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Construction method of underpinning pile cap foundation pit supporting structure in pile foundation underpinning construction
The invention discloses a construction method of an underpinning pile cap foundation pit supporting structure in pile foundation underpinning construction. The construction method comprises the following steps that firstly, a foundation pit for applying underpinning pile cap is excavated, and pumice, rock ballast and deposits on the excavation surface of a foundation pit are removed; anchor bars are anchored on the peripheral side walls of the foundation pit; and finally, a concrete bottom layer, a reinforcing mesh and a concrete surface layer are formed on the peripheral side walls of the foundation pit through one-time construction, and finally the supporting structure of a reinforced concrete structure is formed. The construction method is convenient to construct and simple in process,and the supporting structure obtained through construction is good in supporting performance, high in stability and good in waterproofness.
本发明公开了一种桩基托换施工中托换桩帽基坑支护结构的施工方法，该施工方法先开挖用于施作托换桩帽的基坑，清除基坑开挖面的浮石、石渣和堆积物；再在基坑的四周侧壁上锚设锚筋；最后在基坑的四周侧壁上一次施工形成混凝土底层、钢筋网和混凝土表层，最终形成钢筋混凝土结构的支护结构。该施工方法施工方便、流程简单，施工所获得支护结构的支护性能好、稳固性高，并具有较好的防水性。
Construction method of underpinning pile cap foundation pit supporting structure in pile foundation underpinning construction
The invention discloses a construction method of an underpinning pile cap foundation pit supporting structure in pile foundation underpinning construction. The construction method comprises the following steps that firstly, a foundation pit for applying underpinning pile cap is excavated, and pumice, rock ballast and deposits on the excavation surface of a foundation pit are removed; anchor bars are anchored on the peripheral side walls of the foundation pit; and finally, a concrete bottom layer, a reinforcing mesh and a concrete surface layer are formed on the peripheral side walls of the foundation pit through one-time construction, and finally the supporting structure of a reinforced concrete structure is formed. The construction method is convenient to construct and simple in process,and the supporting structure obtained through construction is good in supporting performance, high in stability and good in waterproofness.
本发明公开了一种桩基托换施工中托换桩帽基坑支护结构的施工方法，该施工方法先开挖用于施作托换桩帽的基坑，清除基坑开挖面的浮石、石渣和堆积物；再在基坑的四周侧壁上锚设锚筋；最后在基坑的四周侧壁上一次施工形成混凝土底层、钢筋网和混凝土表层，最终形成钢筋混凝土结构的支护结构。该施工方法施工方便、流程简单，施工所获得支护结构的支护性能好、稳固性高，并具有较好的防水性。
Construction method of underpinning pile cap foundation pit supporting structure in pile foundation underpinning construction
一种桩基托换施工中托换桩帽基坑支护结构的施工方法
LIAO LINGJUN (author) / ZHOU KAI (author) / MO CHENG (author) / HUANG YONG (author) / WU HAO (author) / LIU LIFENG (author)
2021-02-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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