Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of plastic steel sheet pile core wall earth-rock high anti-seepage water retaining cofferdam
The invention provides a construction method of a plastic steel sheet pile core wall earth-rock high anti-seepage water retaining cofferdam. According to the construction method, the high-strength plastic steel combined sheet pile core wall anti-seepage earth-rock cofferdam is constructed. A cofferdam body (2) is of a trapezoidal platform structure. A plastic steel sheet pile core wall formed by at least two plastic steel sheet piles (1) through cutting connection is vertically mounted in the middle of the lower side of the cofferdam body (2). A geomembrane (3) is horizontally laid from the top of the plastic steel sheet pile core wall to the surface of a water-side face (A) and then is integrally turned upwards along the slope face of the water-side face (A) and fully laid on the top faceof the cofferdam body (2). Bagged clay (4) is laid and pressed on the slope surface of the water-side face (A), and rock blocks (5) are laid and pressed on the upper side of the geomembrane (3) on the top face of the cofferdam body (2). Clamping and cutting locking structures matched mutually are arranged on the two opposite side edges of the plastic steel sheet piles (1). The plastic steel sheetpile core wall earth-rock high anti-seepage water retaining cofferdam is high in anti-seepage performance and stability. The engineering quantity of the high spray anti-seepage wall is reduced. Afterthe cofferdam is removed, the plastic steel sheet piles can be recycled. The construction difficulty is reduced. The construction period is shortened. The engineering investment is saved. The construction method is particularly suitable for water retaining cofferdam projects with the high requirement for the high anti-seepage performance.
塑钢板桩心墙土石高防渗挡水围堰施工方法，将塑钢组合板桩与土石围堰施工结合，通过构筑高强度塑钢组合板桩心墙防渗土石围堰；围堰体(2)呈梯形台结构，围堰体(2)下侧中部竖立安装由至少二块塑钢板桩(1)扦插连接构成的塑钢板桩心墙，土工膜(3)由该塑钢板桩心墙顶部水平铺装到迎水面(A)表面，再整体沿迎水面(A)坡面上翻铺装到围堰体(2)顶面满铺，在迎水面(A)坡面表面铺压袋装黏土(4)，在围堰体(2)顶面土工膜(3)上侧铺压块石(5)；塑钢板桩(1)相对两侧边沿有相互配合的卡接扦插锁定结构；抗渗性能高，稳定性强，减少高喷防渗墙工程量，围堰拆除后塑钢板桩可回收重复利用；降低施工难度，缩短施工期，节约工程投资；特别适用于有高防渗性能要求的挡水围堰工程。
Construction method of plastic steel sheet pile core wall earth-rock high anti-seepage water retaining cofferdam
The invention provides a construction method of a plastic steel sheet pile core wall earth-rock high anti-seepage water retaining cofferdam. According to the construction method, the high-strength plastic steel combined sheet pile core wall anti-seepage earth-rock cofferdam is constructed. A cofferdam body (2) is of a trapezoidal platform structure. A plastic steel sheet pile core wall formed by at least two plastic steel sheet piles (1) through cutting connection is vertically mounted in the middle of the lower side of the cofferdam body (2). A geomembrane (3) is horizontally laid from the top of the plastic steel sheet pile core wall to the surface of a water-side face (A) and then is integrally turned upwards along the slope face of the water-side face (A) and fully laid on the top faceof the cofferdam body (2). Bagged clay (4) is laid and pressed on the slope surface of the water-side face (A), and rock blocks (5) are laid and pressed on the upper side of the geomembrane (3) on the top face of the cofferdam body (2). Clamping and cutting locking structures matched mutually are arranged on the two opposite side edges of the plastic steel sheet piles (1). The plastic steel sheetpile core wall earth-rock high anti-seepage water retaining cofferdam is high in anti-seepage performance and stability. The engineering quantity of the high spray anti-seepage wall is reduced. Afterthe cofferdam is removed, the plastic steel sheet piles can be recycled. The construction difficulty is reduced. The construction period is shortened. The engineering investment is saved. The construction method is particularly suitable for water retaining cofferdam projects with the high requirement for the high anti-seepage performance.
塑钢板桩心墙土石高防渗挡水围堰施工方法，将塑钢组合板桩与土石围堰施工结合，通过构筑高强度塑钢组合板桩心墙防渗土石围堰；围堰体(2)呈梯形台结构，围堰体(2)下侧中部竖立安装由至少二块塑钢板桩(1)扦插连接构成的塑钢板桩心墙，土工膜(3)由该塑钢板桩心墙顶部水平铺装到迎水面(A)表面，再整体沿迎水面(A)坡面上翻铺装到围堰体(2)顶面满铺，在迎水面(A)坡面表面铺压袋装黏土(4)，在围堰体(2)顶面土工膜(3)上侧铺压块石(5)；塑钢板桩(1)相对两侧边沿有相互配合的卡接扦插锁定结构；抗渗性能高，稳定性强，减少高喷防渗墙工程量，围堰拆除后塑钢板桩可回收重复利用；降低施工难度，缩短施工期，节约工程投资；特别适用于有高防渗性能要求的挡水围堰工程。
Construction method of plastic steel sheet pile core wall earth-rock high anti-seepage water retaining cofferdam
塑钢板桩心墙土石高防渗挡水围堰施工方法
GE GANG (Autor:in) / YUAN XIAOYU (Autor:in)
01.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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