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A platform for research: civil engineering, architecture and urbanism
Anti-collapse hole construction method for anti-floating anchor rod
The invention belongs to the field of building construction, and relates to a hole collapse prevention construction method for an anti-floating anchor rod, which comprises the following steps of: measuring and positioning; drilling a drilling machine in place; hole forming and grouting; placing an anchor rod; 3-4 hours after the first-time grouting is completed, the strength of a cement stone body reaches 5 MPa, secondary grout supplementing is conducted, the position of the rod body of the steel bar anchor rod is adjusted again before secondary grout supplementing, and it is ensured that the position deviation of the rod body meets the requirement; after the secondary grouting pressure reaches 2.0 Kpa, the pressure is stabilized for 5 min, grouting is stopped, and after grouting is completed, before the slurry strength does not meet the requirement, the anchor rod body cannot bear the external force or the anchor body moves due to the external force; and naturally curing the poured cement stone body. According to the construction method, the dry type drilling hole-forming machine is adopted, the construction method that plain cement slurry is injected to protect the wall in the hole-forming process, and after hole forming, grouting is conducted firstly, and then the steel bar anchor rod body is placed is adopted, hole collapse is effectively controlled, the construction quality of the anti-floating anchor rod is guaranteed, the construction period is shortened, and the working efficiency is improved.
本发明属于建筑施工领域，涉及一种抗浮锚杆防塌孔施工方法，包括以下步骤：测量定位；钻机就位转孔；成孔注浆；锚杆安放；第一次注浆完毕3‑4h后，水泥结石体强度达到5MPa，进行二次补浆，二次补浆前再一次调整钢筋锚杆杆体位置，确保杆体位置偏差符合要求；二次注浆压力达到2.0Kpa后稳压5min停止注浆，注浆完毕，在浆体强度未达到要求前，锚杆体不得承受外力或由外力引起的锚体移动；对浇筑完成的水泥结石体进行自然养护。本发明采用干式钻进成孔机械，在采用成孔过程中即注素水泥浆护壁，成孔后先注浆后放置钢筋锚杆杆体的施工方法，有效控制了塌孔，保证了抗浮锚杆施工质量，缩短了施工工期，提高了工作效率。
Anti-collapse hole construction method for anti-floating anchor rod
The invention belongs to the field of building construction, and relates to a hole collapse prevention construction method for an anti-floating anchor rod, which comprises the following steps of: measuring and positioning; drilling a drilling machine in place; hole forming and grouting; placing an anchor rod; 3-4 hours after the first-time grouting is completed, the strength of a cement stone body reaches 5 MPa, secondary grout supplementing is conducted, the position of the rod body of the steel bar anchor rod is adjusted again before secondary grout supplementing, and it is ensured that the position deviation of the rod body meets the requirement; after the secondary grouting pressure reaches 2.0 Kpa, the pressure is stabilized for 5 min, grouting is stopped, and after grouting is completed, before the slurry strength does not meet the requirement, the anchor rod body cannot bear the external force or the anchor body moves due to the external force; and naturally curing the poured cement stone body. According to the construction method, the dry type drilling hole-forming machine is adopted, the construction method that plain cement slurry is injected to protect the wall in the hole-forming process, and after hole forming, grouting is conducted firstly, and then the steel bar anchor rod body is placed is adopted, hole collapse is effectively controlled, the construction quality of the anti-floating anchor rod is guaranteed, the construction period is shortened, and the working efficiency is improved.
本发明属于建筑施工领域，涉及一种抗浮锚杆防塌孔施工方法，包括以下步骤：测量定位；钻机就位转孔；成孔注浆；锚杆安放；第一次注浆完毕3‑4h后，水泥结石体强度达到5MPa，进行二次补浆，二次补浆前再一次调整钢筋锚杆杆体位置，确保杆体位置偏差符合要求；二次注浆压力达到2.0Kpa后稳压5min停止注浆，注浆完毕，在浆体强度未达到要求前，锚杆体不得承受外力或由外力引起的锚体移动；对浇筑完成的水泥结石体进行自然养护。本发明采用干式钻进成孔机械，在采用成孔过程中即注素水泥浆护壁，成孔后先注浆后放置钢筋锚杆杆体的施工方法，有效控制了塌孔，保证了抗浮锚杆施工质量，缩短了施工工期，提高了工作效率。
Anti-collapse hole construction method for anti-floating anchor rod
抗浮锚杆防塌孔施工方法
ZHANG YUNZE (author) / QIAO CHEN (author) / HUAI GANG (author) / ZHAO YUEXIAN (author) / HOU KANGKANG (author) / DOU JUN (author)
2023-08-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2024