A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Double-guide-pipe underwater concrete pouring method for super-large-diameter bridge bored pile
The invention relates to a double-guide-pipe underwater concrete pouring method for a super-large-diameter bridge bored pile. The double-guide-pipe underwater concrete pouring method comprises the steps that two concrete pouring guide pipes are placed in a formed hole of the bored pile; a second hopper is mounted above each of the two concrete pouring guide pipes, and one first hopper is mounted beside the corresponding second hopper; a sky pump is adopted to pump concrete into the first hopper at the same time, and then the sky pump turns into each second hopper at the same time to pump the concrete; when the concrete in the two second hoppers reaches a preset value, the total amount of the concrete in the first hopper and the two second hoppers meets the initial sealing square amount, and initial sealing underwater concrete pouring of the bored pile is started; concrete is continuously poured, and when the minimum embedding depth of the two concrete pouring guide pipes exceeds a certain value, the guide pipe sections, at the same position, of the two concrete pouring guide pipes are dismantled at the same time; and reciprocating circulation is carried out until the underwater concrete in the bored pile hole is completely poured. The method provided by the invention is suitable for construction of the super-large-diameter bridge drilling pile.
本申请涉及一种超大直径桥梁钻孔桩的双导管灌注水下混凝土方法，包括：在钻孔桩已成孔内下放两根混凝土灌注导管；两根混凝土灌注导管上方各安装一个第二料斗，将一个第一料斗安装在第二料斗旁边；采用天泵同时向第一料斗内泵送混凝土，然后天泵同时转向每个第二料斗内泵送混凝土；当两个第二料斗中的混凝土达到预设值时，此时一个第一料斗和两个第二料斗中的混凝土总量满足首封方量，开始钻孔桩首封水下混凝土灌注；继续灌注混凝土，当两根混凝土灌注导管的最小埋设深度超过一定值时，同时拆除两根混凝土灌注导管的一个相同位置的导管节段；往复循环，直至钻孔桩孔内水下混凝土全部灌注完成。本申请提供的方法适用于超大直径桥梁钻孔桩的施工。
Double-guide-pipe underwater concrete pouring method for super-large-diameter bridge bored pile
The invention relates to a double-guide-pipe underwater concrete pouring method for a super-large-diameter bridge bored pile. The double-guide-pipe underwater concrete pouring method comprises the steps that two concrete pouring guide pipes are placed in a formed hole of the bored pile; a second hopper is mounted above each of the two concrete pouring guide pipes, and one first hopper is mounted beside the corresponding second hopper; a sky pump is adopted to pump concrete into the first hopper at the same time, and then the sky pump turns into each second hopper at the same time to pump the concrete; when the concrete in the two second hoppers reaches a preset value, the total amount of the concrete in the first hopper and the two second hoppers meets the initial sealing square amount, and initial sealing underwater concrete pouring of the bored pile is started; concrete is continuously poured, and when the minimum embedding depth of the two concrete pouring guide pipes exceeds a certain value, the guide pipe sections, at the same position, of the two concrete pouring guide pipes are dismantled at the same time; and reciprocating circulation is carried out until the underwater concrete in the bored pile hole is completely poured. The method provided by the invention is suitable for construction of the super-large-diameter bridge drilling pile.
本申请涉及一种超大直径桥梁钻孔桩的双导管灌注水下混凝土方法，包括：在钻孔桩已成孔内下放两根混凝土灌注导管；两根混凝土灌注导管上方各安装一个第二料斗，将一个第一料斗安装在第二料斗旁边；采用天泵同时向第一料斗内泵送混凝土，然后天泵同时转向每个第二料斗内泵送混凝土；当两个第二料斗中的混凝土达到预设值时，此时一个第一料斗和两个第二料斗中的混凝土总量满足首封方量，开始钻孔桩首封水下混凝土灌注；继续灌注混凝土，当两根混凝土灌注导管的最小埋设深度超过一定值时，同时拆除两根混凝土灌注导管的一个相同位置的导管节段；往复循环，直至钻孔桩孔内水下混凝土全部灌注完成。本申请提供的方法适用于超大直径桥梁钻孔桩的施工。
Double-guide-pipe underwater concrete pouring method for super-large-diameter bridge bored pile
一种超大直径桥梁钻孔桩的双导管灌注水下混凝土方法
WANG DONGHUI (author) / TUO PENG (author) / XU PING'AN (author) / LI YONGQI (author) / TANG YONG (author) / YE SHAOQI (author) / PENG PO (author) / ZENG GAO (author) / ZHANG LAIJIAN (author) / XU YOULIANG (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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