A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for foundation reinforcement
The invention discloses a construction method for foundation reinforcement, which comprises the following steps of: formulating a construction process flow table according to a construction environment of an existing building in combination with an existing technical means; drilling construction is conducted, a down-the-hole drill and an air compressor matched with the down-the-hole drill are selected, and a steel sleeve is adopted to follow dry operation to form holes; according to the fast-forming fine stone pile, the steel sleeve is filled with the mixed aggregate of fine stone and sand, the fast-forming fine stone pile is formed after double-liquid slurry blocking and grouting are matched, the compressive strength of each formed pile can reach C20 or above, and by designing and arranging a certain number of fast-forming fine stone piles, the bearing capacity of an original foundation can be greatly improved. In the whole construction process of the fast-forming fine stone pile, due to maintenance of the steel sleeve and supporting of sand and stone aggregate, soil around the pile cannot be disturbed and deformed, uneven settlement of an existing building cannot be affected, and the safety of the existing building in the reinforcing process is effectively guaranteed. The reinforcing method is economical, construction is convenient, and construction equipment is small, exquisite and flexible and is not affected by the construction environment.
本发明公开了一种地基加固的施工方法，该施工方法包括以下步骤：根据既有建筑的施工环境，结合现有的技术手段，制定施工工艺流程表；钻孔施工，选用潜孔钻机和与之匹配的空压机，采用钢套管跟进干作业成孔；通过采用细石与砂的混合骨料填充钢套管，配合双液浆封堵，注浆完成的速成细石桩即成型，每根桩成型后的抗压强度可达C20以上，通过设计布置一定数量的速成细石桩，可大大提高原地基的承载力。速成细石桩在整个施工过程中，有钢套管的维护及砂、石骨料的支撑，桩周土体不会发生扰动变形从而影响既有建筑不均匀沉降，有效地保证了在加固过程中既有建筑的安全。本加固方法经济、施工便捷且施工设备小巧灵活，不受施工环境的影响。
Construction method for foundation reinforcement
The invention discloses a construction method for foundation reinforcement, which comprises the following steps of: formulating a construction process flow table according to a construction environment of an existing building in combination with an existing technical means; drilling construction is conducted, a down-the-hole drill and an air compressor matched with the down-the-hole drill are selected, and a steel sleeve is adopted to follow dry operation to form holes; according to the fast-forming fine stone pile, the steel sleeve is filled with the mixed aggregate of fine stone and sand, the fast-forming fine stone pile is formed after double-liquid slurry blocking and grouting are matched, the compressive strength of each formed pile can reach C20 or above, and by designing and arranging a certain number of fast-forming fine stone piles, the bearing capacity of an original foundation can be greatly improved. In the whole construction process of the fast-forming fine stone pile, due to maintenance of the steel sleeve and supporting of sand and stone aggregate, soil around the pile cannot be disturbed and deformed, uneven settlement of an existing building cannot be affected, and the safety of the existing building in the reinforcing process is effectively guaranteed. The reinforcing method is economical, construction is convenient, and construction equipment is small, exquisite and flexible and is not affected by the construction environment.
本发明公开了一种地基加固的施工方法，该施工方法包括以下步骤：根据既有建筑的施工环境，结合现有的技术手段，制定施工工艺流程表；钻孔施工，选用潜孔钻机和与之匹配的空压机，采用钢套管跟进干作业成孔；通过采用细石与砂的混合骨料填充钢套管，配合双液浆封堵，注浆完成的速成细石桩即成型，每根桩成型后的抗压强度可达C20以上，通过设计布置一定数量的速成细石桩，可大大提高原地基的承载力。速成细石桩在整个施工过程中，有钢套管的维护及砂、石骨料的支撑，桩周土体不会发生扰动变形从而影响既有建筑不均匀沉降，有效地保证了在加固过程中既有建筑的安全。本加固方法经济、施工便捷且施工设备小巧灵活，不受施工环境的影响。
Construction method for foundation reinforcement
一种地基加固的施工方法
HU SHANHONG (author) / XIAO YUMING (author) / LI YIXIANG (author) / HU SHENGBIN (author) / ZOU YULONG (author) / SUN QINGLIU (author) / ZHANG QIWEN (author)
2023-05-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Reinforcement method for pile foundation construction for high-rise building foundation construction
| European Patent Office | 2021