Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Positioning method for cover and excavation top-down concrete filled steel tube center column of subway station
The invention discloses a subway station cover and excavation top-down steel pipe concrete center column positioning method which comprises the steps that after a pile hole is obtained, a pile casing is buried in the upper section of the pile hole, the axis of the pile casing coincides with the axis of the pile hole, and the outer side wall of the pile casing abuts against the side wall of the pile hole; foundation piles are arranged at designated positions in the bottoms of the pile holes; a full-slewing drilling machine is installed on the pile hole, the steel pipe column is lowered to the designated position of the pile hole through the full-slewing drilling machine, and the perpendicularity of the steel pipe column is controlled in the lowering process; the bottom of the steel pipe column and the foundation pile are poured together through concrete till the designed elevation is reached; a second reinforcement cage is put down and installed at the top of the steel pipe column, gravel is backfilled in the pile hole, and the steel casing is pulled out; excavating a soil layer between the road and the elevation of the station top plate, and constructing the subway station top plate. The steel pipe column is matched with the tool column with the reflective strip, downward running is conducted through the full-slewing drilling machine, monitoring is conducted through the total station, and vertical downward running of the steel pipe column can be guaranteed.
本发明公开了一种用于地铁车站盖挖逆作钢管混凝土中柱定位方法，获得桩孔后在桩孔上段内埋设护筒，护筒的轴线与桩孔的轴线重合，护筒的外侧壁与桩孔的侧壁抵接；桩孔底部内指定位置设置基础桩；在桩孔上安装全回转钻机，通过全回转钻机将钢管柱下放到桩孔指定位置，下放过程中控制钢管柱的垂直度；将钢管柱底部与基础桩通过混凝土浇筑在一起，浇筑至设计标高后；下放第二钢筋笼并安装在钢管柱顶部，在桩孔内回填碎石，拔出钢护筒；进行道路至车站顶板标高之间的土层开挖，施工地铁车站顶板。本申请采用钢管柱和带反光条的工具柱配合，再通过全回转钻机进行下方，并通过全站仪进行监测，能够保障钢管柱垂直下放。
Positioning method for cover and excavation top-down concrete filled steel tube center column of subway station
The invention discloses a subway station cover and excavation top-down steel pipe concrete center column positioning method which comprises the steps that after a pile hole is obtained, a pile casing is buried in the upper section of the pile hole, the axis of the pile casing coincides with the axis of the pile hole, and the outer side wall of the pile casing abuts against the side wall of the pile hole; foundation piles are arranged at designated positions in the bottoms of the pile holes; a full-slewing drilling machine is installed on the pile hole, the steel pipe column is lowered to the designated position of the pile hole through the full-slewing drilling machine, and the perpendicularity of the steel pipe column is controlled in the lowering process; the bottom of the steel pipe column and the foundation pile are poured together through concrete till the designed elevation is reached; a second reinforcement cage is put down and installed at the top of the steel pipe column, gravel is backfilled in the pile hole, and the steel casing is pulled out; excavating a soil layer between the road and the elevation of the station top plate, and constructing the subway station top plate. The steel pipe column is matched with the tool column with the reflective strip, downward running is conducted through the full-slewing drilling machine, monitoring is conducted through the total station, and vertical downward running of the steel pipe column can be guaranteed.
本发明公开了一种用于地铁车站盖挖逆作钢管混凝土中柱定位方法，获得桩孔后在桩孔上段内埋设护筒，护筒的轴线与桩孔的轴线重合，护筒的外侧壁与桩孔的侧壁抵接；桩孔底部内指定位置设置基础桩；在桩孔上安装全回转钻机，通过全回转钻机将钢管柱下放到桩孔指定位置，下放过程中控制钢管柱的垂直度；将钢管柱底部与基础桩通过混凝土浇筑在一起，浇筑至设计标高后；下放第二钢筋笼并安装在钢管柱顶部，在桩孔内回填碎石，拔出钢护筒；进行道路至车站顶板标高之间的土层开挖，施工地铁车站顶板。本申请采用钢管柱和带反光条的工具柱配合，再通过全回转钻机进行下方，并通过全站仪进行监测，能够保障钢管柱垂直下放。
Positioning method for cover and excavation top-down concrete filled steel tube center column of subway station
用于地铁车站盖挖逆作钢管混凝土中柱定位方法
SONG XIONG (Autor:in) / ZHAO JIANAN (Autor:in) / TONG JIANYONG (Autor:in) / OU QIONG (Autor:in) / XU CHENGSHUANG (Autor:in) / ZHANG FAN (Autor:in) / XING FANGYUAN (Autor:in)
12.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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