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A platform for research: civil engineering, architecture and urbanism
Foundation pit support construction method close to existing operating railway
The invention discloses a foundation pit support construction method close to an existing operating railway, which comprises the following steps of: S1, pressing a pipe below a foundation pit: pressing a sleeve into the lower part of the foundation pit through a sleeve drilling machine, connecting the pipe according to the depth of a hole to be drilled, repeatedly pressing a plurality of sleeves into soil, and after all the sleeves are pressed into the lower part of the foundation pit, pressing the pipe into the foundation pit; at the moment, the last section of casing pipe is pressed in and extends to the position above the foundation pit, then concrete is poured through a concrete pouring guide pipe, and after concrete pouring is completed, the casing pipe is taken out to form a pile A; the invention relates to the technical field of foundation pit supporting construction. According to the supporting construction method for the foundation pit close to the existing operating railway, a pile A formed after pipe pressing below the foundation pit is perpendicular to a pile B formed after pipe pressing on the side of the foundation pit, a cast-in-place pile, a top beam, the pile A and the pile B are connected into a whole in a pouring mode, a connecting key is formed between the pile A and the pile B, and the strength of the lower portion and the side of the foundation pit is guaranteed through the pile A and the pile B; and the meshing performance of the foundation pit is effectively enhanced at the joint, and higher maintenance rigidity is obtained.
本发明公开了一种临近既有运营铁路的基坑支护施工方法，S1、基坑下方压管：通过套管钻机将套管压入基坑下方，根据需要钻孔的深度进行接管，将多个套管重复上述操作压入土中，当套管全部压入基坑下方后，此时再压入最后一节套管延伸至基坑上方，然后通过砼灌注导管浇筑混凝土，当混凝土浇筑完成后，取出套管，形成A桩；本发明涉及基坑支护施工技术领域。该临近既有运营铁路的基坑支护施工方法，利用基坑下方压管后形成的A桩与基坑侧方压管后形成的B桩垂直，并将灌注桩、冠梁、A桩和B桩浇筑连成一个整体，A桩和B之间形成了连接键，A桩和B桩保证了基坑下方和侧方的强度，在连接处有效的增强了基坑的咬合性能，获得了更大的维护刚度。
Foundation pit support construction method close to existing operating railway
The invention discloses a foundation pit support construction method close to an existing operating railway, which comprises the following steps of: S1, pressing a pipe below a foundation pit: pressing a sleeve into the lower part of the foundation pit through a sleeve drilling machine, connecting the pipe according to the depth of a hole to be drilled, repeatedly pressing a plurality of sleeves into soil, and after all the sleeves are pressed into the lower part of the foundation pit, pressing the pipe into the foundation pit; at the moment, the last section of casing pipe is pressed in and extends to the position above the foundation pit, then concrete is poured through a concrete pouring guide pipe, and after concrete pouring is completed, the casing pipe is taken out to form a pile A; the invention relates to the technical field of foundation pit supporting construction. According to the supporting construction method for the foundation pit close to the existing operating railway, a pile A formed after pipe pressing below the foundation pit is perpendicular to a pile B formed after pipe pressing on the side of the foundation pit, a cast-in-place pile, a top beam, the pile A and the pile B are connected into a whole in a pouring mode, a connecting key is formed between the pile A and the pile B, and the strength of the lower portion and the side of the foundation pit is guaranteed through the pile A and the pile B; and the meshing performance of the foundation pit is effectively enhanced at the joint, and higher maintenance rigidity is obtained.
本发明公开了一种临近既有运营铁路的基坑支护施工方法，S1、基坑下方压管：通过套管钻机将套管压入基坑下方，根据需要钻孔的深度进行接管，将多个套管重复上述操作压入土中，当套管全部压入基坑下方后，此时再压入最后一节套管延伸至基坑上方，然后通过砼灌注导管浇筑混凝土，当混凝土浇筑完成后，取出套管，形成A桩；本发明涉及基坑支护施工技术领域。该临近既有运营铁路的基坑支护施工方法，利用基坑下方压管后形成的A桩与基坑侧方压管后形成的B桩垂直，并将灌注桩、冠梁、A桩和B桩浇筑连成一个整体，A桩和B之间形成了连接键，A桩和B桩保证了基坑下方和侧方的强度，在连接处有效的增强了基坑的咬合性能，获得了更大的维护刚度。
Foundation pit support construction method close to existing operating railway
一种临近既有运营铁路的基坑支护施工方法
DENG SHOUJUN (author) / ZENG WEIFENG (author) / FENG JIANZHOU (author) / SONG HONGJI (author) / WU JIANFENG (author) / HU MINGLEI (author) / LIU HONGLIANG (author)
2022-04-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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