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A platform for research: civil engineering, architecture and urbanism
Multi-liquid composite micro-disturbance mixing pile preparation process
The invention discloses a multi-liquid composite micro-disturbance mixing pile preparation process which comprises the following steps: preparation before construction, measurement and lofting, accurate lofting of a pile position by a measurer, and marking; a furrowing machine is adopted to excavate a groove; setting a guide positioning line; taking a pile machine in place, drilling by the pile machine, spraying cement slurry, spraying air, stirring and sinking to a designed elevation; lifting, spraying cement slurry, spraying composite slurry and stirring; and after the formed pile is condensed and shaped, the pile machine is moved. And a multi-liquid composite micro-disturbance mixing pile process is used, and a multi-liquid spraying device is additionally arranged, so that the cost is low, and the practical value is very good. The setting time of the cement soil and composite slurry mixed stirring pile with different mixing proportions can be obtained according to a field test, and the purpose of controllable deformation of foundation soil can be achieved. The method is used for reinforcing the foundation, reinforcing the periphery of an important building with the strength of the water-stopping mixing pile quickly reaching or being higher than that of undisturbed soil and reinforcing a foundation pit, and is particularly suitable for water stopping and soil body reinforcing in a subway crossing section and close to a rail transit route.
本发明公开了一种多液复合微扰动搅拌桩制备工艺，步骤为：施工前准备，测量放样，测量人员对桩位进行精确放样，并做好标记；采用开沟机进行开挖沟槽；设置导向定位线；桩机就位，桩机钻进、喷水泥浆液、喷气搅拌下沉至设计标高；提升、喷水泥浆液、喷复合浆液搅拌；待成桩凝结定型后，桩机移机即可。使用多液复合微扰动搅拌桩工艺，增加喷射多液的装置，成本低廉，具有很好的实用价值。不同掺量比例水泥土和复合浆液混合搅拌桩的凝结时间，可依据现场试验得出，可达到地基土变形可控的目的。本发明用于地基加固、止水搅拌桩强度需快速达到或高于原状土的重要建筑物周边以及基坑加固，特别适用于上穿地铁区间、紧临轨道交通路线的止水和土体加固。
Multi-liquid composite micro-disturbance mixing pile preparation process
The invention discloses a multi-liquid composite micro-disturbance mixing pile preparation process which comprises the following steps: preparation before construction, measurement and lofting, accurate lofting of a pile position by a measurer, and marking; a furrowing machine is adopted to excavate a groove; setting a guide positioning line; taking a pile machine in place, drilling by the pile machine, spraying cement slurry, spraying air, stirring and sinking to a designed elevation; lifting, spraying cement slurry, spraying composite slurry and stirring; and after the formed pile is condensed and shaped, the pile machine is moved. And a multi-liquid composite micro-disturbance mixing pile process is used, and a multi-liquid spraying device is additionally arranged, so that the cost is low, and the practical value is very good. The setting time of the cement soil and composite slurry mixed stirring pile with different mixing proportions can be obtained according to a field test, and the purpose of controllable deformation of foundation soil can be achieved. The method is used for reinforcing the foundation, reinforcing the periphery of an important building with the strength of the water-stopping mixing pile quickly reaching or being higher than that of undisturbed soil and reinforcing a foundation pit, and is particularly suitable for water stopping and soil body reinforcing in a subway crossing section and close to a rail transit route.
本发明公开了一种多液复合微扰动搅拌桩制备工艺，步骤为：施工前准备，测量放样，测量人员对桩位进行精确放样，并做好标记；采用开沟机进行开挖沟槽；设置导向定位线；桩机就位，桩机钻进、喷水泥浆液、喷气搅拌下沉至设计标高；提升、喷水泥浆液、喷复合浆液搅拌；待成桩凝结定型后，桩机移机即可。使用多液复合微扰动搅拌桩工艺，增加喷射多液的装置，成本低廉，具有很好的实用价值。不同掺量比例水泥土和复合浆液混合搅拌桩的凝结时间，可依据现场试验得出，可达到地基土变形可控的目的。本发明用于地基加固、止水搅拌桩强度需快速达到或高于原状土的重要建筑物周边以及基坑加固，特别适用于上穿地铁区间、紧临轨道交通路线的止水和土体加固。
Multi-liquid composite micro-disturbance mixing pile preparation process
一种多液复合微扰动搅拌桩制备工艺
QIAN HAIBO (author) / YANG LEI (author) / HAN JIANYONG (author) / GAO XIANG (author) / LIU FEI (author) / CHEN HUI (author) / LIANG HUI (author) / JIA SHANGHUA (author) / TONG XIAOLONG (author) / LI JIAPING (author)
2022-04-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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