Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for double-wall steel casing of cast-in-situ bored pile
The invention relates to a construction method for a double-wall steel casing of a cast-in-situ bored pile. The construction method comprises the following steps: S1, preparing before construction, confirming a construction site, trimming the construction site, confirming the site elevation, confirming the size of a steel casing and preparing materials in a subsequent factory; s2, a double-wall steel casing is machined and manufactured, the steel casing and the supporting ribs are welded, an inner casing and an outer casing are assembled and tested, and lifting lugs are welded to the surface of the outer casing; the double-wall steel casing is mainly characterized in that the inner casing and the outer casing are completely separated, when the inner casing and a pile body are settled together, the double-wall steel casing is not affected by friction resistance of a soil layer, the upper portion and the lower portion of the inner casing are both 500mm longer than the outer casing, and the distance between the top of the inner casing and the bottom of a test pile cap and the distance between the bottom of the inner casing and the top of an engineering pile are 500mm. By means of the design, convenience is provided for machining and manufacturing, the pile body strength of the empty pile section can be enhanced, more accurate static load test data are provided, and powerful reference data are provided for accurate design and later construction of a pile foundation.
本发明涉及一种钻孔灌注桩双壁钢护筒施工工法，包括以下步骤；S1、施工前准备，确认施工场地，对施工场地进行修整，确认场地标高度，对钢护筒尺寸进行确认以及后续工厂备料；S2、加工制作双壁钢护筒，对钢护筒与支撑肋进行焊接，组装测试内外护筒以及对外护筒表面焊接吊耳；本发明双壁钢护筒的最大特点就是内外两层护筒是完全脱开的，当内护筒与桩身一起沉降时，不会受到土层摩擦阻力的影响，内护筒的上部和下部均比外护筒长500mm，内护筒顶部至试桩桩帽底部，内护筒底至工程桩桩顶以下500mm，此设计为加工制作提供了便捷还能加强空桩段的桩身强度，以此提供更加准确地静载试验数据，为桩基础的精确设计和后期施工提供强有力的参考数据。
Construction method for double-wall steel casing of cast-in-situ bored pile
The invention relates to a construction method for a double-wall steel casing of a cast-in-situ bored pile. The construction method comprises the following steps: S1, preparing before construction, confirming a construction site, trimming the construction site, confirming the site elevation, confirming the size of a steel casing and preparing materials in a subsequent factory; s2, a double-wall steel casing is machined and manufactured, the steel casing and the supporting ribs are welded, an inner casing and an outer casing are assembled and tested, and lifting lugs are welded to the surface of the outer casing; the double-wall steel casing is mainly characterized in that the inner casing and the outer casing are completely separated, when the inner casing and a pile body are settled together, the double-wall steel casing is not affected by friction resistance of a soil layer, the upper portion and the lower portion of the inner casing are both 500mm longer than the outer casing, and the distance between the top of the inner casing and the bottom of a test pile cap and the distance between the bottom of the inner casing and the top of an engineering pile are 500mm. By means of the design, convenience is provided for machining and manufacturing, the pile body strength of the empty pile section can be enhanced, more accurate static load test data are provided, and powerful reference data are provided for accurate design and later construction of a pile foundation.
本发明涉及一种钻孔灌注桩双壁钢护筒施工工法，包括以下步骤；S1、施工前准备，确认施工场地，对施工场地进行修整，确认场地标高度，对钢护筒尺寸进行确认以及后续工厂备料；S2、加工制作双壁钢护筒，对钢护筒与支撑肋进行焊接，组装测试内外护筒以及对外护筒表面焊接吊耳；本发明双壁钢护筒的最大特点就是内外两层护筒是完全脱开的，当内护筒与桩身一起沉降时，不会受到土层摩擦阻力的影响，内护筒的上部和下部均比外护筒长500mm，内护筒顶部至试桩桩帽底部，内护筒底至工程桩桩顶以下500mm，此设计为加工制作提供了便捷还能加强空桩段的桩身强度，以此提供更加准确地静载试验数据，为桩基础的精确设计和后期施工提供强有力的参考数据。
Construction method for double-wall steel casing of cast-in-situ bored pile
一种钻孔灌注桩双壁钢护筒施工工法
FAN ZHIGANG (Autor:in) / CHEN XIAODONG (Autor:in) / WANG HAO (Autor:in) / LU BINXIN (Autor:in) / YANG WEIPING (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Full pile casing cast-in-situ bored pile construction method
| Europäisches Patentamt | 2022
Combined cast-in-situ bored pile double pile casing and construction method thereof
| Europäisches Patentamt | 2021
Combined stiffening steel casing for cast-in-situ bored pile construction
| Europäisches Patentamt | 2023
Segmented lowering steel casing for cast-in-situ bored pile construction
| Europäisches Patentamt | 2021
High-turnover steel casing system cast-in-situ bored pile construction method
| Europäisches Patentamt | 2024