Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-diameter easily-collapsed deep hole three-layer steel casing drag reduction sinking and precise positioning construction method
The invention relates to the technical field of building foundation engineering construction, and discloses a large-diameter easily-collapsed deep hole three-layer steel casing drag reduction sinking and precise positioning construction method which comprises the following construction steps: 1) positioning the position of a pile position; (2) an external alignment structure is arranged on the inner side wall of the outer pile casing; (3) the external alignment structure abuts against the outer side wall of the middle pile casing, and an internal alignment structure is arranged on the inner side wall of the middle pile casing; (4) the internal alignment structure abuts against the outer side wall of the inner pile casing; the outer pile casing, the middle pile casing and the inner pile casing act at the same time, so that the frictional resistance of the outer pile casing, the middle pile casing and the inner pile casing in the descending and withdrawing processes can be effectively reduced; the external alignment structure and the internal alignment structure are used for limiting and positioning the middle pile casing and the inner pile casing correspondingly, so that the center of the inner pile casing coincides with the center of the pile position, and accurate positioning of the center of the inner pile casing and the center of the pile position is achieved; due to the sinking of the outer pile casing, the frictional resistance is smaller when the middle pile casing sinks, and the sinking of the inner pile casing is more convenient.
本发明涉及建筑基础工程施工的技术领域，公开了大直径易塌深孔三层钢护筒减阻沉入与精准定位施工方法，包括以下施工步骤：1)、定位桩位的位置；2)、在外护筒的内侧壁设置外部对位结构；3)、外部对位结构抵接在中间护筒的外侧壁，在中间护筒的内侧壁设置内部对位结构；4)、内部对位结构抵接在内护筒的外侧壁；外护筒、中间护筒以及内护筒同时作用，可以有效减少外护筒、中间护筒以及内护筒在下放以及收回过程中的摩阻力；利用外部对位结构和内部对位结构分别对中间护筒和内护筒进行限制定位，使得内护筒的中心与桩位的中心重合，实现对内护筒中心与桩位中心的准确定位；外护筒的下沉，使得中间护筒沉入时的摩阻力更小，更加便于内护筒的下沉。
Large-diameter easily-collapsed deep hole three-layer steel casing drag reduction sinking and precise positioning construction method
The invention relates to the technical field of building foundation engineering construction, and discloses a large-diameter easily-collapsed deep hole three-layer steel casing drag reduction sinking and precise positioning construction method which comprises the following construction steps: 1) positioning the position of a pile position; (2) an external alignment structure is arranged on the inner side wall of the outer pile casing; (3) the external alignment structure abuts against the outer side wall of the middle pile casing, and an internal alignment structure is arranged on the inner side wall of the middle pile casing; (4) the internal alignment structure abuts against the outer side wall of the inner pile casing; the outer pile casing, the middle pile casing and the inner pile casing act at the same time, so that the frictional resistance of the outer pile casing, the middle pile casing and the inner pile casing in the descending and withdrawing processes can be effectively reduced; the external alignment structure and the internal alignment structure are used for limiting and positioning the middle pile casing and the inner pile casing correspondingly, so that the center of the inner pile casing coincides with the center of the pile position, and accurate positioning of the center of the inner pile casing and the center of the pile position is achieved; due to the sinking of the outer pile casing, the frictional resistance is smaller when the middle pile casing sinks, and the sinking of the inner pile casing is more convenient.
本发明涉及建筑基础工程施工的技术领域，公开了大直径易塌深孔三层钢护筒减阻沉入与精准定位施工方法，包括以下施工步骤：1)、定位桩位的位置；2)、在外护筒的内侧壁设置外部对位结构；3)、外部对位结构抵接在中间护筒的外侧壁，在中间护筒的内侧壁设置内部对位结构；4)、内部对位结构抵接在内护筒的外侧壁；外护筒、中间护筒以及内护筒同时作用，可以有效减少外护筒、中间护筒以及内护筒在下放以及收回过程中的摩阻力；利用外部对位结构和内部对位结构分别对中间护筒和内护筒进行限制定位，使得内护筒的中心与桩位的中心重合，实现对内护筒中心与桩位中心的准确定位；外护筒的下沉，使得中间护筒沉入时的摩阻力更小，更加便于内护筒的下沉。
Large-diameter easily-collapsed deep hole three-layer steel casing drag reduction sinking and precise positioning construction method
大直径易塌深孔三层钢护筒减阻沉入与精准定位施工方法
CHEN CHAOLIANG (Autor:in) / LI XINLIN (Autor:in) / LIU HUIMING (Autor:in) / LEI BIN (Autor:in) / ZHAO ZHENZHEN (Autor:in) / WANG GUIXIA (Autor:in) / ZHANG YU (Autor:in) / SHI JINPING (Autor:in) / LIN ZHIHAO (Autor:in) / SU FENG (Autor:in)
30.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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