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A platform for research: civil engineering, architecture and urbanism
Cofferdam anti-seepage structure and construction method thereof
According to the cofferdam anti-seepage structure and the construction method thereof, a main rockfill body is located on the upstream face of a riverway, a secondary rockfill body is located on the downstream face of the riverway, a concrete anchoring groove is formed in a riverbed between the main rockfill body and the secondary rockfill body, a composite geomembrane is anchored to the concrete anchoring groove and extends towards the top of a cofferdam, and the two sides of the composite geomembrane are filled with sand cushion layers; the composite geomembrane, the sand cushion layer and the transition material cushion layers are arranged in the main rockfill body, the two sides of the sand cushion layer are filled with transition material cushion layers, the composite geomembrane, the sand cushion layer and the transition material cushion layers are located in the auxiliary rockfill body, a watertight filling body is arranged on the upstream face slope of the main rockfill body, and connected block stone revetments are arranged on the upstream face slope of the auxiliary rockfill body and the upstream face slope of the main rockfill body. The composite geomembrane can be installed under the condition that river closure is formed, the composite geomembrane is easy and convenient to install, and the cofferdam body is good in anti-seepage effect. Unnecessary engineering can be reduced, so that the construction period is guaranteed or shortened, and the method has the advantages of using local materials, reducing material mining, being convenient to construct and low in engineering cost.
一种围堰防渗结构及其施工方法，主堆石体位于河道迎水面，次堆石体位于河道背水面，主堆石体与次堆石体之间的河床上设有混凝土锚固槽，复合土工膜锚固于混凝土锚固槽上并向围堰顶部延伸，复合土工膜的两侧填设有砂垫层，砂垫层的两侧填设有过度料垫层，所述复合土工膜、砂垫层，以及过度料垫层位于次堆石体内，所述主堆石体的迎水面边坡设有水密性填筑体，位于次堆石体和主堆石体迎水面边坡设有相连的块石护岸。能够在形成河道截流的情况下安装复合土工膜，复合土工膜安装简单方便，并且围堰体防渗效果好。能够减少不必要的工程，从而保正或缩短施工工期，具有就地取材、减少材料开采、施工方便、工程成本低的优点。
Cofferdam anti-seepage structure and construction method thereof
According to the cofferdam anti-seepage structure and the construction method thereof, a main rockfill body is located on the upstream face of a riverway, a secondary rockfill body is located on the downstream face of the riverway, a concrete anchoring groove is formed in a riverbed between the main rockfill body and the secondary rockfill body, a composite geomembrane is anchored to the concrete anchoring groove and extends towards the top of a cofferdam, and the two sides of the composite geomembrane are filled with sand cushion layers; the composite geomembrane, the sand cushion layer and the transition material cushion layers are arranged in the main rockfill body, the two sides of the sand cushion layer are filled with transition material cushion layers, the composite geomembrane, the sand cushion layer and the transition material cushion layers are located in the auxiliary rockfill body, a watertight filling body is arranged on the upstream face slope of the main rockfill body, and connected block stone revetments are arranged on the upstream face slope of the auxiliary rockfill body and the upstream face slope of the main rockfill body. The composite geomembrane can be installed under the condition that river closure is formed, the composite geomembrane is easy and convenient to install, and the cofferdam body is good in anti-seepage effect. Unnecessary engineering can be reduced, so that the construction period is guaranteed or shortened, and the method has the advantages of using local materials, reducing material mining, being convenient to construct and low in engineering cost.
一种围堰防渗结构及其施工方法，主堆石体位于河道迎水面，次堆石体位于河道背水面，主堆石体与次堆石体之间的河床上设有混凝土锚固槽，复合土工膜锚固于混凝土锚固槽上并向围堰顶部延伸，复合土工膜的两侧填设有砂垫层，砂垫层的两侧填设有过度料垫层，所述复合土工膜、砂垫层，以及过度料垫层位于次堆石体内，所述主堆石体的迎水面边坡设有水密性填筑体，位于次堆石体和主堆石体迎水面边坡设有相连的块石护岸。能够在形成河道截流的情况下安装复合土工膜，复合土工膜安装简单方便，并且围堰体防渗效果好。能够减少不必要的工程，从而保正或缩短施工工期，具有就地取材、减少材料开采、施工方便、工程成本低的优点。
Cofferdam anti-seepage structure and construction method thereof
一种围堰防渗结构及其施工方法
ZHANG SHITAO (author) / FENG YUFEI (author) / ZHOU CHANGCHUN (author) / LI CHENGGUANG (author) / LIU SHANGGE (author) / YUAN HAO (author) / LI XUEPING (author) / YU SI (author) / LUO HUI (author) / LI ANDING (author)
2022-12-09
Patent
Electronic Resource
Chinese
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