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A platform for research: civil engineering, architecture and urbanism
Drilling and grouting integrated grouting reinforcement method for deep filling foundation
The invention discloses a deep filling foundation drilling and grouting integrated grouting reinforcement method which comprises the following use steps: S1, measuring and releasing a grouting reinforcement point position by adopting a total station or a GPS (Global Positioning System) according to a design drawing, and moving a drilling and grouting integrated drilling machine to the point position to be aligned with the center of the reinforcement point; s2, clear water is adopted as flushing fluid to drill to the position below the bottom face of the foundation; s3, cement paste and quick-setting slurry are prepared at the construction background at the same time; s4, a double-cylinder double-liquid grouting pump is adopted to suck the cement paste and the quick-setting slurry from the ash stirring barrel; S5, the mixed slurry is condensed to a certain strength; s6, after grouting of the first layer is stopped, the drilling and grouting integrated drilling machine continues to conduct downward clean water drilling for 2 m, and the steps S2-S5 are repeated in sequence for depth reinforcement; and S7, real-time settlement monitoring is carried out in the grouting reinforcement process, thick cement paste is injected into the bottom of the hole till thick paste returns to the hole opening, grouting and hole finishing are stopped, it is ensured that the interior of the hole is full and dense, and grouting is completed. The method has the advantages that manual insertion of a grouting pipe and independent manufacturing of hole sealing slurry are not needed, and the construction speed and the grouting quality are high.
本发明公开了一种深厚填土地基钻注一体化注浆加固方法，包括以下使用步骤：S1:根据设计图纸采用全站仪或GPS测放注浆加固点位，将钻注一体化钻机移至点位对准加固点中心；S2:采用清水作为冲洗液钻进至基础底面以下；S3：在施工后台同时制备水泥浆和快凝浆液；S4：采用双缸双液注浆泵将水泥浆和快凝浆液分别从搅灰桶抽吸，S5：待混合浆液凝结至一定强度；S6：停止首层注浆后采用钻注一体化钻机继续向下清水钻进2m，依次重复S2~S5进行加固深度；S7:注浆加固过程中开展实时沉降监测，将浓水泥浆注入孔底直至孔口返浓浆后停止注浆终孔，确保孔内饱满密实，注浆完成，本申请具有无需人工插入注浆管和单独制作封孔泥浆，具有施工速度快、注浆质量高的特点。
Drilling and grouting integrated grouting reinforcement method for deep filling foundation
The invention discloses a deep filling foundation drilling and grouting integrated grouting reinforcement method which comprises the following use steps: S1, measuring and releasing a grouting reinforcement point position by adopting a total station or a GPS (Global Positioning System) according to a design drawing, and moving a drilling and grouting integrated drilling machine to the point position to be aligned with the center of the reinforcement point; s2, clear water is adopted as flushing fluid to drill to the position below the bottom face of the foundation; s3, cement paste and quick-setting slurry are prepared at the construction background at the same time; s4, a double-cylinder double-liquid grouting pump is adopted to suck the cement paste and the quick-setting slurry from the ash stirring barrel; S5, the mixed slurry is condensed to a certain strength; s6, after grouting of the first layer is stopped, the drilling and grouting integrated drilling machine continues to conduct downward clean water drilling for 2 m, and the steps S2-S5 are repeated in sequence for depth reinforcement; and S7, real-time settlement monitoring is carried out in the grouting reinforcement process, thick cement paste is injected into the bottom of the hole till thick paste returns to the hole opening, grouting and hole finishing are stopped, it is ensured that the interior of the hole is full and dense, and grouting is completed. The method has the advantages that manual insertion of a grouting pipe and independent manufacturing of hole sealing slurry are not needed, and the construction speed and the grouting quality are high.
本发明公开了一种深厚填土地基钻注一体化注浆加固方法，包括以下使用步骤：S1:根据设计图纸采用全站仪或GPS测放注浆加固点位，将钻注一体化钻机移至点位对准加固点中心；S2:采用清水作为冲洗液钻进至基础底面以下；S3：在施工后台同时制备水泥浆和快凝浆液；S4：采用双缸双液注浆泵将水泥浆和快凝浆液分别从搅灰桶抽吸，S5：待混合浆液凝结至一定强度；S6：停止首层注浆后采用钻注一体化钻机继续向下清水钻进2m，依次重复S2~S5进行加固深度；S7:注浆加固过程中开展实时沉降监测，将浓水泥浆注入孔底直至孔口返浓浆后停止注浆终孔，确保孔内饱满密实，注浆完成，本申请具有无需人工插入注浆管和单独制作封孔泥浆，具有施工速度快、注浆质量高的特点。
Drilling and grouting integrated grouting reinforcement method for deep filling foundation
一种深厚填土地基钻注一体化注浆加固方法
ZHOU JIANWEI (author) / GAO XIAOFENG (author) / ZHAO WENPENG (author) / XU KE (author) / LI HANG (author)
2024-06-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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