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Asynchronous support changing construction method for super-large-area deep foundation pit in complex environment
The invention relates to the technical field of foundation pit support changing, in particular to an asynchronous support changing construction method for an ultra-large-area deep foundation pit in a complex environment. Comprising the steps that S1, a foundation pit is divided into a plurality of areas, the areas are enclosed through surveying and setting out, and the interiors of the areas are cleaned; s2, the elevation is designed, a foundation bed is constructed according to requirements, and a pipeline chamber is poured in the foundation pit; s3, expansive concrete construction is conducted on the main structure pipeline chamber; s4, a support changing platform is installed, and the support changing platform is divided into a first supporting platform, a second supporting platform and a third supporting platform according to the depth of the foundation pit; s5, foam concrete backfilling is conducted after the support changing platform is installed; s6, dismounting a platform plate, a horizontal jack and a steel base plate of the support changing platform after the strength is stable; s7, the steps S4, S5 and S6 are repeated, and support replacement of the second supporting platform and the third supporting platform is completed; and S8, the same steps S2, S3, S4, S5 and S6 are carried out in other areas, and support changing platform fixing is completed in other areas of the foundation pit.
本发明涉及基坑换撑技术领域，是一种复杂环境下超大面积深基坑异步换撑施工方法。包括：S1、将基坑分为若干个区域，通过测量放线对区域进行围挡，并对区域内进行清洁处理；S2、设计标高，根据要求进行基础垫层，在基坑内浇筑管道室；S3、对主体结构管道室进行膨胀混凝土施工；S4、对换撑平台进行安装，根据基坑的深度分为第一支撑平台、第二支撑平台、第三支撑平台；S5、在换撑平台安装完毕后进行泡沫混凝土的回填；S6、等强度稳定后对换撑平台的平台板、水平千斤顶、钢垫板的拆卸；S7、重复步骤S4、S5、S6，将第二支撑平台、第三支撑平台完成换撑；S8、在其他区域进行相同的S2、S3、S4、S5、S6、步骤，对基坑的其它区域完成换撑平台固定。
Asynchronous support changing construction method for super-large-area deep foundation pit in complex environment
The invention relates to the technical field of foundation pit support changing, in particular to an asynchronous support changing construction method for an ultra-large-area deep foundation pit in a complex environment. Comprising the steps that S1, a foundation pit is divided into a plurality of areas, the areas are enclosed through surveying and setting out, and the interiors of the areas are cleaned; s2, the elevation is designed, a foundation bed is constructed according to requirements, and a pipeline chamber is poured in the foundation pit; s3, expansive concrete construction is conducted on the main structure pipeline chamber; s4, a support changing platform is installed, and the support changing platform is divided into a first supporting platform, a second supporting platform and a third supporting platform according to the depth of the foundation pit; s5, foam concrete backfilling is conducted after the support changing platform is installed; s6, dismounting a platform plate, a horizontal jack and a steel base plate of the support changing platform after the strength is stable; s7, the steps S4, S5 and S6 are repeated, and support replacement of the second supporting platform and the third supporting platform is completed; and S8, the same steps S2, S3, S4, S5 and S6 are carried out in other areas, and support changing platform fixing is completed in other areas of the foundation pit.
本发明涉及基坑换撑技术领域，是一种复杂环境下超大面积深基坑异步换撑施工方法。包括：S1、将基坑分为若干个区域，通过测量放线对区域进行围挡，并对区域内进行清洁处理；S2、设计标高，根据要求进行基础垫层，在基坑内浇筑管道室；S3、对主体结构管道室进行膨胀混凝土施工；S4、对换撑平台进行安装，根据基坑的深度分为第一支撑平台、第二支撑平台、第三支撑平台；S5、在换撑平台安装完毕后进行泡沫混凝土的回填；S6、等强度稳定后对换撑平台的平台板、水平千斤顶、钢垫板的拆卸；S7、重复步骤S4、S5、S6，将第二支撑平台、第三支撑平台完成换撑；S8、在其他区域进行相同的S2、S3、S4、S5、S6、步骤，对基坑的其它区域完成换撑平台固定。
Asynchronous support changing construction method for super-large-area deep foundation pit in complex environment
一种复杂环境下超大面积深基坑异步换撑施工方法
HU HEXIANG (author) / ZHAO YANBO (author) / JIN XIAOFEI (author) / YANG XUDONG (author) / ZHANG TINGAN (author) / LI HUANJUN (author) / LI CHAOLAI (author) / MIAO YINGJING (author) / TANG ZISEN (author) / LI ZEBIAO (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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