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Construction method for reverse excavation pouring inspection well of small-pipe-diameter long-distance pipe jacking foundation pit
The invention provides a construction method for reverse excavation and pouring of inspection wells in a small-pipe-diameter long-distance pipe jacking foundation pit, and belongs to the technical field of building construction.The construction method comprises the steps that after small-pipe-diameter long-distance pipe jacking construction is completed, the position of each inspection well is determined; excavation is carried out at the design position of each inspection well, anchor-shotcrete supporting is carried out, and excavation is carried out to the low elevation of a design cushion layer; inspection well bottom plate reinforcing steel bars are bound, and lower wall reinforcing steel bars are bound to the same height as the top of the pipeline; an anchor-shotcrete support wall is used as an outer formwork, only an inner formwork is installed, and inspection well bottom plate and lower wall body concrete is poured; after the lower wall concrete reaches the design strength, the upper half part of the pipeline in the inspection well is cut off; the lower half part of the pipeline is reserved as a chute of the inspection well, and concrete with the same height as the chute is poured on each side of the chute; binding upper wall body steel bars, installing a template, and pouring upper wall body and top plate concrete; and removing the mold and curing the concrete to finish the construction of the inspection well main body structure.
本发明提供了一种小管径长距离顶管基坑反开挖浇筑检查井的施工方法，属于建筑施工技术领域，包括：小管径长距离顶管施工完成后,确定每个检查井的位置；在每个检查井设计位置进行开挖,并进行锚喷支护,开挖至设计垫层低标高；进行检查井底板钢筋绑扎,并将下部墙体钢筋绑扎至与管道顶部同高度；利用锚喷支护墙作为外模板,仅安装内模板,浇筑检查井底板及下部墙体混凝土；待下部墙体混凝土达到设计强度后,切除检查井内管道上半部分；保留管道下半部分作为检查井的溜槽,在溜槽各侧浇筑与溜槽同高度的混凝土；绑扎上部墙体钢筋,安装模板,浇筑上部墙体及顶板混凝土；拆模并养护混凝土,完成检查井主体结构施工。
Construction method for reverse excavation pouring inspection well of small-pipe-diameter long-distance pipe jacking foundation pit
The invention provides a construction method for reverse excavation and pouring of inspection wells in a small-pipe-diameter long-distance pipe jacking foundation pit, and belongs to the technical field of building construction.The construction method comprises the steps that after small-pipe-diameter long-distance pipe jacking construction is completed, the position of each inspection well is determined; excavation is carried out at the design position of each inspection well, anchor-shotcrete supporting is carried out, and excavation is carried out to the low elevation of a design cushion layer; inspection well bottom plate reinforcing steel bars are bound, and lower wall reinforcing steel bars are bound to the same height as the top of the pipeline; an anchor-shotcrete support wall is used as an outer formwork, only an inner formwork is installed, and inspection well bottom plate and lower wall body concrete is poured; after the lower wall concrete reaches the design strength, the upper half part of the pipeline in the inspection well is cut off; the lower half part of the pipeline is reserved as a chute of the inspection well, and concrete with the same height as the chute is poured on each side of the chute; binding upper wall body steel bars, installing a template, and pouring upper wall body and top plate concrete; and removing the mold and curing the concrete to finish the construction of the inspection well main body structure.
本发明提供了一种小管径长距离顶管基坑反开挖浇筑检查井的施工方法，属于建筑施工技术领域，包括：小管径长距离顶管施工完成后,确定每个检查井的位置；在每个检查井设计位置进行开挖,并进行锚喷支护,开挖至设计垫层低标高；进行检查井底板钢筋绑扎,并将下部墙体钢筋绑扎至与管道顶部同高度；利用锚喷支护墙作为外模板,仅安装内模板,浇筑检查井底板及下部墙体混凝土；待下部墙体混凝土达到设计强度后,切除检查井内管道上半部分；保留管道下半部分作为检查井的溜槽,在溜槽各侧浇筑与溜槽同高度的混凝土；绑扎上部墙体钢筋,安装模板,浇筑上部墙体及顶板混凝土；拆模并养护混凝土,完成检查井主体结构施工。
Construction method for reverse excavation pouring inspection well of small-pipe-diameter long-distance pipe jacking foundation pit
一种小管径长距离顶管基坑反开挖浇筑检查井的施工方法
ZHAO GENBIAO (author) / QIN HAIMING (author) / SHAO XING (author) / WANG DEYIN (author) / WANG SIZHEN (author) / YUAN SHAOHUI (author) / QIAO JUNFENG (author) / ZHANG YONG (author) / YANG GUANGLI (author) / JIN MINGHAO (author)
2024-07-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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