A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Concrete pouring method for concrete diaphragm wall
One or more embodiments of the invention provide a concrete pouring method for a concrete diaphragm wall. The principle that concrete is poured through a slurry downcomer vertical lifting method is utilized, high-retarding concrete is poured in firstly when a slotted hole is poured, and after a first guide pipe is dismantled, the high-retarding concrete poured in firstly above the buried depth of a bottom guide pipe is located at the top of a lifting concrete face all the time. By means of the method, a series of problems caused by initial setting of the concrete lifting top face are solved, and the technical contradiction that when an ultra-deep diaphragm wall is connected through a joint pipe method wall section, the concrete pouring technology and the joint pipe drawing technology are mutually restricted due to initial setting of the concrete lifting top face is solved. The concrete pouring method has the beneficial effects that when the joint pipe method is adopted for wall section connection, under the working conditions that the concrete pouring speed is strictly limited and smooth drawing of a joint pipe is guaranteed, the technical problems that due to initial setting of the concrete lifting top face, a hard cover appears on the concrete top face, and the pouring guide pipe and the joint pipe are wrapped by initial setting concrete are solved.
本说明书一个或多个实施例提供一种混凝土防渗墙的混凝土浇筑方法，利用泥浆下导管直升法浇筑混凝土的原理，在槽孔开浇时先浇入高缓凝的混凝土，在第一根导管拆除后，底部导管埋深以上先浇入的高缓凝混凝土始终处在上升混凝土面的顶部，使用该方法解决混凝土上升顶面初凝引起的一系列问题，解决了超深防渗墙采用“接头管”法墙段连接时，混凝土浇筑技术与接头管拔管技术，因上升顶面混凝土初凝而引发的相互制约的技术矛盾。达到效果：在采用“接头管法”进行墙段连接时，在严格限制混凝土的浇筑速度，保证接头管顺利起拔的工况条件下，解决混凝土上升顶面初凝，引发的混凝土顶面出现“硬盖”和初凝混凝土“包裹”浇筑导管及接头管等技术问题。
Concrete pouring method for concrete diaphragm wall
One or more embodiments of the invention provide a concrete pouring method for a concrete diaphragm wall. The principle that concrete is poured through a slurry downcomer vertical lifting method is utilized, high-retarding concrete is poured in firstly when a slotted hole is poured, and after a first guide pipe is dismantled, the high-retarding concrete poured in firstly above the buried depth of a bottom guide pipe is located at the top of a lifting concrete face all the time. By means of the method, a series of problems caused by initial setting of the concrete lifting top face are solved, and the technical contradiction that when an ultra-deep diaphragm wall is connected through a joint pipe method wall section, the concrete pouring technology and the joint pipe drawing technology are mutually restricted due to initial setting of the concrete lifting top face is solved. The concrete pouring method has the beneficial effects that when the joint pipe method is adopted for wall section connection, under the working conditions that the concrete pouring speed is strictly limited and smooth drawing of a joint pipe is guaranteed, the technical problems that due to initial setting of the concrete lifting top face, a hard cover appears on the concrete top face, and the pouring guide pipe and the joint pipe are wrapped by initial setting concrete are solved.
本说明书一个或多个实施例提供一种混凝土防渗墙的混凝土浇筑方法，利用泥浆下导管直升法浇筑混凝土的原理，在槽孔开浇时先浇入高缓凝的混凝土，在第一根导管拆除后，底部导管埋深以上先浇入的高缓凝混凝土始终处在上升混凝土面的顶部，使用该方法解决混凝土上升顶面初凝引起的一系列问题，解决了超深防渗墙采用“接头管”法墙段连接时，混凝土浇筑技术与接头管拔管技术，因上升顶面混凝土初凝而引发的相互制约的技术矛盾。达到效果：在采用“接头管法”进行墙段连接时，在严格限制混凝土的浇筑速度，保证接头管顺利起拔的工况条件下，解决混凝土上升顶面初凝，引发的混凝土顶面出现“硬盖”和初凝混凝土“包裹”浇筑导管及接头管等技术问题。
Concrete pouring method for concrete diaphragm wall
一种混凝土防渗墙的混凝土浇筑方法
ZHENG WEI (author) / CHENG YI (author) / LIU YONG (author) / DING YAOHUA (author) / GUO GANG (author) / CAO BAOHAI (author) / WANG XIAOGANG (author)
2021-07-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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