所述沉井内的积水抽出，并回填所述环形泥浆池以及桩坑，通过上述施工方法提高了施工效率。
Construction method for assisting sinking of open caisson by adopting steel sheet piles
采用钢板桩辅助沉井下沉的施工方法
HOU YAPEI (Autor:in) / JIA FEI (Autor:in) / TAN FEIXIANG (Autor:in) / LIU WOSHENG (Autor:in) / WEN JUNJIE (Autor:in) / LI PING (Autor:in)
05.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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