Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cofferdam construction method applied to underlying bedrock geological foundation under pebble bed
The invention provides a cofferdam construction method applied to an underlying bedrock geological foundation of a pebble bed, which is characterized by comprising the following steps of: leading holes in the periphery of a foundation position and replacing and filling clay so as to be convenient for inserting and driving steel pipe piles; inserting and driving steel pipe piles at the foundation position to form a cofferdam; pile casings are inserted into the cofferdam; the part, higher than the water surface, of the top of the pile casing is cut off, and a first-layer inner support is installed at the position, corresponding to the upper portion of the pile casing, of the cofferdam; a cofferdam is excavated through water pumping, and a second-layer inner support is installed on the cofferdam and corresponds to the position below the first-layer inner support; and the cofferdam is excavated to the bottom position of the cushion layer, and a thick cushion layer is poured. The cofferdam construction method applied to the geologic foundation of the underlying bedrock under the pebble bed can adapt to the cofferdam construction condition of the foundation of the underlying bedrock under the underwater pebble bed, the characteristics of the soil layer are well utilized, cofferdam bottom sealing can be not carried out, and the method is beneficial for reducing the engineering amount, optimizing the construction structure and saving the cost.
本发明提供了一种应用于卵石层下伏基岩地质基础的围堰施工方法，其特征在于，包括：在基础位置四周引孔并换填黏土，以便于钢管桩的插打；在基础位置插打钢管桩，形成围堰；在围堰内插打护筒；割除护筒顶部高出水面的部分，并在围堰上对应护筒上方的位置安装第一层内支撑；抽水开挖围堰，并在围堰上对应第一层内支撑下方位置安装第二层内支撑；开挖围堰至垫层底位置，浇筑厚垫层。本发明所述的一种应用于卵石层下伏基岩地质基础的围堰施工方法，可以适应水下卵石层下伏基岩的地基基础围堰施工情况，很好的利用土层特点，可不进行围堰封底，有利于降低工程量，优化施工结构，节省费用。
Cofferdam construction method applied to underlying bedrock geological foundation under pebble bed
The invention provides a cofferdam construction method applied to an underlying bedrock geological foundation of a pebble bed, which is characterized by comprising the following steps of: leading holes in the periphery of a foundation position and replacing and filling clay so as to be convenient for inserting and driving steel pipe piles; inserting and driving steel pipe piles at the foundation position to form a cofferdam; pile casings are inserted into the cofferdam; the part, higher than the water surface, of the top of the pile casing is cut off, and a first-layer inner support is installed at the position, corresponding to the upper portion of the pile casing, of the cofferdam; a cofferdam is excavated through water pumping, and a second-layer inner support is installed on the cofferdam and corresponds to the position below the first-layer inner support; and the cofferdam is excavated to the bottom position of the cushion layer, and a thick cushion layer is poured. The cofferdam construction method applied to the geologic foundation of the underlying bedrock under the pebble bed can adapt to the cofferdam construction condition of the foundation of the underlying bedrock under the underwater pebble bed, the characteristics of the soil layer are well utilized, cofferdam bottom sealing can be not carried out, and the method is beneficial for reducing the engineering amount, optimizing the construction structure and saving the cost.
本发明提供了一种应用于卵石层下伏基岩地质基础的围堰施工方法，其特征在于，包括：在基础位置四周引孔并换填黏土，以便于钢管桩的插打；在基础位置插打钢管桩，形成围堰；在围堰内插打护筒；割除护筒顶部高出水面的部分，并在围堰上对应护筒上方的位置安装第一层内支撑；抽水开挖围堰，并在围堰上对应第一层内支撑下方位置安装第二层内支撑；开挖围堰至垫层底位置，浇筑厚垫层。本发明所述的一种应用于卵石层下伏基岩地质基础的围堰施工方法，可以适应水下卵石层下伏基岩的地基基础围堰施工情况，很好的利用土层特点，可不进行围堰封底，有利于降低工程量，优化施工结构，节省费用。
Cofferdam construction method applied to underlying bedrock geological foundation under pebble bed
一种应用于卵石层下伏基岩地质基础的围堰施工方法
CHEN YINGLIANG (Autor:in) / WANG HAO (Autor:in) / WU LONGQING (Autor:in) / YANG XINXIN (Autor:in) / WANG BENGANG (Autor:in) / GUO YAXUAN (Autor:in) / SONG ZEYU (Autor:in) / WANG SUWEN (Autor:in) / XING WENJING (Autor:in) / LIANG WEI (Autor:in)
20.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Cemented pebble geological cofferdam construction method and cofferdam structure
| Europäisches Patentamt | 2022
Cofferdam device for floating pebble stratum and construction method of cofferdam device
| Europäisches Patentamt | 2023
Anti-seepage grouting construction method for pebble cofferdam
| Europäisches Patentamt | 2024
Construction method for steel sheet pile cofferdam on underwater exposed bedrock
| Europäisches Patentamt | 2015
Construction method of double-wall steel sleeve box cofferdam of pebble riverbed
| Europäisches Patentamt | 2022