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A platform for research: civil engineering, architecture and urbanism
Construction method for preventing and controlling floating of shield segment by adopting basalt fiber concrete
The invention discloses a construction method for preventing and controlling floating of shield segments by adopting basalt fiber concrete. The construction method comprises the following steps: step 1, downwards drilling holes in the middle position of the bottom of each ring of segment by adopting a water drill drilling machine; 2, opposite-pull hook steel bars or basalt fiber bars are placed in the drill holes to serve as ground anchors; 3, basalt fiber concrete is poured into the drill hole so that the drill hole can be filled with the basalt fiber concrete; the opposite-pull hook steel bars or the basalt fiber bars are straightened during pouring, so that the opposite-pull hook steel bars or the basalt fiber bars are coaxially arranged with the drilled holes; 4, trowelling and curing are carried out, an arc-shaped piece is constructed above the filled drill hole, and in other words, a formwork is erected above the drill hole to pour arc-shaped concrete; the ground anchors are adopted to connect the four scattered structures of the arc-shaped piece, the pipe piece, the base and the concrete bottom plate, and an effective steady-state structural body can be formed; basalt fiber concrete is adopted for pouring and drilling, and the excellent mechanical property, anti-seepage performance and durability of the basalt fiber concrete can be fully utilized.
本发明公开了一种采用玄武岩纤维混凝土防控盾构管片上浮的施工方法，包括：步骤1：采用水钻钻孔机在每环管片底部正中间位置向下钻孔；步骤2：在钻孔内放置对拉拉钩钢筋或玄武岩纤维筋作为地锚；步骤3：向钻孔内灌注玄武岩纤维混凝土使得玄武岩纤维混凝土将钻孔填满；在灌注时将对拉拉钩钢筋或玄武岩纤维筋摆正，使其与钻孔同轴设置；步骤4：抹平并养护，并在填满的钻孔上方施工弧形件，即在钻孔上方立模浇筑弧形的混凝土；本发明采用地锚将弧形件、管片、底座和混凝土底板四个分散结构连接，可形成一个有效的稳态结构体；采用玄武岩纤维混凝土灌注钻孔，可充分利用玄武岩纤维混凝土的优良力学性能、防渗性能和耐久性能。
Construction method for preventing and controlling floating of shield segment by adopting basalt fiber concrete
The invention discloses a construction method for preventing and controlling floating of shield segments by adopting basalt fiber concrete. The construction method comprises the following steps: step 1, downwards drilling holes in the middle position of the bottom of each ring of segment by adopting a water drill drilling machine; 2, opposite-pull hook steel bars or basalt fiber bars are placed in the drill holes to serve as ground anchors; 3, basalt fiber concrete is poured into the drill hole so that the drill hole can be filled with the basalt fiber concrete; the opposite-pull hook steel bars or the basalt fiber bars are straightened during pouring, so that the opposite-pull hook steel bars or the basalt fiber bars are coaxially arranged with the drilled holes; 4, trowelling and curing are carried out, an arc-shaped piece is constructed above the filled drill hole, and in other words, a formwork is erected above the drill hole to pour arc-shaped concrete; the ground anchors are adopted to connect the four scattered structures of the arc-shaped piece, the pipe piece, the base and the concrete bottom plate, and an effective steady-state structural body can be formed; basalt fiber concrete is adopted for pouring and drilling, and the excellent mechanical property, anti-seepage performance and durability of the basalt fiber concrete can be fully utilized.
本发明公开了一种采用玄武岩纤维混凝土防控盾构管片上浮的施工方法，包括：步骤1：采用水钻钻孔机在每环管片底部正中间位置向下钻孔；步骤2：在钻孔内放置对拉拉钩钢筋或玄武岩纤维筋作为地锚；步骤3：向钻孔内灌注玄武岩纤维混凝土使得玄武岩纤维混凝土将钻孔填满；在灌注时将对拉拉钩钢筋或玄武岩纤维筋摆正，使其与钻孔同轴设置；步骤4：抹平并养护，并在填满的钻孔上方施工弧形件，即在钻孔上方立模浇筑弧形的混凝土；本发明采用地锚将弧形件、管片、底座和混凝土底板四个分散结构连接，可形成一个有效的稳态结构体；采用玄武岩纤维混凝土灌注钻孔，可充分利用玄武岩纤维混凝土的优良力学性能、防渗性能和耐久性能。
Construction method for preventing and controlling floating of shield segment by adopting basalt fiber concrete
一种采用玄武岩纤维混凝土防控盾构管片上浮的施工方法
NIU FUSHENG (author) / WANG HUA (author) / WEI XINYI (author) / CHEN HAIJUN (author) / LIN CHUNGANG (author) / WANG GUANGHUI (author) / WANG XIN (author) / CHEN ZHIYUAN (author) / YANG CHAOSHUAI (author) / ZHENG RUOHONG (author)
2024-05-24
Patent
Electronic Resource
Chinese
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