A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method and structure of earth rock cofferdam seepage-proofing system
The invention discloses a construction method and structure of an earth rock cofferdam seepage-proofing system. The method is suitable for constructing the seepage-proofing system of small-medium hydraulic and hydro-power earth rock cofferdams. According to the method, a concrete seepage-proofing wall or high-spraying plate wall structure usually used in large hydraulic and hydro-power earth rock cofferdams is eliminated. Seepage-proofing is carried out on a cofferdam body through a composite geo-membrane, and seepage-proofing is carried out on a cofferdam base through a clay cutoff trench. The top edge of the composite geo-membrane is closed through face layer concrete on the top of the cofferdam body. The bottom edge of the composite geo-membrane is combined with the clay cutoff trench through cushion layer concrete to form a closed seepage-proofing system. The composite geo-membrane is arranged in the earth rock cofferdam, the clay cutoff trench is formed in the cofferdam base, the seepage-proofing system is formed, and therefore the requirement for flow guiding in the small-medium hydraulic and hydro-power engineering construction can be met. Compared with a traditional seepage-proofing manner, the construction difficulty is lowered, the engineering investment is saved, and the construction period is shortened.
Construction method and structure of earth rock cofferdam seepage-proofing system
The invention discloses a construction method and structure of an earth rock cofferdam seepage-proofing system. The method is suitable for constructing the seepage-proofing system of small-medium hydraulic and hydro-power earth rock cofferdams. According to the method, a concrete seepage-proofing wall or high-spraying plate wall structure usually used in large hydraulic and hydro-power earth rock cofferdams is eliminated. Seepage-proofing is carried out on a cofferdam body through a composite geo-membrane, and seepage-proofing is carried out on a cofferdam base through a clay cutoff trench. The top edge of the composite geo-membrane is closed through face layer concrete on the top of the cofferdam body. The bottom edge of the composite geo-membrane is combined with the clay cutoff trench through cushion layer concrete to form a closed seepage-proofing system. The composite geo-membrane is arranged in the earth rock cofferdam, the clay cutoff trench is formed in the cofferdam base, the seepage-proofing system is formed, and therefore the requirement for flow guiding in the small-medium hydraulic and hydro-power engineering construction can be met. Compared with a traditional seepage-proofing manner, the construction difficulty is lowered, the engineering investment is saved, and the construction period is shortened.
Construction method and structure of earth rock cofferdam seepage-proofing system
ZHANG TAO (author) / YU LINGGUANG (author) / QIN XIAOLIANG (author) / PENG JILE (author) / ZHAO JIYONG (author) / YU ZHICHAO (author) / LIU SHUFANG (author) / ZHAO XING (author)
2015-11-04
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
High-rigidity seepage-proofing combined cofferdam and construction method thereof
| European Patent Office | 2020
Construction method of earth rock cofferdam with two anti-seepage structures
| European Patent Office | 2024
Earth rock cofferdam anti-seepage wall structure capable of effectively intercepting seepage
| European Patent Office | 2024
| European Patent Office | 2023
Earth rock cofferdam and concrete cofferdam connecting structure and construction method thereof
| European Patent Office | 2022