Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite stratum waterproof curtain construction method
The invention provides a composite stratum waterproof curtain construction method which comprises the steps that a foundation trench is excavated, and after construction of a retaining structure cast-in-situ bored pile is completed, a slurry trench is excavated; the rotary drilling rig is in place, and all-around levelness of a drilling rig body and perpendicularity of the drilling rig are adjusted; a rotary drilling rig is used for guiding holes, the rotary drilling rig is used for drilling and guiding the holes in the excavated slurry groove, and the distributed holes are grouped, arranged and numbered; after the rotary drilling guide hole finishes two groups of sections, a double-wheel stirring trenching machine is adopted for trenching; after the water-stop curtain wall bottom range is re-stirred for 1-2 times, a power head of the double-wheel stirring trenching machine starts to be slowly and uniformly lifted, guniting and re-stirring are enhanced in the lifting process, a rotary stirring and hole forming combined mode is adopted in the method, and the problem that double-wheel stirring trenching and rock entering are difficult is effectively solved; and the rock-entering depth of the waterproof curtain under the composite stratum condition is ensured, and the problem of rock-soil interface leakage is effectively solved.
本发明提出一种复合地层止水帷幕施工方法，包括：基槽开挖，围护结构钻孔灌注桩施工完成后，开挖出泥浆沟槽；旋挖钻机就位，调整钻机机身前后左右的水平及钻机垂直度；采用旋挖钻引孔，在开挖的泥浆沟槽内，用旋挖钻机钻孔引孔，并对布孔进行分组排列编号；旋挖钻引孔完成两个组段后，采用双轮搅拌成槽机施作成槽；止水帷幕墙底范围复搅1～2次后开始慢速均匀提升双轮搅拌成槽机的动力头，提升过程加强喷浆和复搅拌，所述方法采用旋搅联合成孔模式，有效解决了双轮搅拌成槽入岩困难的问题，确保了复合地层条件下止水帷幕入岩深度有效解决了岩土交界面渗漏问题。
Composite stratum waterproof curtain construction method
The invention provides a composite stratum waterproof curtain construction method which comprises the steps that a foundation trench is excavated, and after construction of a retaining structure cast-in-situ bored pile is completed, a slurry trench is excavated; the rotary drilling rig is in place, and all-around levelness of a drilling rig body and perpendicularity of the drilling rig are adjusted; a rotary drilling rig is used for guiding holes, the rotary drilling rig is used for drilling and guiding the holes in the excavated slurry groove, and the distributed holes are grouped, arranged and numbered; after the rotary drilling guide hole finishes two groups of sections, a double-wheel stirring trenching machine is adopted for trenching; after the water-stop curtain wall bottom range is re-stirred for 1-2 times, a power head of the double-wheel stirring trenching machine starts to be slowly and uniformly lifted, guniting and re-stirring are enhanced in the lifting process, a rotary stirring and hole forming combined mode is adopted in the method, and the problem that double-wheel stirring trenching and rock entering are difficult is effectively solved; and the rock-entering depth of the waterproof curtain under the composite stratum condition is ensured, and the problem of rock-soil interface leakage is effectively solved.
本发明提出一种复合地层止水帷幕施工方法，包括：基槽开挖，围护结构钻孔灌注桩施工完成后，开挖出泥浆沟槽；旋挖钻机就位，调整钻机机身前后左右的水平及钻机垂直度；采用旋挖钻引孔，在开挖的泥浆沟槽内，用旋挖钻机钻孔引孔，并对布孔进行分组排列编号；旋挖钻引孔完成两个组段后，采用双轮搅拌成槽机施作成槽；止水帷幕墙底范围复搅1～2次后开始慢速均匀提升双轮搅拌成槽机的动力头，提升过程加强喷浆和复搅拌，所述方法采用旋搅联合成孔模式，有效解决了双轮搅拌成槽入岩困难的问题，确保了复合地层条件下止水帷幕入岩深度有效解决了岩土交界面渗漏问题。
Composite stratum waterproof curtain construction method
复合地层止水帷幕施工方法
MAO YUFEI (Autor:in) / ZHOU GUIYIN (Autor:in) / ZHANG JIANWEI (Autor:in) / WANG FENG (Autor:in) / LI SHUXING (Autor:in) / ZHANG LEI (Autor:in) / CAO ZIQI (Autor:in) / XIE YANG (Autor:in)
06.09.2024
Patent
Elektronische Ressource
Chinesisch
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