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A platform for research: civil engineering, architecture and urbanism
Temporary steel supporting structure for deep foundation pit construction and construction method of temporary steel supporting structure
The invention discloses a temporary steel supporting structure for deep foundation pit construction. The temporary steel supporting structure comprises embedded parts and supporting rods; the embedded parts are arranged on wall bodies and stand columns near a post-cast strip; and the two ends of each supporting rod are connected to the two adjacent stand columns and the embedded parts on the wall body respectively. The construction method of the temporary steel supporting structure comprises the following steps that S1, when the wall body and the stand columns of negative N layer (the basement is provided with the negative N layers, and N is larger than or equal to 2) of the basement are constructed, the embedded parts are arranged on the wall bodies and the stand columns near the post-cast strip; S2, after construction of the stand columns of the negative N layer of the basement, the wall body near the post-cast strip and the plate face of the negative (N-1) layer in the step S1 is completed, supporting rods are installed, and after a temporary steel supporting structure is formed, supporting beams located above the elevation of the plate face of the negative (N-1) layer in the foundation pit are dismantled; S3, the step S1 and the step S2 are repeated to construct other layers of the basement; and S4, when the post-cast strip is closed for preset time, the temporary steel supporting structure formed in the step S2 can be dismantled. The temporary steel supporting structure and the construction method thereof are suitable for dismounting and replacing the reinforced concrete inner supports of the deep foundation pit of the ultra-long basement in a partitioned and segmented mode, and then partitioned and segmented flow construction of the basement can be guaranteed.
一种深基坑施工的临时钢支撑结构，包括：预埋件，设置在后浇带附近的墙体、立柱上；支撑杆，两端分别与两相邻所述立柱、墙体上的预埋件连接。所述临时钢支撑结构的施工方法，括以下步骤：S1：在对地下室负N层(地下室具有负N层，N≥2)的墙体、立柱施工时，在后浇带附近的墙体、立柱上设置预埋件；S2：当步骤S1中地下室负N层的立柱、后浇带附近的墙体、以及负(N‑1)层板面施工完成后，进行安装支撑杆，形成临时钢支撑结构后，对位于负(N‑1)层板面标高之上的基坑内支撑梁进行拆除；S3：重复步骤S1、步骤S2对地下室其它层进行施工；S4：当后浇带封闭达到预设时间后可对步骤S2中形成的临时钢支撑结构进行拆除。本发明适用于超长地下室深基坑钢筋混凝土内支撑分区分段拆换，进而可以保证地下室分区分段流水施工。
Temporary steel supporting structure for deep foundation pit construction and construction method of temporary steel supporting structure
The invention discloses a temporary steel supporting structure for deep foundation pit construction. The temporary steel supporting structure comprises embedded parts and supporting rods; the embedded parts are arranged on wall bodies and stand columns near a post-cast strip; and the two ends of each supporting rod are connected to the two adjacent stand columns and the embedded parts on the wall body respectively. The construction method of the temporary steel supporting structure comprises the following steps that S1, when the wall body and the stand columns of negative N layer (the basement is provided with the negative N layers, and N is larger than or equal to 2) of the basement are constructed, the embedded parts are arranged on the wall bodies and the stand columns near the post-cast strip; S2, after construction of the stand columns of the negative N layer of the basement, the wall body near the post-cast strip and the plate face of the negative (N-1) layer in the step S1 is completed, supporting rods are installed, and after a temporary steel supporting structure is formed, supporting beams located above the elevation of the plate face of the negative (N-1) layer in the foundation pit are dismantled; S3, the step S1 and the step S2 are repeated to construct other layers of the basement; and S4, when the post-cast strip is closed for preset time, the temporary steel supporting structure formed in the step S2 can be dismantled. The temporary steel supporting structure and the construction method thereof are suitable for dismounting and replacing the reinforced concrete inner supports of the deep foundation pit of the ultra-long basement in a partitioned and segmented mode, and then partitioned and segmented flow construction of the basement can be guaranteed.
一种深基坑施工的临时钢支撑结构，包括：预埋件，设置在后浇带附近的墙体、立柱上；支撑杆，两端分别与两相邻所述立柱、墙体上的预埋件连接。所述临时钢支撑结构的施工方法，括以下步骤：S1：在对地下室负N层(地下室具有负N层，N≥2)的墙体、立柱施工时，在后浇带附近的墙体、立柱上设置预埋件；S2：当步骤S1中地下室负N层的立柱、后浇带附近的墙体、以及负(N‑1)层板面施工完成后，进行安装支撑杆，形成临时钢支撑结构后，对位于负(N‑1)层板面标高之上的基坑内支撑梁进行拆除；S3：重复步骤S1、步骤S2对地下室其它层进行施工；S4：当后浇带封闭达到预设时间后可对步骤S2中形成的临时钢支撑结构进行拆除。本发明适用于超长地下室深基坑钢筋混凝土内支撑分区分段拆换，进而可以保证地下室分区分段流水施工。
Temporary steel supporting structure for deep foundation pit construction and construction method of temporary steel supporting structure
一种深基坑施工的临时钢支撑结构及其施工方法
ZHANG ZHONGHAI (author) / XING ZHENG (author) / QI JUNRONG (author) / CHEN HONGYING (author) / SUN BOWEN (author) / LAI RENJIAN (author) / HUANG YUCHEN (author) / WU ZELIN (author) / MI GENGJIANG (author) / YIN YONGLIANG (author)
2022-01-07
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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