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A platform for research: civil engineering, architecture and urbanism
Construction method of mixing pile penetrating through existing underground reinforced concrete structure
The invention discloses a construction method of a mixing pile penetrating through an existing underground reinforced concrete structure, which comprises the following steps: S1, excavating a replacement and filling area which comprises a first replacement and filling area and a second replacement and filling area; s2, first cement soil is used for backfilling the replacement filling area to the ground in a layered mode and is compacted; s3, a second obstacle clearing area is designed according to the mixing pile construction area, the mixing pile construction area is located in the second obstacle clearing area, then a full-rotation casing drilling machine is adopted for drilling in the second obstacle clearing area to form an obstacle clearing hole, and the bottom end of the obstacle clearing hole is lower than the bottom face of the underground structure bottom plate; backfilling the obstacle clearing holes by adopting second cement soil in a layered manner; and S4, construction of the stirring pile is conducted in the second obstacle removing area. According to the construction method, the existing underground reinforced concrete structure is used for retaining soil and water, the influence on the surrounding environment is small, the risk of foundation pit construction is avoided, the construction process is safe and rapid, and the construction period is shortened.
本发明公开了一种穿越既有地下钢筋混凝土结构的搅拌桩施工方法，包括以下步骤：S1、开挖换填区域，所述换填区域包括第一换填区和第二换填区，具；S2、采用第一水泥土分层回填所述换填区域至地面并压实；S3、根据所述搅拌桩施工区域设计第二清障区域，所述搅拌桩施工区域位于所述第二清障区域内，然后采用全回旋套管钻机在所述第二清障区域内钻孔形成清障孔，所述清障孔的底端低于所述地下结构底板的底面；采用第二水泥土分层回填所述清障孔；S4、在所述第二清障区域内进行所述搅拌桩的施工。本发明的施工方法利用既有地下钢筋混凝土结构挡土挡水，对周边环境影响小，无基坑施工的风险，施工过程安全快捷，缩短了施工工期。
Construction method of mixing pile penetrating through existing underground reinforced concrete structure
The invention discloses a construction method of a mixing pile penetrating through an existing underground reinforced concrete structure, which comprises the following steps: S1, excavating a replacement and filling area which comprises a first replacement and filling area and a second replacement and filling area; s2, first cement soil is used for backfilling the replacement filling area to the ground in a layered mode and is compacted; s3, a second obstacle clearing area is designed according to the mixing pile construction area, the mixing pile construction area is located in the second obstacle clearing area, then a full-rotation casing drilling machine is adopted for drilling in the second obstacle clearing area to form an obstacle clearing hole, and the bottom end of the obstacle clearing hole is lower than the bottom face of the underground structure bottom plate; backfilling the obstacle clearing holes by adopting second cement soil in a layered manner; and S4, construction of the stirring pile is conducted in the second obstacle removing area. According to the construction method, the existing underground reinforced concrete structure is used for retaining soil and water, the influence on the surrounding environment is small, the risk of foundation pit construction is avoided, the construction process is safe and rapid, and the construction period is shortened.
本发明公开了一种穿越既有地下钢筋混凝土结构的搅拌桩施工方法，包括以下步骤：S1、开挖换填区域，所述换填区域包括第一换填区和第二换填区，具；S2、采用第一水泥土分层回填所述换填区域至地面并压实；S3、根据所述搅拌桩施工区域设计第二清障区域，所述搅拌桩施工区域位于所述第二清障区域内，然后采用全回旋套管钻机在所述第二清障区域内钻孔形成清障孔，所述清障孔的底端低于所述地下结构底板的底面；采用第二水泥土分层回填所述清障孔；S4、在所述第二清障区域内进行所述搅拌桩的施工。本发明的施工方法利用既有地下钢筋混凝土结构挡土挡水，对周边环境影响小，无基坑施工的风险，施工过程安全快捷，缩短了施工工期。
Construction method of mixing pile penetrating through existing underground reinforced concrete structure
一种穿越既有地下钢筋混凝土结构的搅拌桩施工方法
CHEN DAQUAN (author) / ZENG HUI (author) / WEI LIANGFENG (author) / FANG WENYI (author) / CAI QINHAO (author) / WANG XIONG (author) / SHEN NIUBEN (author) / LIU JIAJUN (author) / MAO ZHICHAO (author) / ZHANG BO (author)
2023-06-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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