Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of cover-excavation top-down permanent steel pipe column
The invention relates to a construction method of a cover-excavation top-down permanent steel pipe column, which comprises the following steps: S1, centering a pile position, mounting a steel sleeve and forming a hole by a drilling machine: pressing the steel sleeve into the pile position in a rotating manner by adopting a full-sleeve full-slewing drilling machine, and performing drilling operation at the same time to enable the steel sleeve to advance the drilling depth and detect the perpendicularity of the steel sleeve and the hole-forming perpendicularity; S2, installing a reinforcement cage, and pouring pile foundation concrete; S3, mounting a steel pipe column and checking the perpendicularity of the steel pipe column: mounting a perpendicularity sensor on the steel pipe column, putting the steel pipe column into a full-casing full-slewing drilling machine for hoisting, mounting a plurality of hydraulic jacks on the outer wall of the steel pipe column, and controlling the hydraulic jacks to adjust the position of the steel pipe column according to readings of the perpendicularity sensor. According to the construction method of the cover-excavation top-down permanent steel pipe column, the perpendicularity of the formed hole and the perpendicularity of the steel pipe column can be monitored, deviation rectification is conducted in time, then the installation precision andperpendicularity of the steel pipe column are guaranteed, and the engineering quality and safety performance of a cover-excavation top-down structure are guaranteed.
本发明涉及一种盖挖逆作永久钢管柱的施工方法，包括以下步骤：S1、桩位对中，安装钢套管，钻机成孔：采用全套管全回转钻机在桩位中旋转压入钢套管，并同时进行钻孔操作，使得钢套管超前钻孔深度，检测钢套管垂直度和成孔垂直度；S2、安装钢筋笼，浇注桩基混凝土；S3、安装钢管柱及钢管柱垂直度校核：在钢管柱上安装垂直传感器，再将所述钢管柱放至全套管全回转钻机中进行吊装，在钢管柱的外壁安装若干液压千斤顶，再根据垂直传感器的读数控制液压千斤顶调整钢管柱的位置。本发明的盖挖逆作永久钢管柱的施工方法能监测成孔垂直度和钢管柱垂直度并及时纠偏，进而保证了钢管柱的安装精度和垂直度，保证盖挖逆作结构的工程质量和安全性能。
Construction method of cover-excavation top-down permanent steel pipe column
The invention relates to a construction method of a cover-excavation top-down permanent steel pipe column, which comprises the following steps: S1, centering a pile position, mounting a steel sleeve and forming a hole by a drilling machine: pressing the steel sleeve into the pile position in a rotating manner by adopting a full-sleeve full-slewing drilling machine, and performing drilling operation at the same time to enable the steel sleeve to advance the drilling depth and detect the perpendicularity of the steel sleeve and the hole-forming perpendicularity; S2, installing a reinforcement cage, and pouring pile foundation concrete; S3, mounting a steel pipe column and checking the perpendicularity of the steel pipe column: mounting a perpendicularity sensor on the steel pipe column, putting the steel pipe column into a full-casing full-slewing drilling machine for hoisting, mounting a plurality of hydraulic jacks on the outer wall of the steel pipe column, and controlling the hydraulic jacks to adjust the position of the steel pipe column according to readings of the perpendicularity sensor. According to the construction method of the cover-excavation top-down permanent steel pipe column, the perpendicularity of the formed hole and the perpendicularity of the steel pipe column can be monitored, deviation rectification is conducted in time, then the installation precision andperpendicularity of the steel pipe column are guaranteed, and the engineering quality and safety performance of a cover-excavation top-down structure are guaranteed.
本发明涉及一种盖挖逆作永久钢管柱的施工方法，包括以下步骤：S1、桩位对中，安装钢套管，钻机成孔：采用全套管全回转钻机在桩位中旋转压入钢套管，并同时进行钻孔操作，使得钢套管超前钻孔深度，检测钢套管垂直度和成孔垂直度；S2、安装钢筋笼，浇注桩基混凝土；S3、安装钢管柱及钢管柱垂直度校核：在钢管柱上安装垂直传感器，再将所述钢管柱放至全套管全回转钻机中进行吊装，在钢管柱的外壁安装若干液压千斤顶，再根据垂直传感器的读数控制液压千斤顶调整钢管柱的位置。本发明的盖挖逆作永久钢管柱的施工方法能监测成孔垂直度和钢管柱垂直度并及时纠偏，进而保证了钢管柱的安装精度和垂直度，保证盖挖逆作结构的工程质量和安全性能。
Construction method of cover-excavation top-down permanent steel pipe column
一种盖挖逆作永久钢管柱的施工方法
WANG YANG (Autor:in) / LIAO LINGJUN (Autor:in) / LIU ZHAO (Autor:in) / ZHANG CHUANG (Autor:in) / HUANG YONG (Autor:in) / PAN CHUTIAN (Autor:in)
20.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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