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A platform for research: civil engineering, architecture and urbanism
Cofferdam construction method combining film bag sand filling with steel sheet pile
The invention discloses a cofferdam construction method combining film bag sand filling with a steel sheet pile. The cofferdam construction method comprises the steps of measurement and alignment, film bag positioning and laying, layer-by-layer film bag sand filling, muddy water discharging to enable a film bag sand cofferdam to precipitate, blow filling of closed sand between two layers of film bag sand, water pumping and drainage in a cofferdam foundation pit, steel sheet pile anti-seepage core wall construction and the like. According to the construction method, the film bag sand filling is combined with the steel sheet pile anti-seepage full-section cofferdam, the upper portion of the cofferdam is piled up with the film bag wrapped with sand soil, the lower portion of the cofferdam is anti-seepage through the steel sheet piles, the whole cofferdam becomes a whole, so that the cofferdam is high in integrity, good in self stability, high in adaptability to foundation, high in water pressure resistance and good in anti-seepage effect. The problem that the construction cofferdam is constructed under complex underwater geological conditions can be basically and effectively solved, the overall stability of a cofferdam structure is improved, and the cofferdam construction method has the advantages of being simple in process, fast in construction progress, low in cost and the like and has wide application prospects in the field of cofferdam construction of water conservancy projects.
本发明公开了一种膜袋充砂结合钢板桩围堰施工方法，包括测量定线、膜袋定位铺设、逐层进行膜袋充砂、排出泥水使膜袋砂围堰沉淀、在两层膜袋砂间吹填封闭砂、围堰基坑内抽排水、钢板桩防渗心墙施工等步骤。本发明的施工方法利用膜袋充砂结合钢板桩防渗全断面围堰，上部采用膜袋裹砂土堆筑、下部采用钢板桩防渗，整个围堰成为一个整体，整体性强、自身稳定性好，对地基适应性强，抗水压性强，防渗效果好，基本能有效解决施工围堰在复杂的水下地质条件施工的难题，且提高了围堰结构的整体稳定性，且还具有工艺简单，施工进度快、成本较低等优点，在水利工程施工围堰领域具有广泛的应用前景。
Cofferdam construction method combining film bag sand filling with steel sheet pile
The invention discloses a cofferdam construction method combining film bag sand filling with a steel sheet pile. The cofferdam construction method comprises the steps of measurement and alignment, film bag positioning and laying, layer-by-layer film bag sand filling, muddy water discharging to enable a film bag sand cofferdam to precipitate, blow filling of closed sand between two layers of film bag sand, water pumping and drainage in a cofferdam foundation pit, steel sheet pile anti-seepage core wall construction and the like. According to the construction method, the film bag sand filling is combined with the steel sheet pile anti-seepage full-section cofferdam, the upper portion of the cofferdam is piled up with the film bag wrapped with sand soil, the lower portion of the cofferdam is anti-seepage through the steel sheet piles, the whole cofferdam becomes a whole, so that the cofferdam is high in integrity, good in self stability, high in adaptability to foundation, high in water pressure resistance and good in anti-seepage effect. The problem that the construction cofferdam is constructed under complex underwater geological conditions can be basically and effectively solved, the overall stability of a cofferdam structure is improved, and the cofferdam construction method has the advantages of being simple in process, fast in construction progress, low in cost and the like and has wide application prospects in the field of cofferdam construction of water conservancy projects.
本发明公开了一种膜袋充砂结合钢板桩围堰施工方法，包括测量定线、膜袋定位铺设、逐层进行膜袋充砂、排出泥水使膜袋砂围堰沉淀、在两层膜袋砂间吹填封闭砂、围堰基坑内抽排水、钢板桩防渗心墙施工等步骤。本发明的施工方法利用膜袋充砂结合钢板桩防渗全断面围堰，上部采用膜袋裹砂土堆筑、下部采用钢板桩防渗，整个围堰成为一个整体，整体性强、自身稳定性好，对地基适应性强，抗水压性强，防渗效果好，基本能有效解决施工围堰在复杂的水下地质条件施工的难题，且提高了围堰结构的整体稳定性，且还具有工艺简单，施工进度快、成本较低等优点，在水利工程施工围堰领域具有广泛的应用前景。
Cofferdam construction method combining film bag sand filling with steel sheet pile
一种膜袋充砂结合钢板桩围堰施工方法
MO KAISHENG (author) / YAN ZHIYONG (author) / XIE YUHUA (author) / MO DAYUAN (author) / LIU WEN (author) / WEI WEI (author) / CHEN CHAO (author) / TANG AIXUE (author) / KUANG XINGXING (author) / HUANG WENJI (author)
2022-01-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen