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A platform for research: civil engineering, architecture and urbanism
Jacking deviation rectifying construction method based on underpinned pile
The jacking deviation rectifying construction method comprises the following steps that a pile hole is formed in a foundation of a building, a pile is formed below the building through the pile hole, the top of the pile penetrates through the foundation and extends to the position above the foundation, and a pile body of the pile does not make contact with the foundation; a jack and a counter-force beam are sequentially installed at the top of the pile, the counter-force beam is fixedly connected with the foundation through an anchor rod, and the counter-force beam transfers the load of the foundation to the pile through the jack; the counter-force beam is lifted through the jack, so that the foundation is lifted to the expected height; and after deviation rectification of the building is completed, the foundation and the piles are connected into a whole, meanwhile, the foundation is grouted and filled, and then the jacks and the counter-force beams are removed. According to the construction method, broken walls and broken columns of the first floor of the building are not needed, underpinning of a jacking system is not needed either, an upper structure is not damaged, and the clear height of the first floor is not different from that before deviation correction.
本发明公开了一种基于托换桩的顶升纠偏工法，包括以下步骤：在建筑物的基础上开桩孔，通过桩孔在建筑物的下方形成桩，桩的顶部贯穿基础并且延伸至基础的上方，桩的桩身与基础不接触；在桩的顶部依次安装千斤顶和反力梁，通过锚杆将反力梁与基础固定连接，反力梁将基础的荷载通过千斤顶转移到桩上；通过千斤顶抬升反力梁，以使得基础被抬升至预期的高度；完成对建筑物的纠偏之后，将基础和桩连接成一体，同时地基注浆填充，然后撤去千斤顶和反力梁。上述工法不需要对建筑物首层断墙断柱，也不需要进行顶升系统的托换，对上部结构不造成损伤，首层净高与纠偏之前没有差异。
Jacking deviation rectifying construction method based on underpinned pile
The jacking deviation rectifying construction method comprises the following steps that a pile hole is formed in a foundation of a building, a pile is formed below the building through the pile hole, the top of the pile penetrates through the foundation and extends to the position above the foundation, and a pile body of the pile does not make contact with the foundation; a jack and a counter-force beam are sequentially installed at the top of the pile, the counter-force beam is fixedly connected with the foundation through an anchor rod, and the counter-force beam transfers the load of the foundation to the pile through the jack; the counter-force beam is lifted through the jack, so that the foundation is lifted to the expected height; and after deviation rectification of the building is completed, the foundation and the piles are connected into a whole, meanwhile, the foundation is grouted and filled, and then the jacks and the counter-force beams are removed. According to the construction method, broken walls and broken columns of the first floor of the building are not needed, underpinning of a jacking system is not needed either, an upper structure is not damaged, and the clear height of the first floor is not different from that before deviation correction.
本发明公开了一种基于托换桩的顶升纠偏工法，包括以下步骤：在建筑物的基础上开桩孔，通过桩孔在建筑物的下方形成桩，桩的顶部贯穿基础并且延伸至基础的上方，桩的桩身与基础不接触；在桩的顶部依次安装千斤顶和反力梁，通过锚杆将反力梁与基础固定连接，反力梁将基础的荷载通过千斤顶转移到桩上；通过千斤顶抬升反力梁，以使得基础被抬升至预期的高度；完成对建筑物的纠偏之后，将基础和桩连接成一体，同时地基注浆填充，然后撤去千斤顶和反力梁。上述工法不需要对建筑物首层断墙断柱，也不需要进行顶升系统的托换，对上部结构不造成损伤，首层净高与纠偏之前没有差异。
Jacking deviation rectifying construction method based on underpinned pile
一种基于托换桩的顶升纠偏工法
ZHANG HAN (author) / WANG YEYI (author) / ZOU QINGXIANG (author) / GUO JINXUE (author) / LI XIANGYU (author)
2023-05-23
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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