A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of retard-bonded prestressed uplift pile
The invention relates to the field of prestressed uplift pile construction, in particular to a retard-bonded prestressed uplift pile construction method which comprises the following steps: S1, pile hole excavation, S2, prestressed tendon binding, S3, reinforcement cage hoisting, S4, primary pouring, S5, foundation pit excavation, S6, pile breaking, S7, secondary pouring and S8, tensioning. By adopting the mode of firstly forming the pile and then excavating the foundation pit, large-scale pile forming equipment which is inconvenient to go into the foundation pit can carry out construction operation above the ground. Therefore, a narrow operation space in the deep foundation pit is eliminated, and equipment can enter and exit from the foundation pit more conveniently. The method has the advantages that the construction period of the retard-bonded prestressed uplift pile in a deep foundation pit project is shortened, and the uplift pile is prevented from being scrapped.
本申请涉及预应力抗拔桩施工的领域，尤其是涉及一种缓粘结预应力抗拔桩施工方法，包括以下步骤：S1桩孔开挖→S2绑扎预应力筋→S3吊装钢筋笼→S4第一次浇筑→S5开挖基坑→S6破桩→S7二次浇筑→S8张拉。通过采用先成桩后开挖基坑的方式，使不便下基坑的大型成桩设备能够在地面以上进行施工作业。从而摆脱了深基坑内部狭小的作业空间，更加便于设备进、出场。本申请具有缩短深基坑项目中缓粘结预应力抗拔桩的施工工期，避免抗拔桩报废的效果。
Construction method of retard-bonded prestressed uplift pile
The invention relates to the field of prestressed uplift pile construction, in particular to a retard-bonded prestressed uplift pile construction method which comprises the following steps: S1, pile hole excavation, S2, prestressed tendon binding, S3, reinforcement cage hoisting, S4, primary pouring, S5, foundation pit excavation, S6, pile breaking, S7, secondary pouring and S8, tensioning. By adopting the mode of firstly forming the pile and then excavating the foundation pit, large-scale pile forming equipment which is inconvenient to go into the foundation pit can carry out construction operation above the ground. Therefore, a narrow operation space in the deep foundation pit is eliminated, and equipment can enter and exit from the foundation pit more conveniently. The method has the advantages that the construction period of the retard-bonded prestressed uplift pile in a deep foundation pit project is shortened, and the uplift pile is prevented from being scrapped.
本申请涉及预应力抗拔桩施工的领域，尤其是涉及一种缓粘结预应力抗拔桩施工方法，包括以下步骤：S1桩孔开挖→S2绑扎预应力筋→S3吊装钢筋笼→S4第一次浇筑→S5开挖基坑→S6破桩→S7二次浇筑→S8张拉。通过采用先成桩后开挖基坑的方式，使不便下基坑的大型成桩设备能够在地面以上进行施工作业。从而摆脱了深基坑内部狭小的作业空间，更加便于设备进、出场。本申请具有缩短深基坑项目中缓粘结预应力抗拔桩的施工工期，避免抗拔桩报废的效果。
Construction method of retard-bonded prestressed uplift pile
缓粘结预应力抗拔桩施工方法
YANG WENQING (author) / ZHENG WEIGUO (author) / WANG ZUO (author) / WU LIN (author)
2023-06-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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