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A platform for research: civil engineering, architecture and urbanism
Segmented grouting construction method for anti-floating anchor rod
The invention relates to the technical field of independent foundation anti-floating anchor rod construction, and particularly discloses an anti-floating anchor rod segmented grouting construction method which specifically comprises the following steps that after large-face earth excavation of a foundation pit is completed, anchor rod hole drilling construction is conducted; first grouting is conducted, and the height of the first grouting is smaller than the distance between the bottom of the anchor rod hole and the bottom of the independent foundation; a pile casing is installed on the upper portion of the first-time grouting; carrying out independent foundation earthwork excavation, brick mould construction and earthwork backfilling and compacting; and second-time grouting construction is conducted on the steel casing part. According to the method, the situation that the effective length of the anti-floating anchor rod is insufficient due to the fact that the distance between the independent foundation and the anti-floating anchor rod is too close when the independent foundation is excavated and the upper rod body of the anti-floating anchor rod is damaged by an excavation machine can be effectively avoided.
本发明涉及独立基础抗浮锚杆施工技术领域，具体公开了一种抗浮锚杆分段注浆施工方法，具体包括以下步骤：在基坑大面土方开挖完毕后，进行锚杆孔钻孔施工；进行第一次注浆，并使得第一次注浆的高度小于锚杆孔底部与独立基础底部之间的距离；在第一次注浆的上部分安装护筒；独立基础土方开挖、砖胎膜施工、土方回填并压实；对于钢护筒部分进行第二次注浆施工。本发明能够有效的避免开挖独立基础时，由于独立基础与抗浮锚杆距离过近，挖机会损坏抗浮锚杆上部杆体，造成抗浮锚杆有效长度不足。
Segmented grouting construction method for anti-floating anchor rod
The invention relates to the technical field of independent foundation anti-floating anchor rod construction, and particularly discloses an anti-floating anchor rod segmented grouting construction method which specifically comprises the following steps that after large-face earth excavation of a foundation pit is completed, anchor rod hole drilling construction is conducted; first grouting is conducted, and the height of the first grouting is smaller than the distance between the bottom of the anchor rod hole and the bottom of the independent foundation; a pile casing is installed on the upper portion of the first-time grouting; carrying out independent foundation earthwork excavation, brick mould construction and earthwork backfilling and compacting; and second-time grouting construction is conducted on the steel casing part. According to the method, the situation that the effective length of the anti-floating anchor rod is insufficient due to the fact that the distance between the independent foundation and the anti-floating anchor rod is too close when the independent foundation is excavated and the upper rod body of the anti-floating anchor rod is damaged by an excavation machine can be effectively avoided.
本发明涉及独立基础抗浮锚杆施工技术领域，具体公开了一种抗浮锚杆分段注浆施工方法，具体包括以下步骤：在基坑大面土方开挖完毕后，进行锚杆孔钻孔施工；进行第一次注浆，并使得第一次注浆的高度小于锚杆孔底部与独立基础底部之间的距离；在第一次注浆的上部分安装护筒；独立基础土方开挖、砖胎膜施工、土方回填并压实；对于钢护筒部分进行第二次注浆施工。本发明能够有效的避免开挖独立基础时，由于独立基础与抗浮锚杆距离过近，挖机会损坏抗浮锚杆上部杆体，造成抗浮锚杆有效长度不足。
Segmented grouting construction method for anti-floating anchor rod
一种抗浮锚杆分段注浆施工方法
FAN DONGLING (author) / LI YONGSHUAI (author)
2022-05-31
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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